From 571435b4c3fdd9a6fb452102a85dfd00075fb14f Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 1 Oct 2025 15:25:19 +0100 Subject: [PATCH 01/15] Added SwapDigraphs and DigraphsRemoveAllEdges functions --- doc/oper.xml | 21 +++++++++++++++++++++ gap/oper.gd | 2 ++ gap/oper.gi | 19 +++++++++++++++++++ tst/standard/oper.tst | 16 ++++++++++++++++ 4 files changed, 58 insertions(+) diff --git a/doc/oper.xml b/doc/oper.xml index 0930e8f3c..e5d06ccf8 100644 --- a/doc/oper.xml +++ b/doc/oper.xml @@ -777,6 +777,27 @@ true <#/GAPDoc> +<#GAPDoc Label="DigraphRemoveAllEdges"> + + + An empty digraph. + + This operation returns a digraph constructed from digraph, which is mutable, + by removing all of the edges in the original digraph. + (see ). +

+ + D3 := Digraph(IsMutableDigraph, [[2],[1],[2]]); + +gap> DigraphRemoveAllEdges(D3); + +true +]]> + + +<#/GAPDoc> + <#GAPDoc Label="InducedSubdigraph"> diff --git a/gap/oper.gd b/gap/oper.gd index f6a37e0f8..279deb452 100644 --- a/gap/oper.gd +++ b/gap/oper.gd @@ -29,6 +29,8 @@ DeclareOperation("DigraphRemoveEdge", [IsDigraph, IsPosInt, IsPosInt]); DeclareOperation("DigraphRemoveEdge", [IsDigraph, IsList]); DeclareOperation("DigraphRemoveEdges", [IsDigraph, IsList]); +DeclareOperation("DigraphRemoveAllEdges", [IsDigraph]); + DeclareOperation("DigraphReverseEdge", [IsDigraph, IsList]); DeclareOperation("DigraphReverseEdge", [IsDigraph, IsPosInt, IsPosInt]); DeclareOperation("DigraphReverseEdges", [IsDigraph, IsList]); diff --git a/gap/oper.gi b/gap/oper.gi index 3876db50e..1dbd9ed3c 100644 --- a/gap/oper.gi +++ b/gap/oper.gi @@ -277,6 +277,25 @@ InstallMethod(DigraphRemoveEdges, "for an immutable digraph and a list", [IsImmutableDigraph, IsList], {D, edges} -> MakeImmutable(DigraphRemoveEdges(DigraphMutableCopy(D), edges))); +InstallMethod(DigraphRemoveAllEdges, "for a mutable digraph", +[IsDigraph], +function(D) + local i, neighbour, nbs, currentEdges; + if IsImmutableDigraph(D) then + ErrorNoReturn("Argument must be a mutable digraph"); + else + nbs := OutNeighboursMutableCopy(D); + + for i in [1..Length(nbs)] do + currentEdges := DigraphOutEdges(D, i); + DigraphRemoveEdges(D, currentEdges); + od; + + return D; + fi; +end); + + InstallMethod(DigraphReverseEdge, "for a mutable digraph by out-neighbours and two positive integers", [IsMutableDigraph and IsDigraphByOutNeighboursRep, IsPosInt, IsPosInt], diff --git a/tst/standard/oper.tst b/tst/standard/oper.tst index 1c813fe21..dfbdbd3ef 100644 --- a/tst/standard/oper.tst +++ b/tst/standard/oper.tst @@ -134,6 +134,22 @@ gap> M := DigraphMutableCopy(D);; gap> M ^ p = OnDigraphs(M, p); true +# DigraphRemoveAllEdges: for a digraph +gap> gr := Digraph(IsImmutableDigraph, [[2, 3], [3], [4], []]); + +gap> DigraphRemoveAllEdges(gr); +Error, Argument must be a mutable digraph +gap> gr2 := Digraph(IsMutableDigraph, [[2, 3], [3], [4], []]); + +gap> DigraphRemoveAllEdges(gr2); + +gap> gr3 := Digraph(IsMutableDigraph, [[], [], [], []]); + +gap> DigraphRemoveAllEdges(gr3); + +gap> OutNeighbours(gr3); +[ [ ], [ ], [ ], [ ] ] + # OnDigraphs: for a digraph and a perm gap> gr := Digraph([[2], [1], [3]]); From d2fe7008623e128d80a3610f0e1231125925edee Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 1 Oct 2025 15:54:31 +0100 Subject: [PATCH 02/15] Fixed gaplint errors --- configure~ | 7137 ++++++++++++++++++++++++++++++++++++++++++++++++++ doc/oper.xml | 2 +- gap/oper.gi | 12 +- 3 files changed, 7143 insertions(+), 8 deletions(-) create mode 100755 configure~ diff --git a/configure~ b/configure~ new file mode 100755 index 000000000..e13fdd34c --- /dev/null +++ b/configure~ @@ -0,0 +1,7137 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.72 for digraphs GAP package. +# +# +# Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation, +# Inc. +# +# +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1 +then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else case e in #( + e) case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac ;; +esac +fi + + + +# Reset variables that may have inherited troublesome values from +# the environment. + +# IFS needs to be set, to space, tab, and newline, in precisely that order. +# (If _AS_PATH_WALK were called with IFS unset, it would have the +# side effect of setting IFS to empty, thus disabling word splitting.) +# Quoting is to prevent editors from complaining about space-tab. +as_nl=' +' +export as_nl +IFS=" "" $as_nl" + +PS1='$ ' +PS2='> ' +PS4='+ ' + +# Ensure predictable behavior from utilities with locale-dependent output. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# We cannot yet rely on "unset" to work, but we need these variables +# to be unset--not just set to an empty or harmless value--now, to +# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh). This construct +# also avoids known problems related to "unset" and subshell syntax +# in other old shells (e.g. bash 2.01 and pdksh 5.2.14). +for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH +do eval test \${$as_var+y} \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done + +# Ensure that fds 0, 1, and 2 are open. +if (exec 3>&0) 2>/dev/null; then :; else exec 0&1) 2>/dev/null; then :; else exec 1>/dev/null; fi +if (exec 3>&2) ; then :; else exec 2>/dev/null; fi + +# The user is always right. +if ${PATH_SEPARATOR+false} :; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + test -r "$as_dir$0" && as_myself=$as_dir$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as 'sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed 'exec'. +printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1 +then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else case e in #( + e) case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ) +then : + +else case e in #( + e) exitcode=1; echo positional parameters were not saved. ;; +esac +fi +test x\$exitcode = x0 || exit 1 +blah=\$(echo \$(echo blah)) +test x\"\$blah\" = xblah || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 +test \$(( 1 + 1 )) = 2 || exit 1" + if (eval "$as_required") 2>/dev/null +then : + as_have_required=yes +else case e in #( + e) as_have_required=no ;; +esac +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null +then : + +else case e in #( + e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null +then : + CONFIG_SHELL=$as_shell as_have_required=yes + if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null +then : + break 2 +fi +fi + done;; + esac + as_found=false +done +IFS=$as_save_IFS +if $as_found +then : + +else case e in #( + e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null +then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi ;; +esac +fi + + + if test "x$CONFIG_SHELL" != x +then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed 'exec'. +printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno +then : + printf "%s\n" "$0: This script requires a shell more modern than all" + printf "%s\n" "$0: the shells that I found on your system." + if test ${ZSH_VERSION+y} ; then + printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should" + printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later." + else + printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system, +$0: including any error possibly output before this +$0: message. Then install a modern shell, or manually run +$0: the script under such a shell if you do have one." + fi + exit 1 +fi ;; +esac +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +printf "%s\n" X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null +then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else case e in #( + e) as_fn_append () + { + eval $1=\$$1\$2 + } ;; +esac +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null +then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else case e in #( + e) as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } ;; +esac +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + printf "%s\n" "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +printf "%s\n" X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + t clear + :clear + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . 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We do this before executing the actions. + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_cxx_try_link +ac_configure_args_raw= +for ac_arg +do + case $ac_arg in + *\'*) + ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append ac_configure_args_raw " '$ac_arg'" +done + +case $ac_configure_args_raw in + *$as_nl*) + ac_safe_unquote= ;; + *) + ac_unsafe_z='|&;<>()$`\\"*?[ '' ' # This string ends in space, tab. + ac_unsafe_a="$ac_unsafe_z#~" + ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g" + ac_configure_args_raw=` printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;; +esac + +cat >config.log <<_ACEOF +This file contains any messages produced by compilers while +running configure, to aid debugging if configure makes a mistake. + +It was created by digraphs $as_me GAP package, which was +generated by GNU Autoconf 2.72. Invocation command line was + + $ $0$ac_configure_args_raw + +_ACEOF +exec 5>>config.log +{ +cat <<_ASUNAME +## --------- ## +## Platform. ## +## --------- ## + +hostname = `(hostname || uname -n) 2>/dev/null | sed 1q` +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown` + +/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown` +/usr/bin/hostinfo = `(/usr/bin/hostinfo) 2>/dev/null || echo unknown` +/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown` +/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown` + +_ASUNAME + +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + printf "%s\n" "PATH: $as_dir" + done +IFS=$as_save_IFS + +} >&5 + +cat >&5 <<_ACEOF + + +## ----------- ## +## Core tests. ## +## ----------- ## + +_ACEOF + + +# Keep a trace of the command line. +# Strip out --no-create and --no-recursion so they do not pile up. +# Strip out --silent because we don't want to record it for future runs. +# Also quote any args containing shell meta-characters. +# Make two passes to allow for proper duplicate-argument suppression. +ac_configure_args= +ac_configure_args0= +ac_configure_args1= +ac_must_keep_next=false +for ac_pass in 1 2 +do + for ac_arg + do + case $ac_arg in + -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil) + continue ;; + *\'*) + ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + case $ac_pass in + 1) as_fn_append ac_configure_args0 " '$ac_arg'" ;; + 2) + as_fn_append ac_configure_args1 " '$ac_arg'" + if test $ac_must_keep_next = true; then + ac_must_keep_next=false # Got value, back to normal. + else + case $ac_arg in + *=* | --config-cache | -C | -disable-* | --disable-* \ + | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ + | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ + | -with-* | --with-* | -without-* | --without-* | --x) + case "$ac_configure_args0 " in + "$ac_configure_args1"*" '$ac_arg' "* ) continue ;; + esac + ;; + -* ) ac_must_keep_next=true ;; + esac + fi + as_fn_append ac_configure_args " '$ac_arg'" + ;; + esac + done +done +{ ac_configure_args0=; unset ac_configure_args0;} +{ ac_configure_args1=; unset ac_configure_args1;} + +# When interrupted or exit'd, cleanup temporary files, and complete +# config.log. We remove comments because anyway the quotes in there +# would cause problems or look ugly. +# WARNING: Use '\'' to represent an apostrophe within the trap. +# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug. +trap 'exit_status=$? + # Sanitize IFS. + IFS=" "" $as_nl" + # Save into config.log some information that might help in debugging. + { + echo + + printf "%s\n" "## ---------------- ## +## Cache variables. ## +## ---------------- ##" + echo + # The following way of writing the cache mishandles newlines in values, +( + for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + (set) 2>&1 | + case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + sed -n \ + "s/'\''/'\''\\\\'\'''\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p" + ;; #( + *) + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) + echo + + printf "%s\n" "## ----------------- ## +## Output variables. ## +## ----------------- ##" + echo + for ac_var in $ac_subst_vars + do + eval ac_val=\$$ac_var + case $ac_val in + *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;; + esac + printf "%s\n" "$ac_var='\''$ac_val'\''" + done | sort + echo + + if test -n "$ac_subst_files"; then + printf "%s\n" "## ------------------- ## +## File substitutions. ## +## ------------------- ##" + echo + for ac_var in $ac_subst_files + do + eval ac_val=\$$ac_var + case $ac_val in + *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;; + esac + printf "%s\n" "$ac_var='\''$ac_val'\''" + done | sort + echo + fi + + if test -s confdefs.h; then + printf "%s\n" "## ----------- ## +## confdefs.h. ## +## ----------- ##" + echo + cat confdefs.h + echo + fi + test "$ac_signal" != 0 && + printf "%s\n" "$as_me: caught signal $ac_signal" + printf "%s\n" "$as_me: exit $exit_status" + } >&5 + rm -f core *.core core.conftest.* && + rm -f -r conftest* confdefs* conf$$* $ac_clean_files && + exit $exit_status +' 0 +for ac_signal in 1 2 13 15; do + trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal +done +ac_signal=0 + +# confdefs.h avoids OS command line length limits that DEFS can exceed. +rm -f -r conftest* confdefs.h + +printf "%s\n" "/* confdefs.h */" > confdefs.h + +# Predefined preprocessor variables. + +printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h + +printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h + +printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h + +printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h + +printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h + +printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h + + +# Let the site file select an alternate cache file if it wants to. +# Prefer an explicitly selected file to automatically selected ones. +if test -n "$CONFIG_SITE"; then + ac_site_files="$CONFIG_SITE" +elif test "x$prefix" != xNONE; then + ac_site_files="$prefix/share/config.site $prefix/etc/config.site" +else + ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site" +fi + +for ac_site_file in $ac_site_files +do + case $ac_site_file in #( + */*) : + ;; #( + *) : + ac_site_file=./$ac_site_file ;; +esac + if test -f "$ac_site_file" && test -r "$ac_site_file"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5 +printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;} + sed 's/^/| /' "$ac_site_file" >&5 + . "$ac_site_file" \ + || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5 +printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;} +as_fn_error $? "failed to load site script $ac_site_file +See 'config.log' for more details" "$LINENO" 5; } + fi +done + +if test -r "$cache_file"; then + # Some versions of bash will fail to source /dev/null (special files + # actually), so we avoid doing that. DJGPP emulates it as a regular file. + if test /dev/null != "$cache_file" && test -f "$cache_file"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5 +printf "%s\n" "$as_me: loading cache $cache_file" >&6;} + case $cache_file in + [\\/]* | ?:[\\/]* ) . "$cache_file";; + *) . "./$cache_file";; + esac + fi +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5 +printf "%s\n" "$as_me: creating cache $cache_file" >&6;} + >$cache_file +fi + +# Test code for whether the C compiler supports C89 (global declarations) +ac_c_conftest_c89_globals=' +/* Does the compiler advertise C89 conformance? + Do not test the value of __STDC__, because some compilers set it to 0 + while being otherwise adequately conformant. */ +#if !defined __STDC__ +# error "Compiler does not advertise C89 conformance" +#endif + +#include +#include +struct stat; +/* Most of the following tests are stolen from RCS 5.7 src/conf.sh. */ +struct buf { int x; }; +struct buf * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (char **p, int i) +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* C89 style stringification. */ +#define noexpand_stringify(a) #a +const char *stringified = noexpand_stringify(arbitrary+token=sequence); + +/* C89 style token pasting. Exercises some of the corner cases that + e.g. old MSVC gets wrong, but not very hard. */ +#define noexpand_concat(a,b) a##b +#define expand_concat(a,b) noexpand_concat(a,b) +extern int vA; +extern int vbee; +#define aye A +#define bee B +int *pvA = &expand_concat(v,aye); +int *pvbee = &noexpand_concat(v,bee); + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not \xHH hex character constants. + These do not provoke an error unfortunately, instead are silently treated + as an "x". The following induces an error, until -std is added to get + proper ANSI mode. Curiously \x00 != x always comes out true, for an + array size at least. It is necessary to write \x00 == 0 to get something + that is true only with -std. */ +int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) '\''x'\'' +int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int), + int, int);' + +# Test code for whether the C compiler supports C89 (body of main). +ac_c_conftest_c89_main=' +ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]); +' + +# Test code for whether the C compiler supports C99 (global declarations) +ac_c_conftest_c99_globals=' +/* Does the compiler advertise C99 conformance? */ +#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L +# error "Compiler does not advertise C99 conformance" +#endif + +// See if C++-style comments work. + +#include +extern int puts (const char *); +extern int printf (const char *, ...); +extern int dprintf (int, const char *, ...); +extern void *malloc (size_t); +extern void free (void *); + +// Check varargs macros. These examples are taken from C99 6.10.3.5. +// dprintf is used instead of fprintf to avoid needing to declare +// FILE and stderr. +#define debug(...) dprintf (2, __VA_ARGS__) +#define showlist(...) puts (#__VA_ARGS__) +#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) +static void +test_varargs_macros (void) +{ + int x = 1234; + int y = 5678; + debug ("Flag"); + debug ("X = %d\n", x); + showlist (The first, second, and third items.); + report (x>y, "x is %d but y is %d", x, y); +} + +// Check long long types. +#define BIG64 18446744073709551615ull +#define BIG32 4294967295ul +#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) +#if !BIG_OK + #error "your preprocessor is broken" +#endif +#if BIG_OK +#else + #error "your preprocessor is broken" +#endif +static long long int bignum = -9223372036854775807LL; +static unsigned long long int ubignum = BIG64; + +struct incomplete_array +{ + int datasize; + double data[]; +}; + +struct named_init { + int number; + const wchar_t *name; + double average; +}; + +typedef const char *ccp; + +static inline int +test_restrict (ccp restrict text) +{ + // Iterate through items via the restricted pointer. + // Also check for declarations in for loops. + for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i) + continue; + return 0; +} + +// Check varargs and va_copy. +static bool +test_varargs (const char *format, ...) +{ + va_list args; + va_start (args, format); + va_list args_copy; + va_copy (args_copy, args); + + const char *str = ""; + int number = 0; + float fnumber = 0; + + while (*format) + { + switch (*format++) + { + case '\''s'\'': // string + str = va_arg (args_copy, const char *); + break; + case '\''d'\'': // int + number = va_arg (args_copy, int); + break; + case '\''f'\'': // float + fnumber = va_arg (args_copy, double); + break; + default: + break; + } + } + va_end (args_copy); + va_end (args); + + return *str && number && fnumber; +} +' + +# Test code for whether the C compiler supports C99 (body of main). +ac_c_conftest_c99_main=' + // Check bool. + _Bool success = false; + success |= (argc != 0); + + // Check restrict. + if (test_restrict ("String literal") == 0) + success = true; + char *restrict newvar = "Another string"; + + // Check varargs. + success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234); + test_varargs_macros (); + + // Check flexible array members. + struct incomplete_array *ia = + malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); + ia->datasize = 10; + for (int i = 0; i < ia->datasize; ++i) + ia->data[i] = i * 1.234; + // Work around memory leak warnings. + free (ia); + + // Check named initializers. + struct named_init ni = { + .number = 34, + .name = L"Test wide string", + .average = 543.34343, + }; + + ni.number = 58; + + int dynamic_array[ni.number]; + dynamic_array[0] = argv[0][0]; + dynamic_array[ni.number - 1] = 543; + + // work around unused variable warnings + ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\'' + || dynamic_array[ni.number - 1] != 543); +' + +# Test code for whether the C compiler supports C11 (global declarations) +ac_c_conftest_c11_globals=' +/* Does the compiler advertise C11 conformance? */ +#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L +# error "Compiler does not advertise C11 conformance" +#endif + +// Check _Alignas. +char _Alignas (double) aligned_as_double; +char _Alignas (0) no_special_alignment; +extern char aligned_as_int; +char _Alignas (0) _Alignas (int) aligned_as_int; + +// Check _Alignof. +enum +{ + int_alignment = _Alignof (int), + int_array_alignment = _Alignof (int[100]), + char_alignment = _Alignof (char) +}; +_Static_assert (0 < -_Alignof (int), "_Alignof is signed"); + +// Check _Noreturn. +int _Noreturn does_not_return (void) { for (;;) continue; } + +// Check _Static_assert. +struct test_static_assert +{ + int x; + _Static_assert (sizeof (int) <= sizeof (long int), + "_Static_assert does not work in struct"); + long int y; +}; + +// Check UTF-8 literals. +#define u8 syntax error! +char const utf8_literal[] = u8"happens to be ASCII" "another string"; + +// Check duplicate typedefs. +typedef long *long_ptr; +typedef long int *long_ptr; +typedef long_ptr long_ptr; + +// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1. +struct anonymous +{ + union { + struct { int i; int j; }; + struct { int k; long int l; } w; + }; + int m; +} v1; +' + +# Test code for whether the C compiler supports C11 (body of main). +ac_c_conftest_c11_main=' + _Static_assert ((offsetof (struct anonymous, i) + == offsetof (struct anonymous, w.k)), + "Anonymous union alignment botch"); + v1.i = 2; + v1.w.k = 5; + ok |= v1.i != 5; +' + +# Test code for whether the C compiler supports C11 (complete). +ac_c_conftest_c11_program="${ac_c_conftest_c89_globals} +${ac_c_conftest_c99_globals} +${ac_c_conftest_c11_globals} + +int +main (int argc, char **argv) +{ + int ok = 0; + ${ac_c_conftest_c89_main} + ${ac_c_conftest_c99_main} + ${ac_c_conftest_c11_main} + return ok; +} +" + +# Test code for whether the C compiler supports C99 (complete). +ac_c_conftest_c99_program="${ac_c_conftest_c89_globals} +${ac_c_conftest_c99_globals} + +int +main (int argc, char **argv) +{ + int ok = 0; + ${ac_c_conftest_c89_main} + ${ac_c_conftest_c99_main} + return ok; +} +" + +# Test code for whether the C compiler supports C89 (complete). +ac_c_conftest_c89_program="${ac_c_conftest_c89_globals} + +int +main (int argc, char **argv) +{ + int ok = 0; + ${ac_c_conftest_c89_main} + return ok; +} +" + +# Test code for whether the C++ compiler supports C++98 (global declarations) +ac_cxx_conftest_cxx98_globals=' +// Does the compiler advertise C++98 conformance? +#if !defined __cplusplus || __cplusplus < 199711L +# error "Compiler does not advertise C++98 conformance" +#endif + +// These inclusions are to reject old compilers that +// lack the unsuffixed header files. +#include +#include + +// and are *not* freestanding headers in C++98. +extern void assert (int); +namespace std { + extern int strcmp (const char *, const char *); +} + +// Namespaces, exceptions, and templates were all added after "C++ 2.0". +using std::exception; +using std::strcmp; + +namespace { + +void test_exception_syntax() +{ + try { + throw "test"; + } catch (const char *s) { + // Extra parentheses suppress a warning when building autoconf itself, + // due to lint rules shared with more typical C programs. + assert (!(strcmp) (s, "test")); + } +} + +template struct test_template +{ + T const val; + explicit test_template(T t) : val(t) {} + template T add(U u) { return static_cast(u) + val; } +}; + +} // anonymous namespace +' + +# Test code for whether the C++ compiler supports C++98 (body of main) +ac_cxx_conftest_cxx98_main=' + assert (argc); + assert (! argv[0]); +{ + test_exception_syntax (); + test_template tt (2.0); + assert (tt.add (4) == 6.0); + assert (true && !false); +} +' + +# Test code for whether the C++ compiler supports C++11 (global declarations) +ac_cxx_conftest_cxx11_globals=' +// Does the compiler advertise C++ 2011 conformance? +#if !defined __cplusplus || __cplusplus < 201103L +# error "Compiler does not advertise C++11 conformance" +#endif + +namespace cxx11test +{ + constexpr int get_val() { return 20; } + + struct testinit + { + int i; + double d; + }; + + class delegate + { + public: + delegate(int n) : n(n) {} + delegate(): delegate(2354) {} + + virtual int getval() { return this->n; }; + protected: + int n; + }; + + class overridden : public delegate + { + public: + overridden(int n): delegate(n) {} + virtual int getval() override final { return this->n * 2; } + }; + + class nocopy + { + public: + nocopy(int i): i(i) {} + nocopy() = default; + nocopy(const nocopy&) = delete; + nocopy & operator=(const nocopy&) = delete; + private: + int i; + }; + + // for testing lambda expressions + template Ret eval(Fn f, Ret v) + { + return f(v); + } + + // for testing variadic templates and trailing return types + template auto sum(V first) -> V + { + return first; + } + template auto sum(V first, Args... rest) -> V + { + return first + sum(rest...); + } +} +' + +# Test code for whether the C++ compiler supports C++11 (body of main) +ac_cxx_conftest_cxx11_main=' +{ + // Test auto and decltype + auto a1 = 6538; + auto a2 = 48573953.4; + auto a3 = "String literal"; + + int total = 0; + for (auto i = a3; *i; ++i) { total += *i; } + + decltype(a2) a4 = 34895.034; +} +{ + // Test constexpr + short sa[cxx11test::get_val()] = { 0 }; +} +{ + // Test initializer lists + cxx11test::testinit il = { 4323, 435234.23544 }; +} +{ + // Test range-based for + int array[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, + 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; + for (auto &x : array) { x += 23; } +} +{ + // Test lambda expressions + using cxx11test::eval; + assert (eval ([](int x) { return x*2; }, 21) == 42); + double d = 2.0; + assert (eval ([&](double x) { return d += x; }, 3.0) == 5.0); + assert (d == 5.0); + assert (eval ([=](double x) mutable { return d += x; }, 4.0) == 9.0); + assert (d == 5.0); +} +{ + // Test use of variadic templates + using cxx11test::sum; + auto a = sum(1); + auto b = sum(1, 2); + auto c = sum(1.0, 2.0, 3.0); +} +{ + // Test constructor delegation + cxx11test::delegate d1; + cxx11test::delegate d2(); + cxx11test::delegate d3(45); +} +{ + // Test override and final + cxx11test::overridden o1(55464); +} +{ + // Test nullptr + char *c = nullptr; +} +{ + // Test template brackets + test_template<::test_template> v(test_template(12)); +} +{ + // Unicode literals + char const *utf8 = u8"UTF-8 string \u2500"; + char16_t const *utf16 = u"UTF-8 string \u2500"; + char32_t const *utf32 = U"UTF-32 string \u2500"; +} +' + +# Test code for whether the C compiler supports C++11 (complete). +ac_cxx_conftest_cxx11_program="${ac_cxx_conftest_cxx98_globals} +${ac_cxx_conftest_cxx11_globals} + +int +main (int argc, char **argv) +{ + int ok = 0; + ${ac_cxx_conftest_cxx98_main} + ${ac_cxx_conftest_cxx11_main} + return ok; +} +" + +# Test code for whether the C compiler supports C++98 (complete). +ac_cxx_conftest_cxx98_program="${ac_cxx_conftest_cxx98_globals} +int +main (int argc, char **argv) +{ + int ok = 0; + ${ac_cxx_conftest_cxx98_main} + return ok; +} +" + +as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H" +as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H" +as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H" +as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H" +as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H" +as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H" +as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H" +as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H" +as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H" +# Check that the precious variables saved in the cache have kept the same +# value. +ac_cache_corrupted=false +for ac_var in $ac_precious_vars; do + eval ac_old_set=\$ac_cv_env_${ac_var}_set + eval ac_new_set=\$ac_env_${ac_var}_set + eval ac_old_val=\$ac_cv_env_${ac_var}_value + eval ac_new_val=\$ac_env_${ac_var}_value + case $ac_old_set,$ac_new_set in + set,) + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5 +printf "%s\n" "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;} + ac_cache_corrupted=: ;; + ,set) + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5 +printf "%s\n" "$as_me: error: '$ac_var' was not set in the previous run" >&2;} + ac_cache_corrupted=: ;; + ,);; + *) + if test "x$ac_old_val" != "x$ac_new_val"; then + # differences in whitespace do not lead to failure. + ac_old_val_w=`echo x $ac_old_val` + ac_new_val_w=`echo x $ac_new_val` + if test "$ac_old_val_w" != "$ac_new_val_w"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5 +printf "%s\n" "$as_me: error: '$ac_var' has changed since the previous run:" >&2;} + ac_cache_corrupted=: + else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5 +printf "%s\n" "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;} + eval $ac_var=\$ac_old_val + fi + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: former value: '$ac_old_val'" >&5 +printf "%s\n" "$as_me: former value: '$ac_old_val'" >&2;} + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: current value: '$ac_new_val'" >&5 +printf "%s\n" "$as_me: current value: '$ac_new_val'" >&2;} + fi;; + esac + # Pass precious variables to config.status. + if test "$ac_new_set" = set; then + case $ac_new_val in + *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;; + *) ac_arg=$ac_var=$ac_new_val ;; + esac + case " $ac_configure_args " in + *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy. + *) as_fn_append ac_configure_args " '$ac_arg'" ;; + esac + fi +done +if $ac_cache_corrupted; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5 +printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;} + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5 +printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;} + as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file' + and start over" "$LINENO" 5 +fi +## -------------------- ## +## Main body of script. ## +## -------------------- ## + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + +ac_config_headers="$ac_config_headers gen/pkgconfig.h:src/pkgconfig.h.in" + + + + +ac_config_commands="$ac_config_commands src/digraphs-config.h" + + + + + + + + + + + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +printf "%s\n" "$CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_ac_ct_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +printf "%s\n" "$ac_ct_CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +printf "%s\n" "$CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@" + fi +fi +fi ;; +esac +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +printf "%s\n" "$CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +printf "%s\n" "$CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_ac_ct_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +printf "%s\n" "$ac_ct_CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}clang", so it can be a program name with args. +set dummy ${ac_tool_prefix}clang; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}clang" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +printf "%s\n" "$CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "clang", so it can be a program name with args. +set dummy clang; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_ac_ct_CC+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="clang" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +printf "%s\n" "$ac_ct_CC" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +fi + + +test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5 +printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See 'config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion -version; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +printf "%s\n" "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +printf %s "checking whether the C compiler works... " >&6; } +ac_link_default=`printf "%s\n" "$ac_link" | sed 's/ -o *conftest[^ ]*//'` + +# The possible output files: +ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*" + +ac_rmfiles= +for ac_file in $ac_files +do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + * ) ac_rmfiles="$ac_rmfiles $ac_file";; + esac +done +rm -f $ac_rmfiles + +if { { ac_try="$ac_link_default" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +printf "%s\n" "$ac_try_echo"; } >&5 + (eval "$ac_link_default") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +then : + # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'. +# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no' +# in a Makefile. We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test ${ac_cv_exeext+y} && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an '-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else case e in #( + e) ac_file='' ;; +esac +fi +if test -z "$ac_file" +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +printf "%s\n" "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5 +printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See 'config.log' for more details" "$LINENO" 5; } +else case e in #( + e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +printf "%s\n" "yes" >&6; } ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +printf %s "checking for C compiler default output file name... " >&6; } +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5 +printf "%s\n" "$ac_file" >&6; } +ac_exeext=$ac_cv_exeext + +rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out +ac_clean_files=$ac_clean_files_save +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5 +printf %s "checking for suffix of executables... " >&6; } +if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +printf "%s\n" "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +then : + # If both 'conftest.exe' and 'conftest' are 'present' (well, observable) +# catch 'conftest.exe'. For instance with Cygwin, 'ls conftest' will +# work properly (i.e., refer to 'conftest.exe'), while it won't with +# 'rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else case e in #( + e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5 +printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of executables: cannot compile and link +See 'config.log' for more details" "$LINENO" 5; } ;; +esac +fi +rm -f conftest conftest$ac_cv_exeext +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5 +printf "%s\n" "$ac_cv_exeext" >&6; } + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main (void) +{ +FILE *f = fopen ("conftest.out", "w"); + if (!f) + return 1; + return ferror (f) || fclose (f) != 0; + + ; + return 0; +} +_ACEOF +ac_clean_files="$ac_clean_files conftest.out" +# Check that the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5 +printf %s "checking whether we are cross compiling... " >&6; } +if test "$cross_compiling" != yes; then + { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +printf "%s\n" "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + if { ac_try='./conftest$ac_cv_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +printf "%s\n" "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5 +printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;} +as_fn_error 77 "cannot run C compiled programs. +If you meant to cross compile, use '--host'. +See 'config.log' for more details" "$LINENO" 5; } + fi + fi +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5 +printf "%s\n" "$cross_compiling" >&6; } + +rm -f conftest.$ac_ext conftest$ac_cv_exeext \ + conftest.o conftest.obj conftest.out +ac_clean_files=$ac_clean_files_save +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5 +printf %s "checking for suffix of object files... " >&6; } +if test ${ac_cv_objext+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { { ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +printf "%s\n" "$ac_try_echo"; } >&5 + (eval "$ac_compile") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +then : + for ac_file in conftest.o conftest.obj conftest.*; do + test -f "$ac_file" || continue; + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else case e in #( + e) printf "%s\n" "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5 +printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;} +as_fn_error $? "cannot compute suffix of object files: cannot compile +See 'config.log' for more details" "$LINENO" 5; } ;; +esac +fi +rm -f conftest.$ac_cv_objext conftest.$ac_ext ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5 +printf "%s\n" "$ac_cv_objext" >&6; } +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C" >&5 +printf %s "checking whether the compiler supports GNU C... " >&6; } +if test ${ac_cv_c_compiler_gnu+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + ac_compiler_gnu=yes +else case e in #( + e) ac_compiler_gnu=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5 +printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; } +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +if test $ac_compiler_gnu = yes; then + GCC=yes +else + GCC= +fi +ac_test_CFLAGS=${CFLAGS+y} +ac_save_CFLAGS=$CFLAGS +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5 +printf %s "checking whether $CC accepts -g... " >&6; } +if test ${ac_cv_prog_cc_g+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_save_c_werror_flag=$ac_c_werror_flag + ac_c_werror_flag=yes + ac_cv_prog_cc_g=no + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + ac_cv_prog_cc_g=yes +else case e in #( + e) CFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + +else case e in #( + e) ac_c_werror_flag=$ac_save_c_werror_flag + CFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + ac_cv_prog_cc_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + ac_c_werror_flag=$ac_save_c_werror_flag ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5 +printf "%s\n" "$ac_cv_prog_cc_g" >&6; } +if test $ac_test_CFLAGS; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +ac_prog_cc_stdc=no +if test x$ac_prog_cc_stdc = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C11 features" >&5 +printf %s "checking for $CC option to enable C11 features... " >&6; } +if test ${ac_cv_prog_cc_c11+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_cv_prog_cc_c11=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_c_conftest_c11_program +_ACEOF +for ac_arg in '' -std=gnu11 +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO" +then : + ac_cv_prog_cc_c11=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam + test "x$ac_cv_prog_cc_c11" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC ;; +esac +fi + +if test "x$ac_cv_prog_cc_c11" = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +printf "%s\n" "unsupported" >&6; } +else case e in #( + e) if test "x$ac_cv_prog_cc_c11" = x +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +printf "%s\n" "none needed" >&6; } +else case e in #( + e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5 +printf "%s\n" "$ac_cv_prog_cc_c11" >&6; } + CC="$CC $ac_cv_prog_cc_c11" ;; +esac +fi + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11 + ac_prog_cc_stdc=c11 ;; +esac +fi +fi +if test x$ac_prog_cc_stdc = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C99 features" >&5 +printf %s "checking for $CC option to enable C99 features... " >&6; } +if test ${ac_cv_prog_cc_c99+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_cv_prog_cc_c99=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_c_conftest_c99_program +_ACEOF +for ac_arg in '' -std=gnu99 -std=c99 -c99 -qlanglvl=extc1x -qlanglvl=extc99 -AC99 -D_STDC_C99= +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO" +then : + ac_cv_prog_cc_c99=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam + test "x$ac_cv_prog_cc_c99" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC ;; +esac +fi + +if test "x$ac_cv_prog_cc_c99" = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +printf "%s\n" "unsupported" >&6; } +else case e in #( + e) if test "x$ac_cv_prog_cc_c99" = x +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +printf "%s\n" "none needed" >&6; } +else case e in #( + e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5 +printf "%s\n" "$ac_cv_prog_cc_c99" >&6; } + CC="$CC $ac_cv_prog_cc_c99" ;; +esac +fi + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99 + ac_prog_cc_stdc=c99 ;; +esac +fi +fi +if test x$ac_prog_cc_stdc = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC option to enable C89 features" >&5 +printf %s "checking for $CC option to enable C89 features... " >&6; } +if test ${ac_cv_prog_cc_c89+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_cv_prog_cc_c89=no +ac_save_CC=$CC +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_c_conftest_c89_program +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO" +then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC ;; +esac +fi + +if test "x$ac_cv_prog_cc_c89" = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +printf "%s\n" "unsupported" >&6; } +else case e in #( + e) if test "x$ac_cv_prog_cc_c89" = x +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +printf "%s\n" "none needed" >&6; } +else case e in #( + e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +printf "%s\n" "$ac_cv_prog_cc_c89" >&6; } + CC="$CC $ac_cv_prog_cc_c89" ;; +esac +fi + ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89 + ac_prog_cc_stdc=c89 ;; +esac +fi +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + + + + + +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu +if test -z "$CXX"; then + if test -n "$CCC"; then + CXX=$CCC + else + if test -n "$ac_tool_prefix"; then + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++ + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_CXX+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$CXX"; then + ac_cv_prog_CXX="$CXX" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_CXX="$ac_tool_prefix$ac_prog" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +CXX=$ac_cv_prog_CXX +if test -n "$CXX"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5 +printf "%s\n" "$CXX" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + + test -n "$CXX" && break + done +fi +if test -z "$CXX"; then + ac_ct_CXX=$CXX + for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++ +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +printf %s "checking for $ac_word... " >&6; } +if test ${ac_cv_prog_ac_ct_CXX+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if test -n "$ac_ct_CXX"; then + ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CXX="$ac_prog" + printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi ;; +esac +fi +ac_ct_CXX=$ac_cv_prog_ac_ct_CXX +if test -n "$ac_ct_CXX"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5 +printf "%s\n" "$ac_ct_CXX" >&6; } +else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 +printf "%s\n" "no" >&6; } +fi + + + test -n "$ac_ct_CXX" && break +done + + if test "x$ac_ct_CXX" = x; then + CXX="g++" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CXX=$ac_ct_CXX + fi +fi + + fi +fi +# Provide some information about the compiler. +printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +printf "%s\n" "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports GNU C++" >&5 +printf %s "checking whether the compiler supports GNU C++... " >&6; } +if test ${ac_cv_cxx_compiler_gnu+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + ac_compiler_gnu=yes +else case e in #( + e) ac_compiler_gnu=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext +ac_cv_cxx_compiler_gnu=$ac_compiler_gnu + ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5 +printf "%s\n" "$ac_cv_cxx_compiler_gnu" >&6; } +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + +if test $ac_compiler_gnu = yes; then + GXX=yes +else + GXX= +fi +ac_test_CXXFLAGS=${CXXFLAGS+y} +ac_save_CXXFLAGS=$CXXFLAGS +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5 +printf %s "checking whether $CXX accepts -g... " >&6; } +if test ${ac_cv_prog_cxx_g+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_save_cxx_werror_flag=$ac_cxx_werror_flag + ac_cxx_werror_flag=yes + ac_cv_prog_cxx_g=no + CXXFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + ac_cv_prog_cxx_g=yes +else case e in #( + e) CXXFLAGS="" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + +else case e in #( + e) ac_cxx_werror_flag=$ac_save_cxx_werror_flag + CXXFLAGS="-g" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + ac_cv_prog_cxx_g=yes +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + ac_cxx_werror_flag=$ac_save_cxx_werror_flag ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5 +printf "%s\n" "$ac_cv_prog_cxx_g" >&6; } +if test $ac_test_CXXFLAGS; then + CXXFLAGS=$ac_save_CXXFLAGS +elif test $ac_cv_prog_cxx_g = yes; then + if test "$GXX" = yes; then + CXXFLAGS="-g -O2" + else + CXXFLAGS="-g" + fi +else + if test "$GXX" = yes; then + CXXFLAGS="-O2" + else + CXXFLAGS= + fi +fi +ac_prog_cxx_stdcxx=no +if test x$ac_prog_cxx_stdcxx = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++11 features" >&5 +printf %s "checking for $CXX option to enable C++11 features... " >&6; } +if test ${ac_cv_prog_cxx_cxx11+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_cv_prog_cxx_cxx11=no +ac_save_CXX=$CXX +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_cxx_conftest_cxx11_program +_ACEOF +for ac_arg in '' -std=gnu++11 -std=gnu++0x -std=c++11 -std=c++0x -qlanglvl=extended0x -AA +do + CXX="$ac_save_CXX $ac_arg" + if ac_fn_cxx_try_compile "$LINENO" +then : + ac_cv_prog_cxx_cxx11=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam + test "x$ac_cv_prog_cxx_cxx11" != "xno" && break +done +rm -f conftest.$ac_ext +CXX=$ac_save_CXX ;; +esac +fi + +if test "x$ac_cv_prog_cxx_cxx11" = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +printf "%s\n" "unsupported" >&6; } +else case e in #( + e) if test "x$ac_cv_prog_cxx_cxx11" = x +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +printf "%s\n" "none needed" >&6; } +else case e in #( + e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5 +printf "%s\n" "$ac_cv_prog_cxx_cxx11" >&6; } + CXX="$CXX $ac_cv_prog_cxx_cxx11" ;; +esac +fi + ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11 + ac_prog_cxx_stdcxx=cxx11 ;; +esac +fi +fi +if test x$ac_prog_cxx_stdcxx = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CXX option to enable C++98 features" >&5 +printf %s "checking for $CXX option to enable C++98 features... " >&6; } +if test ${ac_cv_prog_cxx_cxx98+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_cv_prog_cxx_cxx98=no +ac_save_CXX=$CXX +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_cxx_conftest_cxx98_program +_ACEOF +for ac_arg in '' -std=gnu++98 -std=c++98 -qlanglvl=extended -AA +do + CXX="$ac_save_CXX $ac_arg" + if ac_fn_cxx_try_compile "$LINENO" +then : + ac_cv_prog_cxx_cxx98=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam + test "x$ac_cv_prog_cxx_cxx98" != "xno" && break +done +rm -f conftest.$ac_ext +CXX=$ac_save_CXX ;; +esac +fi + +if test "x$ac_cv_prog_cxx_cxx98" = xno +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +printf "%s\n" "unsupported" >&6; } +else case e in #( + e) if test "x$ac_cv_prog_cxx_cxx98" = x +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +printf "%s\n" "none needed" >&6; } +else case e in #( + e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5 +printf "%s\n" "$ac_cv_prog_cxx_cxx98" >&6; } + CXX="$CXX $ac_cv_prog_cxx_cxx98" ;; +esac +fi + ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98 + ac_prog_cxx_stdcxx=cxx98 ;; +esac +fi +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + + + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + # Make sure CDPATH is portably set to a sensible value + CDPATH=${ZSH_VERSION+.}: + + GAP_CPPFLAGS="" + + ###################################### + # Find the GAP root directory by + # checking for the sysinfo.gap file + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GAP root directory" >&5 +printf %s "checking for GAP root directory... " >&6; } + GAPROOT="../.." + + # Allow the user to specify the location of GAP + +# Check whether --with-gaproot was given. +if test ${with_gaproot+y} +then : + withval=$with_gaproot; GAPROOT="$withval" +fi + + + # Convert the path to absolute + GAPROOT=`cd $GAPROOT > /dev/null 2>&1 && pwd` + + if test -e ${GAPROOT}/sysinfo.gap; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${GAPROOT}" >&5 +printf "%s\n" "${GAPROOT}" >&6; } + else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: Not found" >&5 +printf "%s\n" "Not found" >&6; } + + echo "" + echo "********************************************************************" + echo " ERROR" + echo "" + echo " Cannot find your GAP installation. Please specify the location of" + echo " GAP's root directory using --with-gaproot=" + echo "" + echo " The GAP root directory (as far as this package is concerned) is" + echo " the one containing the file sysinfo.gap" + echo "********************************************************************" + echo "" + + as_fn_error $? "Unable to find GAP root directory" "$LINENO" 5 + fi + + ##################################### + # Now find the architecture + + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for GAP architecture" >&5 +printf %s "checking for GAP architecture... " >&6; } + GAPARCH="Unknown" + . $GAPROOT/sysinfo.gap + if test "x$GAParch" != "x"; then + GAPARCH=$GAParch + fi + + if test "x$GAPARCH" = "xUnknown" ; then + echo "" + echo "********************************************************************" + echo " ERROR" + echo "" + echo " Found a GAP installation at $GAPROOT but could not find" + echo " information about GAP's architecture in the file" + echo " ${GAPROOT}/sysinfo.gap ." + echo " This file should be present: please check your GAP installation." + echo "********************************************************************" + echo "" + + as_fn_error $? "Unable to find plausible GAParch information." "$LINENO" 5 + fi + + # require GAP >= 4.9 + if test "x$GAP_CPPFLAGS" = x; then + echo "" + echo "********************************************************************" + echo " ERROR" + echo "" + echo " This version of GAP is too old and not supported by this package." + echo "********************************************************************" + echo "" + as_fn_error $? "No GAP_CPPFLAGS is given" "$LINENO" 5 + fi + + # compatibility with GAP 4.9 (not needed in GAP >= 4.10) + GAP_CPPFLAGS="$GAP_CPPFLAGS -I${GAP_LIB_DIR}/src" + + + + + + + + + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + + +# Check whether --enable-debug was given. +if test ${enable_debug+y} +then : + enableval=$enable_debug; +printf "%s\n" "#define KERNEL_DEBUG 1" >>confdefs.h + +else case e in #( + e) enable_debug=no + ;; +esac +fi + +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable debug mode" >&5 +printf %s "checking whether to enable debug mode... " >&6; } +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_debug" >&5 +printf "%s\n" "$enable_debug" >&6; } +KERNEL_DEBUG=$enable_debug + + +# Check whether --enable-stats was given. +if test ${enable_stats+y} +then : + enableval=$enable_stats; +printf "%s\n" "#define ENABLE_STATS 1" >>confdefs.h + +else case e in #( + e) enable_stats=no + ;; +esac +fi + +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable stats mode" >&5 +printf %s "checking whether to enable stats mode... " >&6; } +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_stats" >&5 +printf "%s\n" "$enable_stats" >&6; } +ENABLE_STATS=$enable_debug + + +# Check whether --enable-code-coverage was given. +if test ${enable_code_coverage+y} +then : + enableval=$enable_code_coverage; +else case e in #( + e) enable_code_coverage=no ;; +esac +fi + +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to build with code coverage support" >&5 +printf %s "checking whether to build with code coverage support... " >&6; } +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_code_coverage" >&5 +printf "%s\n" "$enable_code_coverage" >&6; } + +if test "$enable_code_coverage" = "yes" +then : + + CODE_COVERAGE_CFLAGS="-DNDEBUG -O0 -g --coverage" + CODE_COVERAGE_CXXFLAGS="-DNDEBUG -O0 -g --coverage" + CODE_COVERAGE_LDFLAGS="--coverage" + + + + +fi + + +# Enable compiler warnings + +# Check whether --enable-compile-warnings was given. +if test ${enable_compile_warnings+y} +then : + enableval=$enable_compile_warnings; enable_compile_warnings=yes +else case e in #( + e) enable_compile_warnings=no ;; +esac +fi + +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether enable compiler warnings" >&5 +printf %s "checking whether enable compiler warnings... " >&6; } +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $enable_compile_warnings" >&5 +printf "%s\n" "$enable_compile_warnings" >&6; } + +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5 +printf %s "checking for a sed that does not truncate output... " >&6; } +if test ${ac_cv_path_SED+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ + for ac_i in 1 2 3 4 5 6 7; do + ac_script="$ac_script$as_nl$ac_script" + done + echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed + { ac_script=; unset ac_script;} + if test -z "$SED"; then + ac_path_SED_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + for ac_prog in sed gsed + do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_SED="$as_dir$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_SED" || continue +# Check for GNU ac_path_SED and select it if it is found. + # Check for GNU $ac_path_SED +case `"$ac_path_SED" --version 2>&1` in #( +*GNU*) + ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;; +#( +*) + ac_count=0 + printf %s 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + printf "%s\n" '' >> "conftest.nl" + "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_SED_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_SED="$ac_path_SED" + ac_path_SED_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_SED_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_SED"; then + as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5 + fi +else + ac_cv_path_SED=$SED +fi + ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5 +printf "%s\n" "$ac_cv_path_SED" >&6; } + SED="$ac_cv_path_SED" + rm -f conftest.sed + + +if test "x$enable_compile_warnings" != "xno" +then : + ax_enable_compile_warnings=yes + + + + + + + + + + # Variable names + + + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + + # Always pass -Werror=unknown-warning-option to get Clang to fail on bad + # flags, otherwise they are always appended to the warn_cxxflags variable, + # and Clang warns on them for every compilation unit. + # If this is passed to GCC, it will explode, so the flag must be enabled + # conditionally. + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -Werror=unknown-warning-option" >&5 +printf %s "checking whether C++ compiler accepts -Werror=unknown-warning-option... " >&6; } +if test ${ax_cv_check_cxxflags___Werror_unknown_warning_option+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CXXFLAGS + CXXFLAGS="$CXXFLAGS -Werror=unknown-warning-option" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + ax_cv_check_cxxflags___Werror_unknown_warning_option=yes +else case e in #( + e) ax_cv_check_cxxflags___Werror_unknown_warning_option=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CXXFLAGS=$ax_check_save_flags ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags___Werror_unknown_warning_option" >&5 +printf "%s\n" "$ax_cv_check_cxxflags___Werror_unknown_warning_option" >&6; } +if test "x$ax_cv_check_cxxflags___Werror_unknown_warning_option" = xyes +then : + + ax_compiler_flags_test="-Werror=unknown-warning-option" + +else case e in #( + e) + ax_compiler_flags_test="" + ;; +esac +fi + + + # Check that -Wno-suggest-attribute=format is supported + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts -Wno-suggest-attribute=format" >&5 +printf %s "checking whether C++ compiler accepts -Wno-suggest-attribute=format... " >&6; } +if test ${ax_cv_check_cxxflags___Wno_suggest_attribute_format+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CXXFLAGS + CXXFLAGS="$CXXFLAGS -Wno-suggest-attribute=format" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + ax_cv_check_cxxflags___Wno_suggest_attribute_format=yes +else case e in #( + e) ax_cv_check_cxxflags___Wno_suggest_attribute_format=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CXXFLAGS=$ax_check_save_flags ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cxxflags___Wno_suggest_attribute_format" >&5 +printf "%s\n" "$ax_cv_check_cxxflags___Wno_suggest_attribute_format" >&6; } +if test "x$ax_cv_check_cxxflags___Wno_suggest_attribute_format" = xyes +then : + + ax_compiler_no_suggest_attribute_flags="-Wno-suggest-attribute=format" + +else case e in #( + e) + ax_compiler_no_suggest_attribute_flags="" + ;; +esac +fi + + + # Base flags + + + + +for flag in -fno-strict-aliasing -pedantic -Wold-style-cast ; do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cxxflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts $flag" >&5 +printf %s "checking whether C++ compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CXXFLAGS + CXXFLAGS="$CXXFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CXXFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CXXFLAGS+y} +then : + + case " $WARNING_CXXFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS already contains \$flag"; } >&5 + (: WARNING_CXXFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CXXFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CXXFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + + if test "$ax_enable_compile_warnings" != "no" +then : + + # "yes" flags + + + + +for flag in -Wall -Wextra -Wundef -Wwrite-strings -Wpointer-arith -Wmissing-declarations -Wredundant-decls -Wno-unused-parameter -Wno-missing-field-initializers -Wformat=2 -Wcast-align -Wformat-nonliteral -Wformat-security -Wsign-compare -Wstrict-aliasing -Wshadow -Winline -Wpacked -Wmissing-format-attribute -Wmissing-noreturn -Winit-self -Wredundant-decls -Wmissing-include-dirs -Wunused-but-set-variable -Warray-bounds -Wreturn-type -Wno-overloaded-virtual -Wswitch-enum -Wswitch-default ; do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cxxflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts $flag" >&5 +printf %s "checking whether C++ compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CXXFLAGS + CXXFLAGS="$CXXFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CXXFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CXXFLAGS+y} +then : + + case " $WARNING_CXXFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS already contains \$flag"; } >&5 + (: WARNING_CXXFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CXXFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CXXFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + +fi + if test "$ax_enable_compile_warnings" = "error" +then : + + # "error" flags; -Werror has to be appended unconditionally because + # it's not possible to test for + # + # suggest-attribute=format is disabled because it gives too many false + # positives + +if test ${WARNING_CXXFLAGS+y} +then : + + case " $WARNING_CXXFLAGS " in #( + *" -Werror "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS already contains -Werror"; } >&5 + (: WARNING_CXXFLAGS already contains -Werror) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CXXFLAGS " -Werror" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CXXFLAGS=-Werror + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + + + + + + +for flag in $ax_compiler_no_suggest_attribute_flags ; do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cxxflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts $flag" >&5 +printf %s "checking whether C++ compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CXXFLAGS + CXXFLAGS="$CXXFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CXXFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CXXFLAGS+y} +then : + + case " $WARNING_CXXFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS already contains \$flag"; } >&5 + (: WARNING_CXXFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CXXFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CXXFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + +fi + + # In the flags below, when disabling specific flags, always add *both* + # -Wno-foo and -Wno-error=foo. This fixes the situation where (for example) + # we enable -Werror, disable a flag, and a build bot passes CXXFLAGS=-Wall, + # which effectively turns that flag back on again as an error. + for flag in $WARNING_CXXFLAGS; do + case $flag in #( + -Wno-*=*) : + ;; #( + -Wno-*) : + + + + + +for flag in -Wno-error=$(printf "%s\n" $flag | $SED 's/^-Wno-//'); do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cxxflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C++ compiler accepts $flag" >&5 +printf %s "checking whether C++ compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CXXFLAGS + CXXFLAGS="$CXXFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CXXFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CXXFLAGS+y} +then : + + case " $WARNING_CXXFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS already contains \$flag"; } >&5 + (: WARNING_CXXFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CXXFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CXXFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CXXFLAGS=\"\$WARNING_CXXFLAGS\""; } >&5 + (: WARNING_CXXFLAGS="$WARNING_CXXFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + ;; #( + *) : + ;; +esac + done + + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + + # Substitute the variables + + + +fi + + +if test "x$enable_compile_warnings" != "xno" +then : + ax_enable_compile_warnings=yes + + + + + + + + + + # Variable names + + + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + #ifndef __cplusplus + #error "no C++" + #endif +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + ax_compiler_cxx=yes; +else case e in #( + e) ax_compiler_cxx=no; ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + + # Always pass -Werror=unknown-warning-option to get Clang to fail on bad + # flags, otherwise they are always appended to the warn_cflags variable, and + # Clang warns on them for every compilation unit. + # If this is passed to GCC, it will explode, so the flag must be enabled + # conditionally. + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -Werror=unknown-warning-option" >&5 +printf %s "checking whether C compiler accepts -Werror=unknown-warning-option... " >&6; } +if test ${ax_cv_check_cflags___Werror_unknown_warning_option+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CFLAGS + CFLAGS="$CFLAGS -Werror=unknown-warning-option" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + ax_cv_check_cflags___Werror_unknown_warning_option=yes +else case e in #( + e) ax_cv_check_cflags___Werror_unknown_warning_option=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CFLAGS=$ax_check_save_flags ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___Werror_unknown_warning_option" >&5 +printf "%s\n" "$ax_cv_check_cflags___Werror_unknown_warning_option" >&6; } +if test "x$ax_cv_check_cflags___Werror_unknown_warning_option" = xyes +then : + + ax_compiler_flags_test="-Werror=unknown-warning-option" + +else case e in #( + e) + ax_compiler_flags_test="" + ;; +esac +fi + + + # Check that -Wno-suggest-attribute=format is supported + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -Wno-suggest-attribute=format" >&5 +printf %s "checking whether C compiler accepts -Wno-suggest-attribute=format... " >&6; } +if test ${ax_cv_check_cflags___Wno_suggest_attribute_format+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CFLAGS + CFLAGS="$CFLAGS -Wno-suggest-attribute=format" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + ax_cv_check_cflags___Wno_suggest_attribute_format=yes +else case e in #( + e) ax_cv_check_cflags___Wno_suggest_attribute_format=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CFLAGS=$ax_check_save_flags ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___Wno_suggest_attribute_format" >&5 +printf "%s\n" "$ax_cv_check_cflags___Wno_suggest_attribute_format" >&6; } +if test "x$ax_cv_check_cflags___Wno_suggest_attribute_format" = xyes +then : + + ax_compiler_no_suggest_attribute_flags="-Wno-suggest-attribute=format" + +else case e in #( + e) + ax_compiler_no_suggest_attribute_flags="" + ;; +esac +fi + + + # Base flags + + + + +for flag in -fno-strict-aliasing -pedantic ; do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts $flag" >&5 +printf %s "checking whether C compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CFLAGS + CFLAGS="$CFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CFLAGS+y} +then : + + case " $WARNING_CFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS already contains \$flag"; } >&5 + (: WARNING_CFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + + if test "$ax_enable_compile_warnings" != "no" +then : + + if test "$ax_compiler_cxx" = "no" ; then + # C-only flags. Warn in C++ + + + + +for flag in -Wnested-externs -Wmissing-prototypes -Wstrict-prototypes -Wdeclaration-after-statement -Wimplicit-function-declaration -Wold-style-definition -Wjump-misses-init ; do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts $flag" >&5 +printf %s "checking whether C compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CFLAGS + CFLAGS="$CFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CFLAGS+y} +then : + + case " $WARNING_CFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS already contains \$flag"; } >&5 + (: WARNING_CFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + fi + + # "yes" flags + + + + +for flag in -Wall -Wextra -Wundef -Wwrite-strings -Wpointer-arith -Wmissing-declarations -Wredundant-decls -Wno-unused-parameter -Wno-missing-field-initializers -Wformat=2 -Wcast-align -Wformat-nonliteral -Wformat-security -Wsign-compare -Wstrict-aliasing -Wshadow -Winline -Wpacked -Wmissing-format-attribute -Wmissing-noreturn -Winit-self -Wredundant-decls -Wmissing-include-dirs -Wunused-but-set-variable -Warray-bounds -Wreturn-type -Wswitch-enum -Wswitch-default -Wduplicated-cond -Wduplicated-branches -Wlogical-op -Wrestrict -Wnull-dereference -Wdouble-promotion ; do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts $flag" >&5 +printf %s "checking whether C compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CFLAGS + CFLAGS="$CFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CFLAGS+y} +then : + + case " $WARNING_CFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS already contains \$flag"; } >&5 + (: WARNING_CFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + +fi + if test "$ax_enable_compile_warnings" = "error" +then : + + # "error" flags; -Werror has to be appended unconditionally because + # it's not possible to test for + # + # suggest-attribute=format is disabled because it gives too many false + # positives + +if test ${WARNING_CFLAGS+y} +then : + + case " $WARNING_CFLAGS " in #( + *" -Werror "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS already contains -Werror"; } >&5 + (: WARNING_CFLAGS already contains -Werror) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CFLAGS " -Werror" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CFLAGS=-Werror + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + + + + + + +for flag in $ax_compiler_no_suggest_attribute_flags ; do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts $flag" >&5 +printf %s "checking whether C compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CFLAGS + CFLAGS="$CFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CFLAGS+y} +then : + + case " $WARNING_CFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS already contains \$flag"; } >&5 + (: WARNING_CFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + +fi + + # In the flags below, when disabling specific flags, always add *both* + # -Wno-foo and -Wno-error=foo. This fixes the situation where (for example) + # we enable -Werror, disable a flag, and a build bot passes CFLAGS=-Wall, + # which effectively turns that flag back on again as an error. + for flag in $WARNING_CFLAGS; do + case $flag in #( + -Wno-*=*) : + ;; #( + -Wno-*) : + + + + + +for flag in -Wno-error=$(printf "%s\n" $flag | $SED 's/^-Wno-//'); do + as_CACHEVAR=`printf "%s\n" "ax_cv_check_cflags_$ax_compiler_flags_test_$flag" | sed "$as_sed_sh"` +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts $flag" >&5 +printf %s "checking whether C compiler accepts $flag... " >&6; } +if eval test \${$as_CACHEVAR+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) + ax_check_save_flags=$CFLAGS + CFLAGS="$CFLAGS $ax_compiler_flags_test $flag" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO" +then : + eval "$as_CACHEVAR=yes" +else case e in #( + e) eval "$as_CACHEVAR=no" ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext + CFLAGS=$ax_check_save_flags ;; +esac +fi +eval ac_res=\$$as_CACHEVAR + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +printf "%s\n" "$ac_res" >&6; } +if eval test \"x\$"$as_CACHEVAR"\" = x"yes" +then : + +if test ${WARNING_CFLAGS+y} +then : + + case " $WARNING_CFLAGS " in #( + *" $flag "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS already contains \$flag"; } >&5 + (: WARNING_CFLAGS already contains $flag) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append WARNING_CFLAGS " $flag" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else case e in #( + e) + WARNING_CFLAGS=$flag + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : WARNING_CFLAGS=\"\$WARNING_CFLAGS\""; } >&5 + (: WARNING_CFLAGS="$WARNING_CFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac +fi + +else case e in #( + e) : ;; +esac +fi + +done + + ;; #( + *) : + ;; +esac + done + + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + + # Substitute the variables + + + +fi + +# Check for system planarity suite + +ac_header= ac_cache= +for ac_item in $ac_header_c_list +do + if test $ac_cache; then + ac_fn_c_check_header_compile "$LINENO" $ac_header ac_cv_header_$ac_cache "$ac_includes_default" + if eval test \"x\$ac_cv_header_$ac_cache\" = xyes; then + printf "%s\n" "#define $ac_item 1" >> confdefs.h + fi + ac_header= ac_cache= + elif test $ac_header; then + ac_cache=$ac_item + else + ac_header=$ac_item + fi +done + + + + + + + + +if test $ac_cv_header_stdlib_h = yes && test $ac_cv_header_string_h = yes +then : + +printf "%s\n" "#define STDC_HEADERS 1" >>confdefs.h + +fi + + +# Check whether --with-external-planarity was given. +if test ${with_external_planarity+y} +then : + withval=$with_external_planarity; +else case e in #( + e) with_external_planarity=no ;; +esac +fi + + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to use external planarity" >&5 +printf %s "checking whether to use external planarity... " >&6; } + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_external_planarity" >&5 +printf "%s\n" "$with_external_planarity" >&6; } + if test "x$with_external_planarity" = xyes ; then + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gp_InitGraph in -lplanarity" >&5 +printf %s "checking for gp_InitGraph in -lplanarity... " >&6; } +if test ${ac_cv_lib_planarity_gp_InitGraph+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_check_lib_save_LIBS=$LIBS +LIBS="-lplanarity $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. + The 'extern "C"' is for builds by C++ compilers; + although this is not generally supported in C code supporting it here + has little cost and some practical benefit (sr 110532). */ +#ifdef __cplusplus +extern "C" +#endif +char gp_InitGraph (void); +int +main (void) +{ +return gp_InitGraph (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO" +then : + ac_cv_lib_planarity_gp_InitGraph=yes +else case e in #( + e) ac_cv_lib_planarity_gp_InitGraph=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_planarity_gp_InitGraph" >&5 +printf "%s\n" "$ac_cv_lib_planarity_gp_InitGraph" >&6; } +if test "x$ac_cv_lib_planarity_gp_InitGraph" = xyes +then : + printf "%s\n" "#define HAVE_LIBPLANARITY 1" >>confdefs.h + + LIBS="-lplanarity $LIBS" + +else case e in #( + e) as_fn_error $? "no external libplanarity found" "$LINENO" 5 ;; +esac +fi + + + ac_fn_c_check_header_compile "$LINENO" "planarity/graph.h" "ac_cv_header_planarity_graph_h" "$ac_includes_default" +if test "x$ac_cv_header_planarity_graph_h" = xyes +then : + +else case e in #( + e) as_fn_error $? "no external planarity headers found" "$LINENO" 5 ;; +esac +fi + + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + fi + if test "x$with_external_planarity" = xno ; then + WITH_INCLUDED_PLANARITY=yes + + +printf "%s\n" "#define WITH_INCLUDED_PLANARITY 1" >>confdefs.h + + fi + +if test "x$with_external_planarity" = xno ; then + PLANARITY_SUITE_DIR=extern/edge-addition-planarity-suite-Version_3.0.1.0 + +fi + +# Check for system bliss suite + + +# Check whether --with-external-bliss was given. +if test ${with_external_bliss+y} +then : + withval=$with_external_bliss; +else case e in #( + e) with_external_bliss=no ;; +esac +fi + + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to use external bliss" >&5 +printf %s "checking whether to use external bliss... " >&6; } + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_external_bliss" >&5 +printf "%s\n" "$with_external_bliss" >&6; } + if test "x$with_external_bliss" = xyes ; then + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for bliss_add_edge in -lbliss" >&5 +printf %s "checking for bliss_add_edge in -lbliss... " >&6; } +if test ${ac_cv_lib_bliss_bliss_add_edge+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_check_lib_save_LIBS=$LIBS +LIBS="-lbliss $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. + The 'extern "C"' is for builds by C++ compilers; + although this is not generally supported in C code supporting it here + has little cost and some practical benefit (sr 110532). */ +#ifdef __cplusplus +extern "C" +#endif +char bliss_add_edge (void); +int +main (void) +{ +return bliss_add_edge (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO" +then : + ac_cv_lib_bliss_bliss_add_edge=yes +else case e in #( + e) ac_cv_lib_bliss_bliss_add_edge=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bliss_bliss_add_edge" >&5 +printf "%s\n" "$ac_cv_lib_bliss_bliss_add_edge" >&6; } +if test "x$ac_cv_lib_bliss_bliss_add_edge" = xyes +then : + printf "%s\n" "#define HAVE_LIBBLISS 1" >>confdefs.h + + LIBS="-lbliss $LIBS" + +else case e in #( + e) as_fn_error $? "no external libbliss found" "$LINENO" 5 ;; +esac +fi + + + ac_fn_c_check_header_compile "$LINENO" "bliss/bliss_C.h" "ac_cv_header_bliss_bliss_C_h" "$ac_includes_default" +if test "x$ac_cv_header_bliss_bliss_C_h" = xyes +then : + +else case e in #( + e) as_fn_error $? "no external bliss headers found" "$LINENO" 5 ;; +esac +fi + + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + fi + if test "x$with_external_bliss" = xno ; then + WITH_INCLUDED_BLISS=yes + + +printf "%s\n" "#define WITH_INCLUDED_BLISS 1" >>confdefs.h + + fi + + +# Check whether to use -mpopcnt and __builtin_ctzl + +# Check whether --with-intrinsics was given. +if test ${with_intrinsics+y} +then : + withval=$with_intrinsics; +fi + + +if test "x$with_intrinsics" = "xno" +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: compiler intrinsics will not be used even if available" >&5 +printf "%s\n" "$as_me: compiler intrinsics will not be used even if available" >&6;} +fi + + + +if test "x$with_intrinsics" != "xno" +then : + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for __builtin_ctzll" >&5 +printf %s "checking for __builtin_ctzll... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ +__builtin_ctzll(0); + + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_link "$LINENO" +then : + have___builtin_ctzll=yes +else case e in #( + e) have___builtin_ctzll=no + ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam \ + conftest$ac_exeext conftest.$ac_ext + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $have___builtin_ctzll" >&5 +printf "%s\n" "$have___builtin_ctzll" >&6; } + if test yes = $have___builtin_ctzll +then : + +printf "%s\n" "#define HAVE___BUILTIN_CTZLL 1" >>confdefs.h + +fi +fi + +ac_config_files="$ac_config_files Makefile" + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# 'ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* 'ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # 'set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # 'set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +printf "%s\n" "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +U= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' + ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"` + # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR + # will be set to the directory where LIBOBJS objects are built. + as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext" + as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo' +done +LIBOBJS=$ac_libobjs + +LTLIBOBJS=$ac_ltlibobjs + + + +: "${CONFIG_STATUS=./config.status}" +ac_write_fail=0 +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files $CONFIG_STATUS" +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5 +printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;} +as_write_fail=0 +cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1 +#! $SHELL +# Generated by $as_me. +# Run this file to recreate the current configuration. +# Compiler output produced by configure, useful for debugging +# configure, is in config.log if it exists. + +debug=false +ac_cs_recheck=false +ac_cs_silent=false + +SHELL=\${CONFIG_SHELL-$SHELL} +export SHELL +_ASEOF +cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1 +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1 +then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else case e in #( + e) case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac ;; +esac +fi + + + +# Reset variables that may have inherited troublesome values from +# the environment. + +# IFS needs to be set, to space, tab, and newline, in precisely that order. +# (If _AS_PATH_WALK were called with IFS unset, it would have the +# side effect of setting IFS to empty, thus disabling word splitting.) +# Quoting is to prevent editors from complaining about space-tab. +as_nl=' +' +export as_nl +IFS=" "" $as_nl" + +PS1='$ ' +PS2='> ' +PS4='+ ' + +# Ensure predictable behavior from utilities with locale-dependent output. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# We cannot yet rely on "unset" to work, but we need these variables +# to be unset--not just set to an empty or harmless value--now, to +# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh). This construct +# also avoids known problems related to "unset" and subshell syntax +# in other old shells (e.g. bash 2.01 and pdksh 5.2.14). +for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH +do eval test \${$as_var+y} \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done + +# Ensure that fds 0, 1, and 2 are open. +if (exec 3>&0) 2>/dev/null; then :; else exec 0&1) 2>/dev/null; then :; else exec 1>/dev/null; fi +if (exec 3>&2) ; then :; else exec 2>/dev/null; fi + +# The user is always right. +if ${PATH_SEPARATOR+false} :; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + case $as_dir in #((( + '') as_dir=./ ;; + */) ;; + *) as_dir=$as_dir/ ;; + esac + test -r "$as_dir$0" && as_myself=$as_dir$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as 'sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + printf "%s\n" "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null +then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else case e in #( + e) as_fn_append () + { + eval $1=\$$1\$2 + } ;; +esac +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null +then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else case e in #( + e) as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } ;; +esac +fi # as_fn_arith + + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +printf "%s\n" X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + +# Determine whether it's possible to make 'echo' print without a newline. +# These variables are no longer used directly by Autoconf, but are AC_SUBSTed +# for compatibility with existing Makefiles. +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +# For backward compatibility with old third-party macros, we provide +# the shell variables $as_echo and $as_echo_n. New code should use +# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively. +as_echo='printf %s\n' +as_echo_n='printf %s' + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable. + # In both cases, we have to default to 'cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +printf "%s\n" X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p +if mkdir -p . 2>/dev/null; then + as_mkdir_p='mkdir -p "$as_dir"' +else + test -d ./-p && rmdir ./-p + as_mkdir_p=false +fi + + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +as_test_x='test -x' +as_executable_p=as_fn_executable_p + +# Sed expression to map a string onto a valid CPP name. +as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g" +as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated + +# Sed expression to map a string onto a valid variable name. +as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g" +as_tr_sh="eval sed '$as_sed_sh'" # deprecated + + +exec 6>&1 +## ----------------------------------- ## +## Main body of $CONFIG_STATUS script. ## +## ----------------------------------- ## +_ASEOF +test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# Save the log message, to keep $0 and so on meaningful, and to +# report actual input values of CONFIG_FILES etc. instead of their +# values after options handling. +ac_log=" +This file was extended by digraphs $as_me GAP package, which was +generated by GNU Autoconf 2.72. Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +_ACEOF + +case $ac_config_files in *" +"*) set x $ac_config_files; shift; ac_config_files=$*;; +esac + +case $ac_config_headers in *" +"*) set x $ac_config_headers; shift; ac_config_headers=$*;; +esac + + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# Files that config.status was made for. +config_files="$ac_config_files" +config_headers="$ac_config_headers" +config_commands="$ac_config_commands" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +ac_cs_usage="\ +'$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... [TAG]... + + -h, --help print this help, then exit + -V, --version print version number and configuration settings, then exit + --config print configuration, then exit + -q, --quiet, --silent + do not print progress messages + -d, --debug don't remove temporary files + --recheck update $as_me by reconfiguring in the same conditions + --file=FILE[:TEMPLATE] + instantiate the configuration file FILE + --header=FILE[:TEMPLATE] + instantiate the configuration header FILE + +Configuration files: +$config_files + +Configuration headers: +$config_headers + +Configuration commands: +$config_commands + +Report bugs to the package provider." + +_ACEOF +ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"` +ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"` +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_cs_config='$ac_cs_config_escaped' +ac_cs_version="\\ +digraphs config.status GAP package +configured by $0, generated by GNU Autoconf 2.72, + with options \\"\$ac_cs_config\\" + +Copyright (C) 2023 Free Software Foundation, Inc. +This config.status script is free software; the Free Software Foundation +gives unlimited permission to copy, distribute and modify it." + +ac_pwd='$ac_pwd' +srcdir='$srcdir' +test -n "\$AWK" || AWK=awk +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# The default lists apply if the user does not specify any file. +ac_need_defaults=: +while test $# != 0 +do + case $1 in + --*=?*) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` + ac_shift=: + ;; + --*=) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg= + ac_shift=: + ;; + *) + ac_option=$1 + ac_optarg=$2 + ac_shift=shift + ;; + esac + + case $ac_option in + # Handling of the options. + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + ac_cs_recheck=: ;; + --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) + printf "%s\n" "$ac_cs_version"; exit ;; + --config | --confi | --conf | --con | --co | --c ) + printf "%s\n" "$ac_cs_config"; exit ;; + --debug | --debu | --deb | --de | --d | -d ) + debug=: ;; + --file | --fil | --fi | --f ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + '') as_fn_error $? "missing file argument" ;; + esac + as_fn_append CONFIG_FILES " '$ac_optarg'" + ac_need_defaults=false;; + --header | --heade | --head | --hea ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append CONFIG_HEADERS " '$ac_optarg'" + ac_need_defaults=false;; + --he | --h) + # Conflict between --help and --header + as_fn_error $? "ambiguous option: '$1' +Try '$0 --help' for more information.";; + --help | --hel | -h ) + printf "%s\n" "$ac_cs_usage"; exit ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil | --si | --s) + ac_cs_silent=: ;; + + # This is an error. + -*) as_fn_error $? "unrecognized option: '$1' +Try '$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +if \$ac_cs_recheck; then + set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion + shift + \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6 + CONFIG_SHELL='$SHELL' + export CONFIG_SHELL + exec "\$@" +fi + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + printf "%s\n" "$ac_log" +} >&5 + +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# +# INIT-COMMANDS +# +PACKAGE="$PACKAGE" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "gen/pkgconfig.h") CONFIG_HEADERS="$CONFIG_HEADERS gen/pkgconfig.h:src/pkgconfig.h.in" ;; + "src/digraphs-config.h") CONFIG_COMMANDS="$CONFIG_COMMANDS src/digraphs-config.h" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + + *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files + test ${CONFIG_HEADERS+y} || CONFIG_HEADERS=$config_headers + test ${CONFIG_COMMANDS+y} || CONFIG_COMMANDS=$config_commands +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to '$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with './config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 +ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'` +ac_delim='%!_!# ' +for ac_last_try in false false false false false :; do + . ./conf$$subs.sh || + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + + ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` + if test $ac_delim_n = $ac_delim_num; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done +rm -f conf$$subs.sh + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK && +_ACEOF +sed -n ' +h +s/^/S["/; s/!.*/"]=/ +p +g +s/^[^!]*!// +:repl +t repl +s/'"$ac_delim"'$// +t delim +:nl +h +s/\(.\{148\}\)..*/\1/ +t more1 +s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/ +p +n +b repl +:more1 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t nl +:delim +h +s/\(.\{148\}\)..*/\1/ +t more2 +s/["\\]/\\&/g; s/^/"/; s/$/"/ +p +b +:more2 +s/["\\]/\\&/g; s/^/"/; s/$/"\\/ +p +g +s/.\{148\}// +t delim +' >$CONFIG_STATUS || ac_write_fail=1 +rm -f conf$$subs.awk +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +_ACAWK +cat >>"\$ac_tmp/subs1.awk" <<_ACAWK && + for (key in S) S_is_set[key] = 1 + FS = "" + +} +{ + line = $ 0 + nfields = split(line, field, "@") + substed = 0 + len = length(field[1]) + for (i = 2; i < nfields; i++) { + key = field[i] + keylen = length(key) + if (S_is_set[key]) { + value = S[key] + line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) + len += length(value) + length(field[++i]) + substed = 1 + } else + len += 1 + keylen + } + + print line +} + +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then + sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" +else + cat +fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ + || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with './config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script 'defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5 + else + ac_delim="$ac_delim!$ac_delim _$ac_delim!! " + fi +done + +# For the awk script, D is an array of macro values keyed by name, +# likewise P contains macro parameters if any. Preserve backslash +# newline sequences. + +ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]* +sed -n ' +s/.\{148\}/&'"$ac_delim"'/g +t rset +:rset +s/^[ ]*#[ ]*define[ ][ ]*/ / +t def +d +:def +s/\\$// +t bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3"/p +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p +d +:bsnl +s/["\\]/\\&/g +s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\ +D["\1"]=" \3\\\\\\n"\\/p +t cont +s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p +t cont +d +:cont +n +s/.\{148\}/&'"$ac_delim"'/g +t clear +:clear +s/\\$// +t bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/"/p +d +:bsnlc +s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p +b cont +' >$CONFIG_STATUS || ac_write_fail=1 + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + for (key in D) D_is_set[key] = 1 + FS = "" +} +/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ { + line = \$ 0 + split(line, arg, " ") + if (arg[1] == "#") { + defundef = arg[2] + mac1 = arg[3] + } else { + defundef = substr(arg[1], 2) + mac1 = arg[2] + } + split(mac1, mac2, "(") #) + macro = mac2[1] + prefix = substr(line, 1, index(line, defundef) - 1) + if (D_is_set[macro]) { + # Preserve the white space surrounding the "#". + print prefix "define", macro P[macro] D[macro] + next + } else { + # Replace #undef with comments. This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS" +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;; + :[FH]-) ac_tag=-:-;; + :[FH]*) ac_tag=$ac_tag:$ac_tag.in;; + esac + ac_save_IFS=$IFS + IFS=: + set x $ac_tag + IFS=$ac_save_IFS + shift + ac_file=$1 + shift + + case $ac_mode in + :L) ac_source=$1;; + :[FH]) + ac_file_inputs= + for ac_f + do + case $ac_f in + -) ac_f="$ac_tmp/stdin";; + *) # Look for the file first in the build tree, then in the source tree + # (if the path is not absolute). The absolute path cannot be DOS-style, + # because $ac_f cannot contain ':'. + test -f "$ac_f" || + case $ac_f in + [\\/$]*) false;; + *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";; + esac || + as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;; + esac + case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac + as_fn_append ac_file_inputs " '$ac_f'" + done + + # Let's still pretend it is 'configure' which instantiates (i.e., don't + # use $as_me), people would be surprised to read: + # /* config.h. Generated by config.status. */ + configure_input='Generated from '` + printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g' + `' by configure.' + if test x"$ac_file" != x-; then + configure_input="$ac_file. $configure_input" + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5 +printf "%s\n" "$as_me: creating $ac_file" >&6;} + fi + # Neutralize special characters interpreted by sed in replacement strings. + case $configure_input in #( + *\&* | *\|* | *\\* ) + ac_sed_conf_input=`printf "%s\n" "$configure_input" | + sed 's/[\\\\&|]/\\\\&/g'`;; #( + *) ac_sed_conf_input=$configure_input;; + esac + + case $ac_tag in + *:-:* | *:-) cat >"$ac_tmp/stdin" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;; + esac + ;; + esac + + ac_dir=`$as_dirname -- "$ac_file" || +$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$ac_file" : 'X\(//\)[^/]' \| \ + X"$ac_file" : 'X\(//\)$' \| \ + X"$ac_file" : 'X\(/\)' \| . 2>/dev/null || +printf "%s\n" X"$ac_file" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + as_dir="$ac_dir"; as_fn_mkdir_p + ac_builddir=. + +case "$ac_dir" in +.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;; +*) + ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'` + # A ".." for each directory in $ac_dir_suffix. + ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'` + case $ac_top_builddir_sub in + "") ac_top_builddir_sub=. ac_top_build_prefix= ;; + *) ac_top_build_prefix=$ac_top_builddir_sub/ ;; + esac ;; +esac +ac_abs_top_builddir=$ac_pwd +ac_abs_builddir=$ac_pwd$ac_dir_suffix +# for backward compatibility: +ac_top_builddir=$ac_top_build_prefix + +case $srcdir in + .) # We are building in place. + ac_srcdir=. + ac_top_srcdir=$ac_top_builddir_sub + ac_abs_top_srcdir=$ac_pwd ;; + [\\/]* | ?:[\\/]* ) # Absolute name. + ac_srcdir=$srcdir$ac_dir_suffix; + ac_top_srcdir=$srcdir + ac_abs_top_srcdir=$srcdir ;; + *) # Relative name. + ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix + ac_top_srcdir=$ac_top_build_prefix$srcdir + ac_abs_top_srcdir=$ac_pwd/$srcdir ;; +esac +ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix + + + case $ac_mode in + :F) + # + # CONFIG_FILE + # + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +# If the template does not know about datarootdir, expand it. +# FIXME: This hack should be removed a few years after 2.60. +ac_datarootdir_hack=; ac_datarootdir_seen= +ac_sed_dataroot=' +/datarootdir/ { + p + q +} +/@datadir@/p +/@docdir@/p +/@infodir@/p +/@localedir@/p +/@mandir@/p' +case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in +*datarootdir*) ac_datarootdir_seen=yes;; +*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*) + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5 +printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;} +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 + ac_datarootdir_hack=' + s&@datadir@&$datadir&g + s&@docdir@&$docdir&g + s&@infodir@&$infodir&g + s&@localedir@&$localedir&g + s&@mandir@&$mandir&g + s&\\\${datarootdir}&$datarootdir&g' ;; +esac +_ACEOF + +# Neutralize VPATH when '$srcdir' = '.'. +# Shell code in configure.ac might set extrasub. +# FIXME: do we really want to maintain this feature? +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +ac_sed_extra="$ac_vpsub +$extrasub +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +:t +/@[a-zA-Z_][a-zA-Z_0-9]*@/!b +s|@configure_input@|$ac_sed_conf_input|;t t +s&@top_builddir@&$ac_top_builddir_sub&;t t +s&@top_build_prefix@&$ac_top_build_prefix&;t t +s&@srcdir@&$ac_srcdir&;t t +s&@abs_srcdir@&$ac_abs_srcdir&;t t +s&@top_srcdir@&$ac_top_srcdir&;t t +s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t +s&@builddir@&$ac_builddir&;t t +s&@abs_builddir@&$ac_abs_builddir&;t t +s&@abs_top_builddir@&$ac_abs_top_builddir&;t t +$ac_datarootdir_hack +" +eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \ + >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + +test -z "$ac_datarootdir_hack$ac_datarootdir_seen" && + { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } && + { ac_out=`sed -n '/^[ ]*datarootdir[ ]*:*=/p' \ + "$ac_tmp/out"`; test -z "$ac_out"; } && + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir' +which seems to be undefined. Please make sure it is defined" >&5 +printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir' +which seems to be undefined. Please make sure it is defined" >&2;} + + rm -f "$ac_tmp/stdin" + case $ac_file in + -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";; + *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";; + esac \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + ;; + :H) + # + # CONFIG_HEADER + # + if test x"$ac_file" != x-; then + { + printf "%s\n" "/* $configure_input */" >&1 \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" + } >"$ac_tmp/config.h" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5 +printf "%s\n" "$as_me: $ac_file is unchanged" >&6;} + else + rm -f "$ac_file" + mv "$ac_tmp/config.h" "$ac_file" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + fi + else + printf "%s\n" "/* $configure_input */" >&1 \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \ + || as_fn_error $? "could not create -" "$LINENO" 5 + fi + ;; + + :C) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5 +printf "%s\n" "$as_me: executing $ac_file commands" >&6;} + ;; + esac + + + case $ac_file$ac_mode in + "src/digraphs-config.h":C) ac_prefix_conf_OUT=`echo src/digraphs-config.h` +ac_prefix_conf_DEF=`echo _$ac_prefix_conf_OUT | sed -e "y:abcdefghijklmnopqrstuvwxyz:ABCDEFGHIJKLMNOPQRSTUVWXYZ:" -e "s/[^abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g"` +ac_prefix_conf_PKG=`echo digraphs` +ac_prefix_conf_LOW=`echo _$ac_prefix_conf_PKG | sed -e "y:ABCDEFGHIJKLMNOPQRSTUVWXYZ-:abcdefghijklmnopqrstuvwxyz_:"` +ac_prefix_conf_UPP=`echo $ac_prefix_conf_PKG | sed -e "y:abcdefghijklmnopqrstuvwxyz-:ABCDEFGHIJKLMNOPQRSTUVWXYZ_:" -e "/^[0123456789]/s/^/_/"` +ac_prefix_conf_INP=`echo "gen/pkgconfig.h" | sed -e 's/ *//'` +if test ".$ac_prefix_conf_INP" = "."; then + for ac_file in : $CONFIG_HEADERS; do test "_$ac_file" = _: && continue + case "$ac_file" in + *.h) ac_prefix_conf_INP=$ac_file ;; + *) + esac + test ".$ac_prefix_conf_INP" != "." && break + done +fi +if test ".$ac_prefix_conf_INP" = "."; then + case "$ac_prefix_conf_OUT" in + */*) ac_prefix_conf_INP=`basename "$ac_prefix_conf_OUT"` + ;; + *-*) ac_prefix_conf_INP=`echo "$ac_prefix_conf_OUT" | sed -e "s/[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]*-//"` + ;; + *) ac_prefix_conf_INP=config.h + ;; + esac +fi +if test -z "$ac_prefix_conf_PKG" ; then + as_fn_error $? "no prefix for _PREFIX_PKG_CONFIG_H" "$LINENO" 5 +else + if test ! -f "$ac_prefix_conf_INP" ; then if test -f "$srcdir/$ac_prefix_conf_INP" ; then + ac_prefix_conf_INP="$srcdir/$ac_prefix_conf_INP" + fi fi + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_prefix_conf_OUT - prefix $ac_prefix_conf_UPP for $ac_prefix_conf_INP defines" >&5 +printf "%s\n" "$as_me: creating $ac_prefix_conf_OUT - prefix $ac_prefix_conf_UPP for $ac_prefix_conf_INP defines" >&6;} + if test -f $ac_prefix_conf_INP ; then + printf "%s\n" "s/^#undef *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]\\)/#undef $ac_prefix_conf_UPP""_\\1/" > conftest.prefix + printf "%s\n" "s/^#undef *\\([abcdefghijklmnopqrstuvwxyz]\\)/#undef $ac_prefix_conf_LOW""_\\1/" >> conftest.prefix + printf "%s\n" "s/^#define *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_][abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]*\\)\\(.*\\)/#ifndef $ac_prefix_conf_UPP""_\\1\\" >> conftest.prefix + printf "%s\n" "#define $ac_prefix_conf_UPP""_\\1\\2\\" >> conftest.prefix + printf "%s\n" "#endif/" >> conftest.prefix + printf "%s\n" "s/^#define *\\([abcdefghijklmnopqrstuvwxyz][abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]*\\)\\(.*\\)/#ifndef $ac_prefix_conf_LOW""_\\1\\" >> conftest.prefix + printf "%s\n" "#define $ac_prefix_conf_LOW""_\\1\\2\\" >> conftest.prefix + printf "%s\n" "#endif/" >> conftest.prefix + # now executing _script on _DEF input to create _OUT output file + echo "#ifndef $ac_prefix_conf_DEF" >$tmp/pconfig.h + echo "#define $ac_prefix_conf_DEF 1" >>$tmp/pconfig.h + echo ' ' >>$tmp/pconfig.h + echo /'*' $ac_prefix_conf_OUT. Generated automatically at end of configure. '*'/ >>$tmp/pconfig.h + + sed -f conftest.prefix $ac_prefix_conf_INP >>$tmp/pconfig.h + echo ' ' >>$tmp/pconfig.h + echo '/* once:' $ac_prefix_conf_DEF '*/' >>$tmp/pconfig.h + echo "#endif" >>$tmp/pconfig.h + if cmp -s $ac_prefix_conf_OUT $tmp/pconfig.h 2>/dev/null; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_prefix_conf_OUT is unchanged" >&5 +printf "%s\n" "$as_me: $ac_prefix_conf_OUT is unchanged" >&6;} + else + ac_dir=`$as_dirname -- "$ac_prefix_conf_OUT" || +$as_expr X"$ac_prefix_conf_OUT" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$ac_prefix_conf_OUT" : 'X\(//\)[^/]' \| \ + X"$ac_prefix_conf_OUT" : 'X\(//\)$' \| \ + X"$ac_prefix_conf_OUT" : 'X\(/\)' \| . 2>/dev/null || +printf "%s\n" X"$ac_prefix_conf_OUT" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + as_dir="$ac_dir"; as_fn_mkdir_p + rm -f "$ac_prefix_conf_OUT" + mv $tmp/pconfig.h "$ac_prefix_conf_OUT" + fi + else + as_fn_error $? "input file $ac_prefix_conf_INP does not exist - skip generating $ac_prefix_conf_OUT" "$LINENO" 5 + fi + rm -f conftest.* +fi + ;; + + esac +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + + diff --git a/doc/oper.xml b/doc/oper.xml index e5d06ccf8..70a74ff5a 100644 --- a/doc/oper.xml +++ b/doc/oper.xml @@ -788,7 +788,7 @@ true

D3 := Digraph(IsMutableDigraph, [[2],[1],[2]]); +gap> D3 := Digraph(IsMutableDigraph, [[2], [1], [2]]); gap> DigraphRemoveAllEdges(D3); diff --git a/gap/oper.gi b/gap/oper.gi index 1dbd9ed3c..174973de7 100644 --- a/gap/oper.gi +++ b/gap/oper.gi @@ -277,16 +277,15 @@ InstallMethod(DigraphRemoveEdges, "for an immutable digraph and a list", [IsImmutableDigraph, IsList], {D, edges} -> MakeImmutable(DigraphRemoveEdges(DigraphMutableCopy(D), edges))); -InstallMethod(DigraphRemoveAllEdges, "for a mutable digraph", -[IsDigraph], +InstallMethod(DigraphRemoveAllEdges, "for a mutable digraph", +[IsDigraph], function(D) - local i, neighbour, nbs, currentEdges; + local i, nbs, currentEdges; if IsImmutableDigraph(D) then ErrorNoReturn("Argument must be a mutable digraph"); - else + else nbs := OutNeighboursMutableCopy(D); - - for i in [1..Length(nbs)] do + for i in [1 .. Length(nbs)] do currentEdges := DigraphOutEdges(D, i); DigraphRemoveEdges(D, currentEdges); od; @@ -295,7 +294,6 @@ function(D) fi; end); - InstallMethod(DigraphReverseEdge, "for a mutable digraph by out-neighbours and two positive integers", [IsMutableDigraph and IsDigraphByOutNeighboursRep, IsPosInt, IsPosInt], From c32aca694c3b5193baf9fc957a7954463fe8a892 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Mon, 6 Oct 2025 14:41:34 +0100 Subject: [PATCH 03/15] Changes made to SwapDigraphs and DigraphRemoveAllEdges --- doc/oper.xml | 21 --------------------- gap/oper.gd | 2 -- gap/oper.gi | 17 ----------------- 3 files changed, 40 deletions(-) diff --git a/doc/oper.xml b/doc/oper.xml index 70a74ff5a..0930e8f3c 100644 --- a/doc/oper.xml +++ b/doc/oper.xml @@ -777,27 +777,6 @@ true <#/GAPDoc> -<#GAPDoc Label="DigraphRemoveAllEdges"> - - - An empty digraph. - - This operation returns a digraph constructed from digraph, which is mutable, - by removing all of the edges in the original digraph. - (see ). -

- - D3 := Digraph(IsMutableDigraph, [[2], [1], [2]]); - -gap> DigraphRemoveAllEdges(D3); - -true -]]> - - -<#/GAPDoc> - <#GAPDoc Label="InducedSubdigraph"> diff --git a/gap/oper.gd b/gap/oper.gd index 279deb452..f6a37e0f8 100644 --- a/gap/oper.gd +++ b/gap/oper.gd @@ -29,8 +29,6 @@ DeclareOperation("DigraphRemoveEdge", [IsDigraph, IsPosInt, IsPosInt]); DeclareOperation("DigraphRemoveEdge", [IsDigraph, IsList]); DeclareOperation("DigraphRemoveEdges", [IsDigraph, IsList]); -DeclareOperation("DigraphRemoveAllEdges", [IsDigraph]); - DeclareOperation("DigraphReverseEdge", [IsDigraph, IsList]); DeclareOperation("DigraphReverseEdge", [IsDigraph, IsPosInt, IsPosInt]); DeclareOperation("DigraphReverseEdges", [IsDigraph, IsList]); diff --git a/gap/oper.gi b/gap/oper.gi index 174973de7..3876db50e 100644 --- a/gap/oper.gi +++ b/gap/oper.gi @@ -277,23 +277,6 @@ InstallMethod(DigraphRemoveEdges, "for an immutable digraph and a list", [IsImmutableDigraph, IsList], {D, edges} -> MakeImmutable(DigraphRemoveEdges(DigraphMutableCopy(D), edges))); -InstallMethod(DigraphRemoveAllEdges, "for a mutable digraph", -[IsDigraph], -function(D) - local i, nbs, currentEdges; - if IsImmutableDigraph(D) then - ErrorNoReturn("Argument must be a mutable digraph"); - else - nbs := OutNeighboursMutableCopy(D); - for i in [1 .. Length(nbs)] do - currentEdges := DigraphOutEdges(D, i); - DigraphRemoveEdges(D, currentEdges); - od; - - return D; - fi; -end); - InstallMethod(DigraphReverseEdge, "for a mutable digraph by out-neighbours and two positive integers", [IsMutableDigraph and IsDigraphByOutNeighboursRep, IsPosInt, IsPosInt], From f1ac56e469a1da0d710c7f4b135ff34c10fb6770 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 8 Oct 2025 14:56:53 +0100 Subject: [PATCH 04/15] Changes made to DigraphRemoveAllEdges --- configure~ | 7137 --------------------------------------------------- gap/attr.gd | 3 +- 2 files changed, 2 insertions(+), 7138 deletions(-) delete mode 100755 configure~ diff --git a/configure~ b/configure~ deleted file mode 100755 index e13fdd34c..000000000 --- a/configure~ +++ /dev/null @@ -1,7137 +0,0 @@ -#! /bin/sh -# Guess values for system-dependent variables and create Makefiles. -# Generated by GNU Autoconf 2.72 for digraphs GAP package. -# -# -# Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation, -# Inc. -# -# -# This configure script is free software; the Free Software Foundation -# gives unlimited permission to copy, distribute and modify it. -## -------------------- ## -## M4sh Initialization. ## -## -------------------- ## - -# Be more Bourne compatible -DUALCASE=1; export DUALCASE # for MKS sh -if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1 -then : - emulate sh - NULLCMD=: - # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which - # is contrary to our usage. Disable this feature. - alias -g '${1+"$@"}'='"$@"' - setopt NO_GLOB_SUBST -else case e in #( - e) case `(set -o) 2>/dev/null` in #( - *posix*) : - set -o posix ;; #( - *) : - ;; -esac ;; -esac -fi - - - -# Reset variables that may have inherited troublesome values from -# the environment. - -# IFS needs to be set, to space, tab, and newline, in precisely that order. -# (If _AS_PATH_WALK were called with IFS unset, it would have the -# side effect of setting IFS to empty, thus disabling word splitting.) -# Quoting is to prevent editors from complaining about space-tab. -as_nl=' -' -export as_nl -IFS=" "" $as_nl" - -PS1='$ ' -PS2='> ' -PS4='+ ' - -# Ensure predictable behavior from utilities with locale-dependent output. -LC_ALL=C -export LC_ALL -LANGUAGE=C -export LANGUAGE - -# We cannot yet rely on "unset" to work, but we need these variables -# to be unset--not just set to an empty or harmless value--now, to -# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh). 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"./$cache_file";; - esac - fi -else - { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5 -printf "%s\n" "$as_me: creating cache $cache_file" >&6;} - >$cache_file -fi - -# Test code for whether the C compiler supports C89 (global declarations) -ac_c_conftest_c89_globals=' -/* Does the compiler advertise C89 conformance? - Do not test the value of __STDC__, because some compilers set it to 0 - while being otherwise adequately conformant. */ -#if !defined __STDC__ -# error "Compiler does not advertise C89 conformance" -#endif - -#include -#include -struct stat; -/* Most of the following tests are stolen from RCS 5.7 src/conf.sh. */ -struct buf { int x; }; -struct buf * (*rcsopen) (struct buf *, struct stat *, int); -static char *e (char **p, int i) -{ - return p[i]; -} -static char *f (char * (*g) (char **, int), char **p, ...) -{ - char *s; - va_list v; - va_start (v,p); - s = g (p, va_arg (v,int)); - va_end (v); - return s; -} - -/* C89 style stringification. */ -#define noexpand_stringify(a) #a -const char *stringified = noexpand_stringify(arbitrary+token=sequence); - -/* C89 style token pasting. Exercises some of the corner cases that - e.g. old MSVC gets wrong, but not very hard. */ -#define noexpand_concat(a,b) a##b -#define expand_concat(a,b) noexpand_concat(a,b) -extern int vA; -extern int vbee; -#define aye A -#define bee B -int *pvA = &expand_concat(v,aye); -int *pvbee = &noexpand_concat(v,bee); - -/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has - function prototypes and stuff, but not \xHH hex character constants. - These do not provoke an error unfortunately, instead are silently treated - as an "x". The following induces an error, until -std is added to get - proper ANSI mode. Curiously \x00 != x always comes out true, for an - array size at least. It is necessary to write \x00 == 0 to get something - that is true only with -std. */ -int osf4_cc_array ['\''\x00'\'' == 0 ? 1 : -1]; - -/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters - inside strings and character constants. */ -#define FOO(x) '\''x'\'' -int xlc6_cc_array[FOO(a) == '\''x'\'' ? 1 : -1]; - -int test (int i, double x); -struct s1 {int (*f) (int a);}; -struct s2 {int (*f) (double a);}; -int pairnames (int, char **, int *(*)(struct buf *, struct stat *, int), - int, int);' - -# Test code for whether the C compiler supports C89 (body of main). -ac_c_conftest_c89_main=' -ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]); -' - -# Test code for whether the C compiler supports C99 (global declarations) -ac_c_conftest_c99_globals=' -/* Does the compiler advertise C99 conformance? */ -#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L -# error "Compiler does not advertise C99 conformance" -#endif - -// See if C++-style comments work. - -#include -extern int puts (const char *); -extern int printf (const char *, ...); -extern int dprintf (int, const char *, ...); -extern void *malloc (size_t); -extern void free (void *); - -// Check varargs macros. These examples are taken from C99 6.10.3.5. -// dprintf is used instead of fprintf to avoid needing to declare -// FILE and stderr. -#define debug(...) dprintf (2, __VA_ARGS__) -#define showlist(...) puts (#__VA_ARGS__) -#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) -static void -test_varargs_macros (void) -{ - int x = 1234; - int y = 5678; - debug ("Flag"); - debug ("X = %d\n", x); - showlist (The first, second, and third items.); - report (x>y, "x is %d but y is %d", x, y); -} - -// Check long long types. -#define BIG64 18446744073709551615ull -#define BIG32 4294967295ul -#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) -#if !BIG_OK - #error "your preprocessor is broken" -#endif -#if BIG_OK -#else - #error "your preprocessor is broken" -#endif -static long long int bignum = -9223372036854775807LL; -static unsigned long long int ubignum = BIG64; - -struct incomplete_array -{ - int datasize; - double data[]; -}; - -struct named_init { - int number; - const wchar_t *name; - double average; -}; - -typedef const char *ccp; - -static inline int -test_restrict (ccp restrict text) -{ - // Iterate through items via the restricted pointer. - // Also check for declarations in for loops. - for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i) - continue; - return 0; -} - -// Check varargs and va_copy. -static bool -test_varargs (const char *format, ...) -{ - va_list args; - va_start (args, format); - va_list args_copy; - va_copy (args_copy, args); - - const char *str = ""; - int number = 0; - float fnumber = 0; - - while (*format) - { - switch (*format++) - { - case '\''s'\'': // string - str = va_arg (args_copy, const char *); - break; - case '\''d'\'': // int - number = va_arg (args_copy, int); - break; - case '\''f'\'': // float - fnumber = va_arg (args_copy, double); - break; - default: - break; - } - } - va_end (args_copy); - va_end (args); - - return *str && number && fnumber; -} -' - -# Test code for whether the C compiler supports C99 (body of main). -ac_c_conftest_c99_main=' - // Check bool. - _Bool success = false; - success |= (argc != 0); - - // Check restrict. - if (test_restrict ("String literal") == 0) - success = true; - char *restrict newvar = "Another string"; - - // Check varargs. - success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234); - test_varargs_macros (); - - // Check flexible array members. - struct incomplete_array *ia = - malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); - ia->datasize = 10; - for (int i = 0; i < ia->datasize; ++i) - ia->data[i] = i * 1.234; - // Work around memory leak warnings. - free (ia); - - // Check named initializers. - struct named_init ni = { - .number = 34, - .name = L"Test wide string", - .average = 543.34343, - }; - - ni.number = 58; - - int dynamic_array[ni.number]; - dynamic_array[0] = argv[0][0]; - dynamic_array[ni.number - 1] = 543; - - // work around unused variable warnings - ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\'' - || dynamic_array[ni.number - 1] != 543); -' - -# Test code for whether the C compiler supports C11 (global declarations) -ac_c_conftest_c11_globals=' -/* Does the compiler advertise C11 conformance? */ -#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L -# error "Compiler does not advertise C11 conformance" -#endif - -// Check _Alignas. -char _Alignas (double) aligned_as_double; -char _Alignas (0) no_special_alignment; -extern char aligned_as_int; -char _Alignas (0) _Alignas (int) aligned_as_int; - -// Check _Alignof. -enum -{ - int_alignment = _Alignof (int), - int_array_alignment = _Alignof (int[100]), - char_alignment = _Alignof (char) -}; -_Static_assert (0 < -_Alignof (int), "_Alignof is signed"); - -// Check _Noreturn. -int _Noreturn does_not_return (void) { for (;;) continue; } - -// Check _Static_assert. -struct test_static_assert -{ - int x; - _Static_assert (sizeof (int) <= sizeof (long int), - "_Static_assert does not work in struct"); - long int y; -}; - -// Check UTF-8 literals. -#define u8 syntax error! -char const utf8_literal[] = u8"happens to be ASCII" "another string"; - -// Check duplicate typedefs. -typedef long *long_ptr; -typedef long int *long_ptr; -typedef long_ptr long_ptr; - -// Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1. -struct anonymous -{ - union { - struct { int i; int j; }; - struct { int k; long int l; } w; - }; - int m; -} v1; -' - -# Test code for whether the C compiler supports C11 (body of main). -ac_c_conftest_c11_main=' - _Static_assert ((offsetof (struct anonymous, i) - == offsetof (struct anonymous, w.k)), - "Anonymous union alignment botch"); - v1.i = 2; - v1.w.k = 5; - ok |= v1.i != 5; -' - -# Test code for whether the C compiler supports C11 (complete). -ac_c_conftest_c11_program="${ac_c_conftest_c89_globals} -${ac_c_conftest_c99_globals} -${ac_c_conftest_c11_globals} - -int -main (int argc, char **argv) -{ - int ok = 0; - ${ac_c_conftest_c89_main} - ${ac_c_conftest_c99_main} - ${ac_c_conftest_c11_main} - return ok; -} -" - -# Test code for whether the C compiler supports C99 (complete). -ac_c_conftest_c99_program="${ac_c_conftest_c89_globals} -${ac_c_conftest_c99_globals} - -int -main (int argc, char **argv) -{ - int ok = 0; - ${ac_c_conftest_c89_main} - ${ac_c_conftest_c99_main} - return ok; -} -" - -# Test code for whether the C compiler supports C89 (complete). -ac_c_conftest_c89_program="${ac_c_conftest_c89_globals} - -int -main (int argc, char **argv) -{ - int ok = 0; - ${ac_c_conftest_c89_main} - return ok; -} -" - -# Test code for whether the C++ compiler supports C++98 (global declarations) -ac_cxx_conftest_cxx98_globals=' -// Does the compiler advertise C++98 conformance? -#if !defined __cplusplus || __cplusplus < 199711L -# error "Compiler does not advertise C++98 conformance" -#endif - -// These inclusions are to reject old compilers that -// lack the unsuffixed header files. -#include -#include - -// and are *not* freestanding headers in C++98. -extern void assert (int); -namespace std { - extern int strcmp (const char *, const char *); -} - -// Namespaces, exceptions, and templates were all added after "C++ 2.0". -using std::exception; -using std::strcmp; - -namespace { - -void test_exception_syntax() -{ - try { - throw "test"; - } catch (const char *s) { - // Extra parentheses suppress a warning when building autoconf itself, - // due to lint rules shared with more typical C programs. - assert (!(strcmp) (s, "test")); - } -} - -template struct test_template -{ - T const val; - explicit test_template(T t) : val(t) {} - template T add(U u) { return static_cast(u) + val; } -}; - -} // anonymous namespace -' - -# Test code for whether the C++ compiler supports C++98 (body of main) -ac_cxx_conftest_cxx98_main=' - assert (argc); - assert (! argv[0]); -{ - test_exception_syntax (); - test_template tt (2.0); - assert (tt.add (4) == 6.0); - assert (true && !false); -} -' - -# Test code for whether the C++ compiler supports C++11 (global declarations) -ac_cxx_conftest_cxx11_globals=' -// Does the compiler advertise C++ 2011 conformance? -#if !defined __cplusplus || __cplusplus < 201103L -# error "Compiler does not advertise C++11 conformance" -#endif - -namespace cxx11test -{ - constexpr int get_val() { return 20; } - - struct testinit - { - int i; - double d; - }; - - class delegate - { - public: - delegate(int n) : n(n) {} - delegate(): delegate(2354) {} - - virtual int getval() { return this->n; }; - protected: - int n; - }; - - class overridden : public delegate - { - public: - overridden(int n): delegate(n) {} - virtual int getval() override final { return this->n * 2; } - }; - - class nocopy - { - public: - nocopy(int i): i(i) {} - nocopy() = default; - nocopy(const nocopy&) = delete; - nocopy & operator=(const nocopy&) = delete; - private: - int i; - }; - - // for testing lambda expressions - template Ret eval(Fn f, Ret v) - { - return f(v); - } - - // for testing variadic templates and trailing return types - template auto sum(V first) -> V - { - return first; - } - template auto sum(V first, Args... rest) -> V - { - return first + sum(rest...); - } -} -' - -# Test code for whether the C++ compiler supports C++11 (body of main) -ac_cxx_conftest_cxx11_main=' -{ - // Test auto and decltype - auto a1 = 6538; - auto a2 = 48573953.4; - auto a3 = "String literal"; - - int total = 0; - for (auto i = a3; *i; ++i) { total += *i; } - - decltype(a2) a4 = 34895.034; -} -{ - // Test constexpr - short sa[cxx11test::get_val()] = { 0 }; -} -{ - // Test initializer lists - cxx11test::testinit il = { 4323, 435234.23544 }; -} -{ - // Test range-based for - int array[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, - 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; - for (auto &x : array) { x += 23; } -} -{ - // Test lambda expressions - using cxx11test::eval; - assert (eval ([](int x) { return x*2; }, 21) == 42); - double d = 2.0; - assert (eval ([&](double x) { return d += x; }, 3.0) == 5.0); - assert (d == 5.0); - assert (eval ([=](double x) mutable { return d += x; }, 4.0) == 9.0); - assert (d == 5.0); -} -{ - // Test use of variadic templates - using cxx11test::sum; - auto a = sum(1); - auto b = sum(1, 2); - auto c = sum(1.0, 2.0, 3.0); -} -{ - // Test constructor delegation - cxx11test::delegate d1; - cxx11test::delegate d2(); - cxx11test::delegate d3(45); -} -{ - // Test override and final - cxx11test::overridden o1(55464); -} -{ - // Test nullptr - char *c = nullptr; -} -{ - // Test template brackets - test_template<::test_template> v(test_template(12)); -} -{ - // Unicode literals - char const *utf8 = u8"UTF-8 string \u2500"; - char16_t const *utf16 = u"UTF-8 string \u2500"; - char32_t const *utf32 = U"UTF-32 string \u2500"; -} -' - -# Test code for whether the C compiler supports C++11 (complete). -ac_cxx_conftest_cxx11_program="${ac_cxx_conftest_cxx98_globals} -${ac_cxx_conftest_cxx11_globals} - -int -main (int argc, char **argv) -{ - int ok = 0; - ${ac_cxx_conftest_cxx98_main} - ${ac_cxx_conftest_cxx11_main} - return ok; -} -" - -# Test code for whether the C compiler supports C++98 (complete). -ac_cxx_conftest_cxx98_program="${ac_cxx_conftest_cxx98_globals} -int -main (int argc, char **argv) -{ - int ok = 0; - ${ac_cxx_conftest_cxx98_main} - return ok; -} -" - -as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H" -as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H" -as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H" -as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H" -as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H" -as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H" -as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H" -as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H" -as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H" -# Check that the precious variables saved in the cache have kept the same -# value. -ac_cache_corrupted=false -for ac_var in $ac_precious_vars; 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"no prefix for _PREFIX_PKG_CONFIG_H" "$LINENO" 5 -else - if test ! -f "$ac_prefix_conf_INP" ; then if test -f "$srcdir/$ac_prefix_conf_INP" ; then - ac_prefix_conf_INP="$srcdir/$ac_prefix_conf_INP" - fi fi - { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_prefix_conf_OUT - prefix $ac_prefix_conf_UPP for $ac_prefix_conf_INP defines" >&5 -printf "%s\n" "$as_me: creating $ac_prefix_conf_OUT - prefix $ac_prefix_conf_UPP for $ac_prefix_conf_INP defines" >&6;} - if test -f $ac_prefix_conf_INP ; then - printf "%s\n" "s/^#undef *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]\\)/#undef $ac_prefix_conf_UPP""_\\1/" > conftest.prefix - printf "%s\n" "s/^#undef *\\([abcdefghijklmnopqrstuvwxyz]\\)/#undef $ac_prefix_conf_LOW""_\\1/" >> conftest.prefix - printf "%s\n" "s/^#define *\\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_][abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]*\\)\\(.*\\)/#ifndef $ac_prefix_conf_UPP""_\\1\\" >> conftest.prefix - printf "%s\n" "#define $ac_prefix_conf_UPP""_\\1\\2\\" >> conftest.prefix - printf "%s\n" "#endif/" >> conftest.prefix - printf "%s\n" "s/^#define *\\([abcdefghijklmnopqrstuvwxyz][abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]*\\)\\(.*\\)/#ifndef $ac_prefix_conf_LOW""_\\1\\" >> conftest.prefix - printf "%s\n" "#define $ac_prefix_conf_LOW""_\\1\\2\\" >> conftest.prefix - printf "%s\n" "#endif/" >> conftest.prefix - # now executing _script on _DEF input to create _OUT output file - echo "#ifndef $ac_prefix_conf_DEF" >$tmp/pconfig.h - echo "#define $ac_prefix_conf_DEF 1" >>$tmp/pconfig.h - echo ' ' >>$tmp/pconfig.h - echo /'*' $ac_prefix_conf_OUT. Generated automatically at end of configure. '*'/ >>$tmp/pconfig.h - - sed -f conftest.prefix $ac_prefix_conf_INP >>$tmp/pconfig.h - echo ' ' >>$tmp/pconfig.h - echo '/* once:' $ac_prefix_conf_DEF '*/' >>$tmp/pconfig.h - echo "#endif" >>$tmp/pconfig.h - if cmp -s $ac_prefix_conf_OUT $tmp/pconfig.h 2>/dev/null; then - { printf "%s\n" "$as_me:${as_lineno-$LINENO}: $ac_prefix_conf_OUT is unchanged" >&5 -printf "%s\n" "$as_me: $ac_prefix_conf_OUT is unchanged" >&6;} - else - ac_dir=`$as_dirname -- "$ac_prefix_conf_OUT" || -$as_expr X"$ac_prefix_conf_OUT" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ - X"$ac_prefix_conf_OUT" : 'X\(//\)[^/]' \| \ - X"$ac_prefix_conf_OUT" : 'X\(//\)$' \| \ - X"$ac_prefix_conf_OUT" : 'X\(/\)' \| . 2>/dev/null || -printf "%s\n" X"$ac_prefix_conf_OUT" | - sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ - s//\1/ - q - } - /^X\(\/\/\)[^/].*/{ - s//\1/ - q - } - /^X\(\/\/\)$/{ - s//\1/ - q - } - /^X\(\/\).*/{ - s//\1/ - q - } - s/.*/./; q'` - as_dir="$ac_dir"; as_fn_mkdir_p - rm -f "$ac_prefix_conf_OUT" - mv $tmp/pconfig.h "$ac_prefix_conf_OUT" - fi - else - as_fn_error $? "input file $ac_prefix_conf_INP does not exist - skip generating $ac_prefix_conf_OUT" "$LINENO" 5 - fi - rm -f conftest.* -fi - ;; - - esac -done # for ac_tag - - -as_fn_exit 0 -_ACEOF -ac_clean_files=$ac_clean_files_save - -test $ac_write_fail = 0 || - as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 - - -# configure is writing to config.log, and then calls config.status. -# config.status does its own redirection, appending to config.log. -# Unfortunately, on DOS this fails, as config.log is still kept open -# by configure, so config.status won't be able to write to it; its -# output is simply discarded. So we exec the FD to /dev/null, -# effectively closing config.log, so it can be properly (re)opened and -# appended to by config.status. When coming back to configure, we -# need to make the FD available again. -if test "$no_create" != yes; then - ac_cs_success=: - ac_config_status_args= - test "$silent" = yes && - ac_config_status_args="$ac_config_status_args --quiet" - exec 5>/dev/null - $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false - exec 5>>config.log - # Use ||, not &&, to avoid exiting from the if with $? = 1, which - # would make configure fail if this is the last instruction. - $ac_cs_success || as_fn_exit 1 -fi -if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then - { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 -printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} -fi - - diff --git a/gap/attr.gd b/gap/attr.gd index 09d171f6a..b21fb8282 100644 --- a/gap/attr.gd +++ b/gap/attr.gd @@ -90,7 +90,8 @@ DeclareAttributeThatReturnsDigraph("DigraphReverse", IsDigraph); DeclareAttributeThatReturnsDigraph("DigraphDual", IsDigraph); DeclareAttributeThatReturnsDigraph("ReducedDigraph", IsDigraph); DeclareAttributeThatReturnsDigraph("DigraphRemoveAllMultipleEdges", IsDigraph); -DeclareAttributeThatReturnsDigraph("DigraphRemoveAllEdges", IsDigraph); +DeclareAttributeThatReturnsDigraph("DigraphRemoveAllEdges", IsImmutableDigraph); +DeclareAttributeThatReturnsDigraph("DigraphRemoveAllEdges", IsMutableDigraph); # TODO replace all DeclareOperations below to # DeclareAttributeThatReturnsDigraph, and remove the *Attr versions. From c6dabf908d4236d41722935756af955f1bae0ae3 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 8 Oct 2025 15:35:51 +0100 Subject: [PATCH 05/15] More changes made to DigraphRemoveAllEdges --- gap/attr.gd | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/gap/attr.gd b/gap/attr.gd index b21fb8282..09d171f6a 100644 --- a/gap/attr.gd +++ b/gap/attr.gd @@ -90,8 +90,7 @@ DeclareAttributeThatReturnsDigraph("DigraphReverse", IsDigraph); DeclareAttributeThatReturnsDigraph("DigraphDual", IsDigraph); DeclareAttributeThatReturnsDigraph("ReducedDigraph", IsDigraph); DeclareAttributeThatReturnsDigraph("DigraphRemoveAllMultipleEdges", IsDigraph); -DeclareAttributeThatReturnsDigraph("DigraphRemoveAllEdges", IsImmutableDigraph); -DeclareAttributeThatReturnsDigraph("DigraphRemoveAllEdges", IsMutableDigraph); +DeclareAttributeThatReturnsDigraph("DigraphRemoveAllEdges", IsDigraph); # TODO replace all DeclareOperations below to # DeclareAttributeThatReturnsDigraph, and remove the *Attr versions. From c49873465176522909b35cb13c9d1dafbe0c566f Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 19 Nov 2025 14:42:37 +0000 Subject: [PATCH 06/15] DigraphEdgeConnectivity and additional functions (Dominating Set functions) added --- gap/oper.gd | 2 + gap/oper.gi | 37 +++++++++ gap/weights.gd | 4 + gap/weights.gi | 194 ++++++++++++++++++++++++++++++++++++++++++++ tst/testinstall.tst | 23 ++++++ 5 files changed, 260 insertions(+) diff --git a/gap/oper.gd b/gap/oper.gd index f6a37e0f8..f0cb7c3f0 100644 --- a/gap/oper.gd +++ b/gap/oper.gd @@ -154,6 +154,8 @@ DeclareOperation("IsOrderIdeal", [IsDigraph, IsList]); DeclareOperation("IsOrderFilter", [IsDigraph, IsList]); DeclareOperation("Dominators", [IsDigraph, IsPosInt]); DeclareOperation("DominatorTree", [IsDigraph, IsPosInt]); +DeclareOperation("DigraphDominatingSet", [IsDigraph]); +DeclareOperation("DigraphGetNeighbourhood", [IsDigraph, IsList]); DeclareOperation("DigraphCycleBasis", [IsDigraph]); # 10. Operations for vertices . . . diff --git a/gap/oper.gi b/gap/oper.gi index 3876db50e..be62469ac 100644 --- a/gap/oper.gi +++ b/gap/oper.gi @@ -2522,6 +2522,43 @@ function(D, root) return result; end); +# For calculating a dominating set for a digraph +InstallMethod(DigraphDominatingSet, "for a digraph", +[IsDigraph], +function(digraph) + local D, neighbourhood, VerticesLeft, Vertices; + + Vertices := [1 .. DigraphNrVertices(digraph)]; + Shuffle(Vertices); + + # Shuffling not technically necessary - may be better to just do D := [1]? + D := [Vertices[1]]; + neighbourhood := DigraphGetNeighbourhood(digraph, D); + VerticesLeft := Difference(Vertices, Union(neighbourhood, D)); + + while not IsEmpty(VerticesLeft) do; + Append(D, [VerticesLeft[1]]); + neighbourhood := DigraphGetNeighbourhood(digraph, D); + VerticesLeft := Difference(Vertices, Union(neighbourhood, D)); + od; + + return D; +end); + +# For getting the neighbourhood for a given List of Vertices in a Digraph +InstallMethod(DigraphGetNeighbourhood, "for a digraph and a List of vertices", +[IsDigraph, IsList], +function(digraph, vertices) + local v, neighbourhood; + neighbourhood := []; + for v in vertices do + neighbourhood := Difference(Union(neighbourhood, + OutNeighbours(digraph)[v]), vertices); + od; + + return neighbourhood; +end); + # Computes the fundamental cycle basis of a symmetric digraph # First, notice that the cycle space is composed of orthogonal subspaces # corresponding to the cycle spaces of the connected components. diff --git a/gap/weights.gd b/gap/weights.gd index 7d11bf5f7..984ea67d3 100644 --- a/gap/weights.gd +++ b/gap/weights.gd @@ -39,6 +39,10 @@ DeclareGlobalFunction("DIGRAPHS_Edge_Weighted_Dijkstra"); DeclareOperation("DigraphMaximumFlow", [IsDigraph and HasEdgeWeights, IsPosInt, IsPosInt]); +# Digraph Edge Connectivity +DeclareOperation("DigraphEdgeConnectivity", [IsDigraph]); +DeclareOperation("DigraphEdgeConnectivityDS", [IsDigraph]); + # 6. Random edge weighted digraphs DeclareOperation("RandomUniqueEdgeWeightedDigraph", [IsPosInt]); DeclareOperation("RandomUniqueEdgeWeightedDigraph", [IsPosInt, IsFloat]); diff --git a/gap/weights.gi b/gap/weights.gi index 5b246b002..b623d980d 100644 --- a/gap/weights.gi +++ b/gap/weights.gi @@ -772,6 +772,200 @@ function(D, start, destination) return flows; end); +# DigraphEdgeConnectivity calculated using Spanning Trees +InstallMethod(DigraphEdgeConnectivity, "for a digraph", +[IsDigraph], +function(digraph) + local w, weights, EdgeD, VerticesED, min, u, v, + sum, a, b, st, added, NeighboursV, Edges, notadded, + max, NextVertex, notAddedNeighbours, non_leaf; + + if DigraphNrVertices(digraph) = 1 then + return 0; + fi; + + if DigraphNrStronglyConnectedComponents(digraph) > 1 then + return 0; + fi; + + weights := List([1 .. DigraphNrVertices(digraph)], + x -> List([1 .. Length(OutNeighbours(digraph)[x])], + y -> 1)); + EdgeD := EdgeWeightedDigraph(digraph, weights); + VerticesED := [1 .. DigraphNrVertices(EdgeD)]; + + min := -1; + + # Algorithm 4: Constructing a Spanning Tree with a large numbers of leaves + + st := EmptyDigraph(DigraphNrVertices(EdgeD)); + v := 1; + added := [v]; + + while DigraphNrEdges(st) < DigraphNrVertices(EdgeD) - 1 do + + # Add all edges incident from v + NeighboursV := OutNeighbors(EdgeD)[v]; + + Edges := List([1 .. Length(NeighboursV)], + x -> [v, OutNeighbours(EdgeD)[v][x]]); + + Edges := Difference(Edges, [[v, v]]); + + st := DigraphAddEdges(st, Edges); + Append(added, Difference(OutNeighbours(EdgeD)[v], added)); + + # Select the neighbour to v with the highest number of not-added neighbours: + + notadded := Difference(VerticesED, added); + max := 0; + NextVertex := v; + + # Preventing infinite iteration if the current vertex has no neighbours + if (Length(NeighboursV) = 0) then + # Pick from a vertex that hasn't been added yet + NextVertex := notadded[1]; + fi; + + for w in Difference(NeighboursV, [v]) do; + notAddedNeighbours := Intersection(notadded, OutNeighbours(EdgeD)[w]); + if (Length(notAddedNeighbours) > max) then + max := Length(notAddedNeighbours); + NextVertex := w; + fi; + od; + + v := NextVertex; + + od; + + # Algorithm 5: Using Algorithm 4 to find the Edge Connectivity + + non_leaf := []; + for b in VerticesED do + if not IsEmpty(OutNeighbours(st)[b]) then + Append(non_leaf, [b]); + fi; + od; + + # Get the smaller of non_leaf and Difference(Vertices in EdgeD, non_leaf) + + if (Length(non_leaf) > 1) then + u := non_leaf[1]; + + for v in [2 .. Length(non_leaf)] do + a := DigraphMaximumFlow(EdgeD, u, non_leaf[v])[u]; + b := DigraphMaximumFlow(EdgeD, non_leaf[v], u)[non_leaf[v]]; + + sum := Minimum(Sum(a), Sum(b)); + if (sum < min or min = -1) then + min := sum; + fi; + + if (sum = 0) then + return 0; + fi; + od; + + min := Minimum(min, Minimum(Minimum(OutDegrees(EdgeD)), + Minimum(InDegrees(EdgeD)))); + else + # In the case of spanning trees with only one non-leaf node, + # the above algorithm does not work + + u := 1; + for v in [2 .. DigraphNrVertices(EdgeD)] do + a := DigraphMaximumFlow(EdgeD, u, v)[u]; + b := DigraphMaximumFlow(EdgeD, v, u)[v]; + + sum := Minimum(Sum(a), Sum(b)); + if (sum < min or min = -1) then + min := sum; + fi; + + if (sum = 0) then + return 0; + fi; + + od; + fi; + + if (min = -1) then + return 0; + fi; + + return min; +end); + +# Digraph EdgeConnectivity calculated with Dominating Sets +InstallMethod(DigraphEdgeConnectivityDS, "for a digraph", +[IsDigraph], +function(digraph) + # Form an identical but edge weighted digraph with all edge weights as 1: + local weights, i, u, v, w, neighbourhood, EdgeD, + maxFlow, min, sum, a, b, V, added, st, non_leaf, max, + notAddedNeighbours, notadded, NextVertex, NeighboursV, + neighbour, Edges, D, VerticesLeft, VerticesED; + + if DigraphNrVertices(digraph) = 1 then + return 0; + fi; + + if DigraphNrStronglyConnectedComponents(digraph) > 1 then + return 0; + fi; + + weights := List([1 .. DigraphNrVertices(digraph)], + x -> List([1 .. Length(OutNeighbours(digraph)[x])], + y -> 1)); + EdgeD := EdgeWeightedDigraph(digraph, weights); + + min := -1; + + # Algorithm 7: Creating a dominating set of the digraph + + D := DigraphDominatingSet(digraph); + + # Algorithm 6: + + if Length(D) > 1 then + + v := D[1]; + for i in [2 .. Length(D)] do + w := D[i]; + a := DigraphMaximumFlow(EdgeD, v, w)[v]; + b := DigraphMaximumFlow(EdgeD, w, v)[w]; + + sum := Minimum(Sum(a), Sum(b)); + if (sum < min or min = -1) then + min := sum; + fi; + od; + + else + # If the dominating set of EdgeD is of Length 1, + # the above algorithm will not work + + u := 1; + + for v in [2 .. DigraphNrVertices(EdgeD)] do + a := DigraphMaximumFlow(EdgeD, u, v)[u]; + b := DigraphMaximumFlow(EdgeD, v, u)[v]; + + sum := Minimum(Sum(a), Sum(b)); + if (sum < min or min = -1) then + min := sum; + fi; + + od; + fi; + + return Minimum(min, + Minimum(Minimum(OutDegrees(EdgeD)), + Minimum(InDegrees(EdgeD)))); + +end); + ############################################################################# # 6. Random edge weighted digraphs ############################################################################# diff --git a/tst/testinstall.tst b/tst/testinstall.tst index 291b09b7a..58ff37f80 100644 --- a/tst/testinstall.tst +++ b/tst/testinstall.tst @@ -550,6 +550,29 @@ gap> OutNeighbours(D); gap> OutNeighbours(C); [ [ 2, 3, 4 ], [ 1, 3, 4, 5 ], [ 1, 2 ], [ 5 ], [ 4 ] ] +# DigraphEdgeConnectivity +gap> D := Digraph([[2, 3, 4], [1, 3, 4], [1, 2], [2, 3]]);; +gap> DigraphEdgeConnectivity(D); +2 +gap> C := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; +gap> DigraphEdgeConnectivity(C); +1 +gap> D := Digraph([[], [1, 2], [2]]);; +gap> DigraphEdgeConnectivity(D); +0 +gap> C := Digraph([[3, 4], [1, 3, 4], [2], [3]]);; +gap> DigraphEdgeConnectivity(C); +1 +gap> D := RandomDigraph(1);; +gap> DigraphEdgeConnectivity(D); +0 +gap> C := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; +gap> DigraphEdgeConnectivity(C); +1 +gap> D := Digraph([[ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ]]);; +gap> DigraphEdgeConnectivity(D); +4 + # gap> DIGRAPHS_StopTest(); gap> STOP_TEST("Digraphs package: testinstall.tst", 0); From 0634eeddfd48a8870eef12f95130ff70e939a8e9 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Fri, 21 Nov 2025 11:21:21 +0000 Subject: [PATCH 07/15] Added explanations for each Algorithm and edited gapdocs + tests for implemented methods --- doc/oper.xml | 40 ++++++++++++++++++++++++++++++++++++++++ doc/weights.xml | 25 +++++++++++++++++++++++++ gap/oper.gi | 2 ++ gap/weights.gi | 37 ++++++++++++++++++++++++++++--------- tst/standard/oper.tst | 15 +++++++++++++++ tst/standard/weights.tst | 14 ++++++++++++++ tst/testinstall.tst | 9 --------- 7 files changed, 124 insertions(+), 18 deletions(-) diff --git a/doc/oper.xml b/doc/oper.xml index 0930e8f3c..8a8940e5b 100644 --- a/doc/oper.xml +++ b/doc/oper.xml @@ -1954,6 +1954,46 @@ rec( idom := [ 2, fail, 2, 2, 2 ], preorder := [ 2, 1, 3, 4, 5 ] ) <#/GAPDoc> +<#GAPDoc Label="DigraphDominatingSet"> + + + A List + + This creates a dominating set of digraph, which is a subset of the vertices in + digraph such that the neighbourhood of this subset of vertices is equal to all + the vertices in digraph.

+ + The domating set returned will be one of potentially multiple possible dominating sets for the digraph. + DigraphDominatingSet(D); +[ 4, 1 ] +gap> DigraphDominatingSet(D); +[ 1 ]]]> + + +<#/GAPDoc> + +<#GAPDoc Label="DigraphGetNeighbourhood"> + + + A List + + This returns the set of vertices that are adjacent to a vertex in vertices, + not including any vertices that exist in vertices. + D := Digraph([[2, 3, 4], [1], [], []]);; +gap> DigraphGetNeighbourhood(D, [1]); +[ 2, 3, 4 ] +gap> DigraphGetNeighbourhood(D, [1, 2]); +[ 3, 4 ] +gap> D := Digraph([[2, 3, 4], [], [], []]);; +gap> DigraphGetNeighbourhood(D, [2]); +[ ]]]> + + +<#/GAPDoc> + <#GAPDoc Label="PartialOrderDigraphMeetOfVertices"> Sum(flow[1]); <#/GAPDoc> +<#GAPDoc Label="DigraphEdgeConnectivity"> + + + An integer + + This returns a record representing the edge connectivity of digraph.

+ + It makes use of DigraphMaximumFlow(digraph), by constructing an edge-weighted Digraph + with edge weights of 1, then using the Max-flow min-cut theorem to determine the size of the minimum cut. + For a digraph, the minimum cut is the set of edges that need to be removed to ensure the digraph is + no longer Strongly Connected.

+ D := Digraph([[2, 3, 4], [1, 3, 4], [1, 2], [2, 3]]);; +gap> DigraphEdgeConnectivity(D); +2 +gap> D := Digraph([[], [1, 2], [2]]);; +gap> DigraphEdgeConnectivity(D); +0 +gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; +gap> DigraphEdgeConnectivity(D); +4]]> + + +<#/GAPDoc> + <#GAPDoc Label="RandomUniqueEdgeWeightedDigraph"> diff --git a/gap/oper.gi b/gap/oper.gi index be62469ac..095c59102 100644 --- a/gap/oper.gi +++ b/gap/oper.gi @@ -2523,6 +2523,8 @@ function(D, root) end); # For calculating a dominating set for a digraph +# Algorithm 7 in : +# https://www.cse.msu.edu/~cse835/Papers/Graph_connectivity_revised.pdf InstallMethod(DigraphDominatingSet, "for a digraph", [IsDigraph], function(digraph) diff --git a/gap/weights.gi b/gap/weights.gi index b623d980d..576d98788 100644 --- a/gap/weights.gi +++ b/gap/weights.gi @@ -772,7 +772,27 @@ function(D, start, destination) return flows; end); -# DigraphEdgeConnectivity calculated using Spanning Trees +############################################################################# +# Digraph Edge Connectivity +############################################################################# + +# Algorithms constructed off the algorithms detailed in: +# https://www.cse.msu.edu/~cse835/Papers/Graph_connectivity_revised.pdf +# Each Algorithm uses a different method to decrease the time complexity, +# of calculating Edge Connectivity, though all make use of DigraphMaximumFlow() +# due to the Max-Flow, Min-Cut Theorem + +# Algorithm 1: Calculating the Maximum Flow of every possible source and sink +# Algorithm 2: Calculating the Maximum Flow to all sinks of an arbitrary source +# Algorithm 3: Finding Maximum Flow within the non-leaves of a Spanning Tree +# Algorithm 4: Constructing a spanning tree with a high number of leaves +# Algorithm 5: Using the spanning tree^ to find Maximum Flow within non-leaves +# Algorithm 6: Finding Maximum Flow within a dominating set of the digraph +# Algorithm 7: Constructing a dominating set for use in Algorithm 6 + +# Algorithms 4-7 are used below: + +# DigraphEdgeConnectivity calculated using Spanning Trees (Algorithm 4 & 5) InstallMethod(DigraphEdgeConnectivity, "for a digraph", [IsDigraph], function(digraph) @@ -816,7 +836,6 @@ function(digraph) Append(added, Difference(OutNeighbours(EdgeD)[v], added)); # Select the neighbour to v with the highest number of not-added neighbours: - notadded := Difference(VerticesED, added); max := 0; NextVertex := v; @@ -839,8 +858,8 @@ function(digraph) od; - # Algorithm 5: Using Algorithm 4 to find the Edge Connectivity - + # Algorithm 5: Iterating through the non-leaves of the + # Spanning Tree created in Algorithm 4 to find the Edge Connectivity non_leaf := []; for b in VerticesED do if not IsEmpty(OutNeighbours(st)[b]) then @@ -848,8 +867,6 @@ function(digraph) fi; od; - # Get the smaller of non_leaf and Difference(Vertices in EdgeD, non_leaf) - if (Length(non_leaf) > 1) then u := non_leaf[1]; @@ -872,6 +889,7 @@ function(digraph) else # In the case of spanning trees with only one non-leaf node, # the above algorithm does not work + # Revert to iterating through all vertices of the original digraph u := 1; for v in [2 .. DigraphNrVertices(EdgeD)] do @@ -897,7 +915,7 @@ function(digraph) return min; end); -# Digraph EdgeConnectivity calculated with Dominating Sets +# Digraph EdgeConnectivity calculated with Dominating Sets (Algorithm 6-7) InstallMethod(DigraphEdgeConnectivityDS, "for a digraph", [IsDigraph], function(digraph) @@ -923,10 +941,10 @@ function(digraph) min := -1; # Algorithm 7: Creating a dominating set of the digraph - + D := DigraphDominatingSet(digraph); - # Algorithm 6: + # Algorithm 6: Using the dominating set created to determine the Maximum Flow if Length(D) > 1 then @@ -945,6 +963,7 @@ function(digraph) else # If the dominating set of EdgeD is of Length 1, # the above algorithm will not work + # Revert to iterating through all vertices of the original digraph u := 1; diff --git a/tst/standard/oper.tst b/tst/standard/oper.tst index dfbdbd3ef..0a509683c 100644 --- a/tst/standard/oper.tst +++ b/tst/standard/oper.tst @@ -2861,6 +2861,21 @@ rec( idom := [ fail ], preorder := [ 1 ] ) gap> DominatorTree(D, 6); rec( idom := [ ,,,,, fail ], preorder := [ 6 ] ) +# DigraphGetNeighbourhood +gap> D := Digraph([[2, 3, 4], [1], [], []]);; +gap> DigraphGetNeighbourhood(D, [1]); +[ 2, 3, 4 ] +gap> DigraphGetNeighbourhood(D, [1, 2]); +[ 3, 4 ] +gap> D := Digraph([[2, 3, 4], [], [], []]);; +gap> DigraphGetNeighbourhood(D, [2]); +[ ] +gap> D := Digraph([[2], [3], [4], [1]]);; +gap> DigraphGetNeighbourhood(D, [1]); +[ 2 ] +gap> DigraphGetNeighbourhood(D, [1, 3]); +[ 2, 4 ] + # IsDigraphPath gap> D := Digraph(IsMutableDigraph, Combinations([1 .. 5]), IsSubset); diff --git a/tst/standard/weights.tst b/tst/standard/weights.tst index 59a632140..8f45f9f5a 100644 --- a/tst/standard/weights.tst +++ b/tst/standard/weights.tst @@ -368,6 +368,20 @@ gap> gr := EdgeWeightedDigraph([[2], [3, 6], [4], [1, 6], [1, 3], []], gap> DigraphMaximumFlow(gr, 5, 6); [ [ 10 ], [ 3, 7 ], [ 7 ], [ 0, 7 ], [ 10, 4 ], [ ] ] +# EdgeConnectivity +gap> d := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; +gap> DigraphEdgeConnectivity(d); +1 +gap> D := RandomDigraph(1);; +gap> DigraphEdgeConnectivity(D); +0 +gap> d := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; +gap> DigraphEdgeConnectivity(d); +1 +gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; +gap> DigraphEdgeConnectivity(D); +4 + ############################################################################# # 6. Random edge-weighted digraphs ############################################################################# diff --git a/tst/testinstall.tst b/tst/testinstall.tst index 58ff37f80..33ba4ff42 100644 --- a/tst/testinstall.tst +++ b/tst/testinstall.tst @@ -554,21 +554,12 @@ gap> OutNeighbours(C); gap> D := Digraph([[2, 3, 4], [1, 3, 4], [1, 2], [2, 3]]);; gap> DigraphEdgeConnectivity(D); 2 -gap> C := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; -gap> DigraphEdgeConnectivity(C); -1 gap> D := Digraph([[], [1, 2], [2]]);; gap> DigraphEdgeConnectivity(D); 0 gap> C := Digraph([[3, 4], [1, 3, 4], [2], [3]]);; gap> DigraphEdgeConnectivity(C); 1 -gap> D := RandomDigraph(1);; -gap> DigraphEdgeConnectivity(D); -0 -gap> C := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; -gap> DigraphEdgeConnectivity(C); -1 gap> D := Digraph([[ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ]]);; gap> DigraphEdgeConnectivity(D); 4 From 7719d5224ec2f47312f685afe24a3b31173147e8 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 26 Nov 2025 15:22:09 +0000 Subject: [PATCH 08/15] Minor gaplint/test changes made --- gap/weights.gi | 1 - tst/standard/oper.tst | 4 ---- tst/testinstall.tst | 2 +- 3 files changed, 1 insertion(+), 6 deletions(-) diff --git a/gap/weights.gi b/gap/weights.gi index 576d98788..5a46214c8 100644 --- a/gap/weights.gi +++ b/gap/weights.gi @@ -941,7 +941,6 @@ function(digraph) min := -1; # Algorithm 7: Creating a dominating set of the digraph - D := DigraphDominatingSet(digraph); # Algorithm 6: Using the dominating set created to determine the Maximum Flow diff --git a/tst/standard/oper.tst b/tst/standard/oper.tst index 0a509683c..1e087fbe5 100644 --- a/tst/standard/oper.tst +++ b/tst/standard/oper.tst @@ -135,10 +135,6 @@ gap> M ^ p = OnDigraphs(M, p); true # DigraphRemoveAllEdges: for a digraph -gap> gr := Digraph(IsImmutableDigraph, [[2, 3], [3], [4], []]); - -gap> DigraphRemoveAllEdges(gr); -Error, Argument must be a mutable digraph gap> gr2 := Digraph(IsMutableDigraph, [[2, 3], [3], [4], []]); gap> DigraphRemoveAllEdges(gr2); diff --git a/tst/testinstall.tst b/tst/testinstall.tst index 33ba4ff42..02224e66c 100644 --- a/tst/testinstall.tst +++ b/tst/testinstall.tst @@ -560,7 +560,7 @@ gap> DigraphEdgeConnectivity(D); gap> C := Digraph([[3, 4], [1, 3, 4], [2], [3]]);; gap> DigraphEdgeConnectivity(C); 1 -gap> D := Digraph([[ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ], [ 1, 2, 3, 4, 5 ]]);; +gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; gap> DigraphEdgeConnectivity(D); 4 From c0e406830c0c13b49bc78c6d9e966ac3a1ab6757 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Sat, 29 Nov 2025 12:04:14 +0000 Subject: [PATCH 09/15] Added DigraphEdgeConnectivityDS tests to weights.tst --- tst/standard/weights.tst | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tst/standard/weights.tst b/tst/standard/weights.tst index 8f45f9f5a..a8bb27bfe 100644 --- a/tst/standard/weights.tst +++ b/tst/standard/weights.tst @@ -382,6 +382,20 @@ gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, gap> DigraphEdgeConnectivity(D); 4 +# EdgeConnectivity (Dominating Set Algorithm) +gap> d := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; +gap> DigraphEdgeConnectivityDS(d); +1 +gap> D := RandomDigraph(1);; +gap> DigraphEdgeConnectivityDS(D); +0 +gap> d := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; +gap> DigraphEdgeConnectivityDS(d); +1 +gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; +gap> DigraphEdgeConnectivityDS(D); +4 + ############################################################################# # 6. Random edge-weighted digraphs ############################################################################# From 4f36fde4e924a90c9f0816527f88794657bd10ad Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Sat, 29 Nov 2025 12:48:23 +0000 Subject: [PATCH 10/15] Added tests for DigraphDominatingSet() --- tst/standard/oper.tst | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/tst/standard/oper.tst b/tst/standard/oper.tst index 1e087fbe5..2bba479ca 100644 --- a/tst/standard/oper.tst +++ b/tst/standard/oper.tst @@ -3351,6 +3351,24 @@ gap> DigraphEdges(D); gap> DigraphVertexLabels(D); [ 1, 2, 3, 6, [ 4, 5 ] ] +# DigraphDominatingSet +gap> d := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; +gap> p := DigraphDominatingSet(d);; +gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +true +gap> d := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; +gap> p := DigraphDominatingSet(d);; +gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +true +gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; +gap> p := DigraphDominatingSet(d);; +gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +true +gap> D := RandomDigraph(1);; +gap> p := DigraphDominatingSet(d);; +gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +true + # gap> DIGRAPHS_StopTest(); gap> STOP_TEST("Digraphs package: standard/oper.tst", 0); From f15c6eadea9a20bb9fcd9447a3bec5fcf7f8e99f Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Mon, 1 Dec 2025 18:27:12 +0000 Subject: [PATCH 11/15] Fixes made to Spanning Tree Algorithm + tests added to weights.tst --- gap/weights.gi | 23 ++++++++--------------- tst/standard/weights.tst | 6 ++++++ 2 files changed, 14 insertions(+), 15 deletions(-) diff --git a/gap/weights.gi b/gap/weights.gi index 5a46214c8..59a0241f0 100644 --- a/gap/weights.gi +++ b/gap/weights.gi @@ -821,16 +821,18 @@ function(digraph) st := EmptyDigraph(DigraphNrVertices(EdgeD)); v := 1; added := [v]; + notadded := Difference(VerticesED, added); - while DigraphNrEdges(st) < DigraphNrVertices(EdgeD) - 1 do + while (DigraphNrEdges(st) < DigraphNrVertices(EdgeD) - 1) and + Length(notadded) > 0 do # Add all edges incident from v - NeighboursV := OutNeighbors(EdgeD)[v]; + NeighboursV := Difference(OutNeighbors(EdgeD)[v], added); Edges := List([1 .. Length(NeighboursV)], - x -> [v, OutNeighbours(EdgeD)[v][x]]); + x -> [v, NeighboursV[x]]); - Edges := Difference(Edges, [[v, v]]); + # Edges := Difference(Edges, [[v, v]]); st := DigraphAddEdges(st, Edges); Append(added, Difference(OutNeighbours(EdgeD)[v], added)); @@ -840,13 +842,13 @@ function(digraph) max := 0; NextVertex := v; - # Preventing infinite iteration if the current vertex has no neighbours + # Preventing infinite iteration if v has no non-added neighbours if (Length(NeighboursV) = 0) then # Pick from a vertex that hasn't been added yet NextVertex := notadded[1]; fi; - for w in Difference(NeighboursV, [v]) do; + for w in NeighboursV do; notAddedNeighbours := Intersection(notadded, OutNeighbours(EdgeD)[w]); if (Length(notAddedNeighbours) > max) then max := Length(notAddedNeighbours); @@ -878,10 +880,6 @@ function(digraph) if (sum < min or min = -1) then min := sum; fi; - - if (sum = 0) then - return 0; - fi; od; min := Minimum(min, Minimum(Minimum(OutDegrees(EdgeD)), @@ -900,11 +898,6 @@ function(digraph) if (sum < min or min = -1) then min := sum; fi; - - if (sum = 0) then - return 0; - fi; - od; fi; diff --git a/tst/standard/weights.tst b/tst/standard/weights.tst index a8bb27bfe..d18a4e989 100644 --- a/tst/standard/weights.tst +++ b/tst/standard/weights.tst @@ -381,6 +381,9 @@ gap> DigraphEdgeConnectivity(d); gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; gap> DigraphEdgeConnectivity(D); 4 +gap> D := DigraphFromGraph6String("I~~~~~~~w");; +gap> DigraphEdgeConnectivity(D); +9 # EdgeConnectivity (Dominating Set Algorithm) gap> d := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; @@ -395,6 +398,9 @@ gap> DigraphEdgeConnectivityDS(d); gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; gap> DigraphEdgeConnectivityDS(D); 4 +gap> D := DigraphFromGraph6String("I~~~~~~~w");; +gap> DigraphEdgeConnectivityDS(D); +9 ############################################################################# # 6. Random edge-weighted digraphs From 462d1a0cff5570835c29cd974be2ddcea7a6394c Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 3 Dec 2025 14:22:39 +0000 Subject: [PATCH 12/15] Tests added to testinstall.tst for DigraphEdgeConnectivityDS() --- tst/testinstall.tst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tst/testinstall.tst b/tst/testinstall.tst index 02224e66c..f8e8ce4b3 100644 --- a/tst/testinstall.tst +++ b/tst/testinstall.tst @@ -554,15 +554,23 @@ gap> OutNeighbours(C); gap> D := Digraph([[2, 3, 4], [1, 3, 4], [1, 2], [2, 3]]);; gap> DigraphEdgeConnectivity(D); 2 +gap> DigraphEdgeConnectivityDS(D); +2 gap> D := Digraph([[], [1, 2], [2]]);; gap> DigraphEdgeConnectivity(D); 0 +gap> DigraphEdgeConnectivityDS(D); +0 gap> C := Digraph([[3, 4], [1, 3, 4], [2], [3]]);; gap> DigraphEdgeConnectivity(C); 1 +gap> DigraphEdgeConnectivityDS(C); +1 gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; gap> DigraphEdgeConnectivity(D); 4 +gap> DigraphEdgeConnectivityDS(D); +4 # gap> DIGRAPHS_StopTest(); From 9238e888fccd3d2b5f28593c5b8e1bed0c2518bf Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 3 Dec 2025 15:40:18 +0000 Subject: [PATCH 13/15] Removing Spanning Tree Algorithm --- gap/weights.gd | 1 - gap/weights.gi | 118 +-------------------------------------- tst/standard/weights.tst | 17 ------ tst/testinstall.tst | 8 --- 4 files changed, 1 insertion(+), 143 deletions(-) diff --git a/gap/weights.gd b/gap/weights.gd index 984ea67d3..c266616a2 100644 --- a/gap/weights.gd +++ b/gap/weights.gd @@ -41,7 +41,6 @@ DeclareOperation("DigraphMaximumFlow", # Digraph Edge Connectivity DeclareOperation("DigraphEdgeConnectivity", [IsDigraph]); -DeclareOperation("DigraphEdgeConnectivityDS", [IsDigraph]); # 6. Random edge weighted digraphs DeclareOperation("RandomUniqueEdgeWeightedDigraph", [IsPosInt]); diff --git a/gap/weights.gi b/gap/weights.gi index 59a0241f0..44498988e 100644 --- a/gap/weights.gi +++ b/gap/weights.gi @@ -792,124 +792,8 @@ end); # Algorithms 4-7 are used below: -# DigraphEdgeConnectivity calculated using Spanning Trees (Algorithm 4 & 5) -InstallMethod(DigraphEdgeConnectivity, "for a digraph", -[IsDigraph], -function(digraph) - local w, weights, EdgeD, VerticesED, min, u, v, - sum, a, b, st, added, NeighboursV, Edges, notadded, - max, NextVertex, notAddedNeighbours, non_leaf; - - if DigraphNrVertices(digraph) = 1 then - return 0; - fi; - - if DigraphNrStronglyConnectedComponents(digraph) > 1 then - return 0; - fi; - - weights := List([1 .. DigraphNrVertices(digraph)], - x -> List([1 .. Length(OutNeighbours(digraph)[x])], - y -> 1)); - EdgeD := EdgeWeightedDigraph(digraph, weights); - VerticesED := [1 .. DigraphNrVertices(EdgeD)]; - - min := -1; - - # Algorithm 4: Constructing a Spanning Tree with a large numbers of leaves - - st := EmptyDigraph(DigraphNrVertices(EdgeD)); - v := 1; - added := [v]; - notadded := Difference(VerticesED, added); - - while (DigraphNrEdges(st) < DigraphNrVertices(EdgeD) - 1) and - Length(notadded) > 0 do - - # Add all edges incident from v - NeighboursV := Difference(OutNeighbors(EdgeD)[v], added); - - Edges := List([1 .. Length(NeighboursV)], - x -> [v, NeighboursV[x]]); - - # Edges := Difference(Edges, [[v, v]]); - - st := DigraphAddEdges(st, Edges); - Append(added, Difference(OutNeighbours(EdgeD)[v], added)); - - # Select the neighbour to v with the highest number of not-added neighbours: - notadded := Difference(VerticesED, added); - max := 0; - NextVertex := v; - - # Preventing infinite iteration if v has no non-added neighbours - if (Length(NeighboursV) = 0) then - # Pick from a vertex that hasn't been added yet - NextVertex := notadded[1]; - fi; - - for w in NeighboursV do; - notAddedNeighbours := Intersection(notadded, OutNeighbours(EdgeD)[w]); - if (Length(notAddedNeighbours) > max) then - max := Length(notAddedNeighbours); - NextVertex := w; - fi; - od; - - v := NextVertex; - - od; - - # Algorithm 5: Iterating through the non-leaves of the - # Spanning Tree created in Algorithm 4 to find the Edge Connectivity - non_leaf := []; - for b in VerticesED do - if not IsEmpty(OutNeighbours(st)[b]) then - Append(non_leaf, [b]); - fi; - od; - - if (Length(non_leaf) > 1) then - u := non_leaf[1]; - - for v in [2 .. Length(non_leaf)] do - a := DigraphMaximumFlow(EdgeD, u, non_leaf[v])[u]; - b := DigraphMaximumFlow(EdgeD, non_leaf[v], u)[non_leaf[v]]; - - sum := Minimum(Sum(a), Sum(b)); - if (sum < min or min = -1) then - min := sum; - fi; - od; - - min := Minimum(min, Minimum(Minimum(OutDegrees(EdgeD)), - Minimum(InDegrees(EdgeD)))); - else - # In the case of spanning trees with only one non-leaf node, - # the above algorithm does not work - # Revert to iterating through all vertices of the original digraph - - u := 1; - for v in [2 .. DigraphNrVertices(EdgeD)] do - a := DigraphMaximumFlow(EdgeD, u, v)[u]; - b := DigraphMaximumFlow(EdgeD, v, u)[v]; - - sum := Minimum(Sum(a), Sum(b)); - if (sum < min or min = -1) then - min := sum; - fi; - od; - fi; - - if (min = -1) then - return 0; - fi; - - return min; -end); - # Digraph EdgeConnectivity calculated with Dominating Sets (Algorithm 6-7) -InstallMethod(DigraphEdgeConnectivityDS, "for a digraph", +InstallMethod(DigraphEdgeConnectivity, "for a digraph", [IsDigraph], function(digraph) # Form an identical but edge weighted digraph with all edge weights as 1: diff --git a/tst/standard/weights.tst b/tst/standard/weights.tst index d18a4e989..23d28a0a3 100644 --- a/tst/standard/weights.tst +++ b/tst/standard/weights.tst @@ -385,23 +385,6 @@ gap> D := DigraphFromGraph6String("I~~~~~~~w");; gap> DigraphEdgeConnectivity(D); 9 -# EdgeConnectivity (Dominating Set Algorithm) -gap> d := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; -gap> DigraphEdgeConnectivityDS(d); -1 -gap> D := RandomDigraph(1);; -gap> DigraphEdgeConnectivityDS(D); -0 -gap> d := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; -gap> DigraphEdgeConnectivityDS(d); -1 -gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; -gap> DigraphEdgeConnectivityDS(D); -4 -gap> D := DigraphFromGraph6String("I~~~~~~~w");; -gap> DigraphEdgeConnectivityDS(D); -9 - ############################################################################# # 6. Random edge-weighted digraphs ############################################################################# diff --git a/tst/testinstall.tst b/tst/testinstall.tst index f8e8ce4b3..02224e66c 100644 --- a/tst/testinstall.tst +++ b/tst/testinstall.tst @@ -554,23 +554,15 @@ gap> OutNeighbours(C); gap> D := Digraph([[2, 3, 4], [1, 3, 4], [1, 2], [2, 3]]);; gap> DigraphEdgeConnectivity(D); 2 -gap> DigraphEdgeConnectivityDS(D); -2 gap> D := Digraph([[], [1, 2], [2]]);; gap> DigraphEdgeConnectivity(D); 0 -gap> DigraphEdgeConnectivityDS(D); -0 gap> C := Digraph([[3, 4], [1, 3, 4], [2], [3]]);; gap> DigraphEdgeConnectivity(C); 1 -gap> DigraphEdgeConnectivityDS(C); -1 gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; gap> DigraphEdgeConnectivity(D); 4 -gap> DigraphEdgeConnectivityDS(D); -4 # gap> DIGRAPHS_StopTest(); From d3b581f8ce749a2e86abc061d4cdf42f89583213 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 10 Dec 2025 15:51:09 +0000 Subject: [PATCH 14/15] Documentation changes + some DigraphsDominatingSet implementation changes for efficiency --- doc/oper.xml | 21 +++++++++++---------- doc/weights.xml | 11 ++++++----- doc/z-chap4.xml | 1 + doc/z-chap5.xml | 1 + gap/oper.gd | 2 +- gap/oper.gi | 31 +++++++++++++++++-------------- gap/weights.gi | 7 ++----- tst/standard/oper.tst | 20 ++++++++++---------- 8 files changed, 49 insertions(+), 45 deletions(-) diff --git a/doc/oper.xml b/doc/oper.xml index 8a8940e5b..284b991a3 100644 --- a/doc/oper.xml +++ b/doc/oper.xml @@ -1959,11 +1959,12 @@ rec( idom := [ 2, fail, 2, 2, 2 ], preorder := [ 2, 1, 3, 4, 5 ] ) A List - This creates a dominating set of digraph, which is a subset of the vertices in - digraph such that the neighbourhood of this subset of vertices is equal to all - the vertices in digraph.

+ This function returns a dominating set of digraph, + which is a subset of vertices whose neighbourhood consists of all vertices in digraph. +

- The domating set returned will be one of potentially multiple possible dominating sets for the digraph. + The neighbourhood of a set of vertices, V, refers to the set of vertices that are adjacent to a vertex in V, + not including any vertices that exist in V. The domating set returned will be one of potentially multiple possible dominating sets for the digraph. DigraphDominatingSet(D); @@ -1974,21 +1975,21 @@ gap> DigraphDominatingSet(D); <#/GAPDoc> -<#GAPDoc Label="DigraphGetNeighbourhood"> +<#GAPDoc Label="DigraphOutNeighbourhood"> - + A List - This returns the set of vertices that are adjacent to a vertex in vertices, + This returns the set of vertices for which there is an edge directed towards it from a vertex in vertices, not including any vertices that exist in vertices. D := Digraph([[2, 3, 4], [1], [], []]);; -gap> DigraphGetNeighbourhood(D, [1]); +gap> DigraphOutNeighbourhood(D, [1]); [ 2, 3, 4 ] -gap> DigraphGetNeighbourhood(D, [1, 2]); +gap> DigraphOutNeighbourhood(D, [1, 2]); [ 3, 4 ] gap> D := Digraph([[2, 3, 4], [], [], []]);; -gap> DigraphGetNeighbourhood(D, [2]); +gap> DigraphOutNeighbourhood(D, [2]); [ ]]]> diff --git a/doc/weights.xml b/doc/weights.xml index 1fb89afcb..04f77ebd3 100644 --- a/doc/weights.xml +++ b/doc/weights.xml @@ -277,12 +277,13 @@ gap> Sum(flow[1]); An integer - This returns a record representing the edge connectivity of digraph.

+ This function returns the edge connectivity of digraph.

Edge Connectivity refers to the size of a minimum cut of the graph, + which, for digraphs, refers to set of edges needed to be removed to ensure the graph is no longer Strongly Connected. That is, there exists two + vertices, A and B, for which a path from A to B does not exist. - It makes use of DigraphMaximumFlow(digraph), by constructing an edge-weighted Digraph - with edge weights of 1, then using the Max-flow min-cut theorem to determine the size of the minimum cut. - For a digraph, the minimum cut is the set of edges that need to be removed to ensure the digraph is - no longer Strongly Connected.

+ It makes use of the DigraphMaximumFlow(digraph) function, by constructing an edge-weighted Digraph + with edge weights of 1, then using the Max-flow min-cut theorem to determine the size of the minimum cut.

+ See also . D := Digraph([[2, 3, 4], [1, 3, 4], [1, 2], [2, 3]]);; gap> DigraphEdgeConnectivity(D); diff --git a/doc/z-chap4.xml b/doc/z-chap4.xml index 059e10eea..b2f0c32b7 100644 --- a/doc/z-chap4.xml +++ b/doc/z-chap4.xml @@ -76,6 +76,7 @@ <#Include Label="DigraphAbsorptionExpectedSteps"> <#Include Label="Dominators"> <#Include Label="DominatorTree"> + <#Include Label="DigraphDominatingSet"> <#Include Label="IteratorOfPaths"> <#Include Label="DigraphAllSimpleCircuits"> <#Include Label="DigraphLongestSimpleCircuit"> diff --git a/doc/z-chap5.xml b/doc/z-chap5.xml index 759876e11..a1be116c9 100644 --- a/doc/z-chap5.xml +++ b/doc/z-chap5.xml @@ -33,6 +33,7 @@ <#Include Label="EdgeWeightedDigraphShortestPath"> <#Include Label="DigraphMaximumFlow"> <#Include Label="RandomUniqueEdgeWeightedDigraph"> + <#Include Label="DigraphEdgeConnectivity">

Orders diff --git a/gap/oper.gd b/gap/oper.gd index f0cb7c3f0..eca06e157 100644 --- a/gap/oper.gd +++ b/gap/oper.gd @@ -155,7 +155,7 @@ DeclareOperation("IsOrderFilter", [IsDigraph, IsList]); DeclareOperation("Dominators", [IsDigraph, IsPosInt]); DeclareOperation("DominatorTree", [IsDigraph, IsPosInt]); DeclareOperation("DigraphDominatingSet", [IsDigraph]); -DeclareOperation("DigraphGetNeighbourhood", [IsDigraph, IsList]); +DeclareOperation("DigraphOutNeighbourhood", [IsDigraph, IsList]); DeclareOperation("DigraphCycleBasis", [IsDigraph]); # 10. Operations for vertices . . . diff --git a/gap/oper.gi b/gap/oper.gi index 095c59102..fadc0600d 100644 --- a/gap/oper.gi +++ b/gap/oper.gi @@ -2528,37 +2528,40 @@ end); InstallMethod(DigraphDominatingSet, "for a digraph", [IsDigraph], function(digraph) - local D, neighbourhood, VerticesLeft, Vertices; + local D, seen, Vertices, neighbour, v; Vertices := [1 .. DigraphNrVertices(digraph)]; - Shuffle(Vertices); - # Shuffling not technically necessary - may be better to just do D := [1]? - D := [Vertices[1]]; - neighbourhood := DigraphGetNeighbourhood(digraph, D); - VerticesLeft := Difference(Vertices, Union(neighbourhood, D)); + # Shuffling not technically necessary - may be better not to? + Shuffle(Vertices); - while not IsEmpty(VerticesLeft) do; - Append(D, [VerticesLeft[1]]); - neighbourhood := DigraphGetNeighbourhood(digraph, D); - VerticesLeft := Difference(Vertices, Union(neighbourhood, D)); + seen := BlistList([1 .. DigraphNrVertices(digraph)], []); + D := []; + for v in Vertices do + if seen[v] = false then + seen[v] := true; + Append(D, [v]); + for neighbour in OutNeighbours(digraph)[v] do + seen[neighbour] := true; + od; + fi; od; return D; end); # For getting the neighbourhood for a given List of Vertices in a Digraph -InstallMethod(DigraphGetNeighbourhood, "for a digraph and a List of vertices", +InstallMethod(DigraphOutNeighbourhood, "for a digraph and a List of vertices", [IsDigraph, IsList], function(digraph, vertices) local v, neighbourhood; neighbourhood := []; + for v in vertices do - neighbourhood := Difference(Union(neighbourhood, - OutNeighbours(digraph)[v]), vertices); + Append(neighbourhood, OutNeighbours(digraph)[v]); od; - return neighbourhood; + return Difference(Unique(neighbourhood), vertices); end); # Computes the fundamental cycle basis of a symmetric digraph diff --git a/gap/weights.gi b/gap/weights.gi index 44498988e..2595d87e6 100644 --- a/gap/weights.gi +++ b/gap/weights.gi @@ -802,11 +802,8 @@ function(digraph) notAddedNeighbours, notadded, NextVertex, NeighboursV, neighbour, Edges, D, VerticesLeft, VerticesED; - if DigraphNrVertices(digraph) = 1 then - return 0; - fi; - - if DigraphNrStronglyConnectedComponents(digraph) > 1 then + if DigraphNrVertices(digraph) = 1 or + DigraphNrStronglyConnectedComponents(digraph) > 1 then return 0; fi; diff --git a/tst/standard/oper.tst b/tst/standard/oper.tst index 2bba479ca..7469a8b75 100644 --- a/tst/standard/oper.tst +++ b/tst/standard/oper.tst @@ -2857,19 +2857,19 @@ rec( idom := [ fail ], preorder := [ 1 ] ) gap> DominatorTree(D, 6); rec( idom := [ ,,,,, fail ], preorder := [ 6 ] ) -# DigraphGetNeighbourhood +# DigraphOutNeighbourhood gap> D := Digraph([[2, 3, 4], [1], [], []]);; -gap> DigraphGetNeighbourhood(D, [1]); +gap> DigraphOutNeighbourhood(D, [1]); [ 2, 3, 4 ] -gap> DigraphGetNeighbourhood(D, [1, 2]); +gap> DigraphOutNeighbourhood(D, [1, 2]); [ 3, 4 ] gap> D := Digraph([[2, 3, 4], [], [], []]);; -gap> DigraphGetNeighbourhood(D, [2]); +gap> DigraphOutNeighbourhood(D, [2]); [ ] gap> D := Digraph([[2], [3], [4], [1]]);; -gap> DigraphGetNeighbourhood(D, [1]); +gap> DigraphOutNeighbourhood(D, [1]); [ 2 ] -gap> DigraphGetNeighbourhood(D, [1, 3]); +gap> DigraphOutNeighbourhood(D, [1, 3]); [ 2, 4 ] # IsDigraphPath @@ -3354,19 +3354,19 @@ gap> DigraphVertexLabels(D); # DigraphDominatingSet gap> d := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); true gap> d := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); true gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); true gap> D := RandomDigraph(1);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphGetNeighbourhood(d, p), p); +gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); true # From cfb696c148116efdb98526cead7492c9e3a24d44 Mon Sep 17 00:00:00 2001 From: Rheya Monerasinghe Date: Wed, 10 Dec 2025 16:51:58 +0000 Subject: [PATCH 15/15] Removing DigraphsOutNeighbourhood --- doc/oper.xml | 20 -------------------- gap/oper.gd | 1 - gap/oper.gi | 14 -------------- tst/standard/oper.tst | 39 ++++++++++++++++++++------------------- 4 files changed, 20 insertions(+), 54 deletions(-) diff --git a/doc/oper.xml b/doc/oper.xml index 284b991a3..4f7cbd8ae 100644 --- a/doc/oper.xml +++ b/doc/oper.xml @@ -1975,26 +1975,6 @@ gap> DigraphDominatingSet(D); <#/GAPDoc> -<#GAPDoc Label="DigraphOutNeighbourhood"> - - - A List - - This returns the set of vertices for which there is an edge directed towards it from a vertex in vertices, - not including any vertices that exist in vertices. - D := Digraph([[2, 3, 4], [1], [], []]);; -gap> DigraphOutNeighbourhood(D, [1]); -[ 2, 3, 4 ] -gap> DigraphOutNeighbourhood(D, [1, 2]); -[ 3, 4 ] -gap> D := Digraph([[2, 3, 4], [], [], []]);; -gap> DigraphOutNeighbourhood(D, [2]); -[ ]]]> - - -<#/GAPDoc> - <#GAPDoc Label="PartialOrderDigraphMeetOfVertices"> DominatorTree(D, 6); rec( idom := [ ,,,,, fail ], preorder := [ 6 ] ) -# DigraphOutNeighbourhood -gap> D := Digraph([[2, 3, 4], [1], [], []]);; -gap> DigraphOutNeighbourhood(D, [1]); -[ 2, 3, 4 ] -gap> DigraphOutNeighbourhood(D, [1, 2]); -[ 3, 4 ] -gap> D := Digraph([[2, 3, 4], [], [], []]);; -gap> DigraphOutNeighbourhood(D, [2]); -[ ] -gap> D := Digraph([[2], [3], [4], [1]]);; -gap> DigraphOutNeighbourhood(D, [1]); -[ 2 ] -gap> DigraphOutNeighbourhood(D, [1, 3]); -[ 2, 4 ] - # IsDigraphPath gap> D := Digraph(IsMutableDigraph, Combinations([1 .. 5]), IsSubset); @@ -3354,19 +3339,35 @@ gap> DigraphVertexLabels(D); # DigraphDominatingSet gap> d := Digraph([[2, 3], [2, 3], [1, 2, 3]]);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); +gap> neighbours := [];; +gap> for v in p do +> Append(neighbours, OutNeighbours(d)[v]); +> od; +gap> DigraphVertices(d) = Union(neighbours, p); true gap> d := Digraph([[2, 4], [3], [1, 5], [3], [4]]);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); +gap> neighbours := [];; +gap> for v in p do +> Append(neighbours, OutNeighbours(d)[v]); +> od; +gap> DigraphVertices(d) = Union(neighbours, p); true gap> D := Digraph([[1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5], [1, 2, 3, 4, 5]]);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); +gap> neighbours := [];; +gap> for v in p do +> Append(neighbours, OutNeighbours(d)[v]); +> od; +gap> DigraphVertices(d) = Union(neighbours, p); true gap> D := RandomDigraph(1);; gap> p := DigraphDominatingSet(d);; -gap> DigraphVertices(d) = Union(DigraphOutNeighbourhood(d, p), p); +gap> neighbours := [];; +gap> for v in p do +> Append(neighbours, OutNeighbours(d)[v]); +> od; +gap> DigraphVertices(d) = Union(neighbours, p); true #