Convert Makefiles to cmake

.gitignore

@@ -31,3 +31,23 @@
 *.app
 
 # Actual Project Executables
+
+# Created by https://www.gitignore.io/api/cmake
+
+### CMake ###
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+build*
+
+
+# End of https://www.gitignore.io/api/cmake
+
+# Expected test results
+!test-high/expected/*.out

.travis.yml

@@ -0,0 +1,54 @@
+language: cpp
+
+matrix:
+  include:
+    - name: "Linux (gcc)"
+      os: linux
+      compiler: gcc
+      addons:
+        apt:
+          packages: valgrind
+      script:
+        - ctest --verbose --output-on-failure --script cmake/ctest-gcc.cmake
+      before_deploy:
+        - mkdir build
+        - cd build
+        - cmake -D CMAKE_BUILD_TYPE=Release ..
+        - cd ..
+        - cpack -G ZIP --config cmake/cpack-linux.cmake
+      deploy:
+        provider: releases
+        api_key: ${GITHUB_TOKEN}
+        file_glob: true
+        file: "*.zip"
+        skip_cleanup: true
+        on:
+          tags: true
+
+    - name: "Linux (clang)"
+      os: linux
+      compiler: clang
+      script:
+        - ctest --verbose --output-on-failure --script cmake/ctest-clang.cmake
+
+    - name: "OSX"
+      os: osx
+      script:
+        - ctest --verbose --output-on-failure --script cmake/ctest-osx.cmake
+
+    - name: "Windows"
+      os: windows
+      before_script:
+        - mkdir build
+        - cd build
+        - cmake ..
+        - cmake --build .
+      script:
+        - cmake --build . --target RUN_TESTS
+
+  allow_failures:
+    - os: windows
+  fast_finish: true
+
+notifications:
+  email: false

CMakeLists.txt

@@ -0,0 +1,9 @@
+cmake_minimum_required(VERSION 3.8.0)
+
+project(pcg-super)
+
+add_subdirectory(include)
+add_subdirectory(sample)
+
+enable_testing()
+add_subdirectory(test-high)

README.md

@@ -1,5 +1,11 @@
 # PCG Random Number Generation, C++ Edition
 
+[![Build Status][unix-img]][unix-link] ![License][license-img]
+
+[unix-img]: https://img.shields.io/travis/com/imneme/pcg-cpp/master.svg
+[unix-link]: https://travis-ci.com/imneme/pcg-cpp
+[license-img]: https://img.shields.io/badge/license-MIT%2FApache--2.0-blue.svg
+
 [PCG-Random website]: http://www.pcg-random.org
 
 This code provides an implementation of the PCG family of random number
@@ -24,22 +30,40 @@ Visit [PCG-Random website] for information on how to use this library, or look
 at the sample code in the `sample` directory -- hopefully it should be fairly
 self explanatory.
 
-## Building
+## Building, Testing and Installing
 
 The code is written in C++11, as an include-only library (i.e., there is
-nothing you need to build).  There are some provided demo programs and tests
-however.  On a Unix-style system (e.g., Linux, Mac OS X) you should be able
-to just type
-
-    make
-
-To build the demo programs.
-
-## Testing
-
-Run
-
-    make test
+nothing you need to build).
+
+There are some provided demo programs and tests however. We provide a
+[CMake](https://cmake.org/)-based building and testing functionality. If you
+do not have CMake installed on your system, you can
+[download](https://cmake.org/download/) the latest version. Once installed, you
+can run
+
+```bash
+mkdir build
+cd build
+cmake ../
+cmake --build .
+cmake --build . --target test
+cmake --build . --target install
+```
+
+Above, CMake creates necessary files inside the `build` folder, builds the demo
+programs, performs the tests, and finally installs the header files and demo
+programs to the `include` and `bin` folders, respectively, in the default system
+path. You can append `-D CMAKE_INSTALL_PREFIX=<folder_name>` to change the
+default (system) path. For instance, if you would like to install the files in
+the `install` folder under the current path, simply run
+
+```bash
+mkdir build install
+cd build
+cmake -D CMAKE_INSTALL_PREFIX=../install ../
+cmake --build .
+cmake --build . --target install
+```
 
 ## Directory Structure
 
@@ -48,5 +72,5 @@ The directories are arranged as follows:
 * `include` -- contains `pcg_random.hpp` and supporting include files
 * `test-high` -- test code for the high-level API where the functions have
   shorter, less scary-looking names.
-* `sample` -- sample code, some similar to the code in `test-high` but more 
+* `sample` -- sample code, some similar to the code in `test-high` but more
   human readable, some other examples too

cmake/cpack-linux.cmake

@@ -0,0 +1,10 @@
+include("build/CPackConfig.cmake")
+
+set(CPACK_INSTALL_CMAKE_PROJECTS
+  "build;pcg-super;ALL;/"
+)
+
+set(CPACK_PACKAGE_FILE_NAME pcg-linux)
+set(CPACK_PACKAGE_DESCRIPTION_SUMMARY
+  "PCG Random Number Generation, C++ Edition"
+)

cmake/ctest-clang.cmake

@@ -0,0 +1,16 @@
+set(ENV{CC} "clang")
+set(ENV{CXX} "clang++")
+
+set(CTEST_PROJECT_NAME "pcg")
+set(CTEST_SOURCE_DIRECTORY ".")
+set(CTEST_BINARY_DIRECTORY "build-test-clang")
+set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
+
+ctest_start("Continuous")
+ctest_configure()
+ctest_build()
+ctest_test(RETURN_VALUE SUCCESS)
+
+if(NOT ${SUCCESS} EQUAL 0)
+  message(SEND_ERROR "Testing failed.")
+endif()

cmake/ctest-gcc.cmake

@@ -0,0 +1,22 @@
+set(ENV{CC} "gcc")
+set(ENV{CXX} "g++")
+set(ENV{CXXFLAGS} "--coverage")
+
+set(CTEST_PROJECT_NAME "pcg")
+set(CTEST_SOURCE_DIRECTORY ".")
+set(CTEST_BINARY_DIRECTORY "build-test-gcc")
+set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
+
+set(CTEST_COVERAGE_COMMAND "/usr/bin/gcov")
+set(CTEST_MEMORYCHECK_COMMAND "/usr/bin/valgrind")
+
+ctest_start("Continuous")
+ctest_configure()
+ctest_build()
+ctest_test(RETURN_VALUE SUCCESS)
+ctest_coverage()
+ctest_memcheck()
+
+if(NOT ${SUCCESS} EQUAL 0)
+  message(SEND_ERROR "Testing failed.")
+endif()

cmake/ctest-osx.cmake

@@ -0,0 +1,13 @@
+set(CTEST_PROJECT_NAME "pcg")
+set(CTEST_SOURCE_DIRECTORY ".")
+set(CTEST_BINARY_DIRECTORY "build-test-osx")
+set(CTEST_CMAKE_GENERATOR "Unix Makefiles")
+
+ctest_start("Continuous")
+ctest_configure()
+ctest_build()
+ctest_test(RETURN_VALUE SUCCESS)
+
+if(NOT ${SUCCESS} EQUAL 0)
+  message(SEND_ERROR "Testing failed.")
+endif()

include/CMakeLists.txt

@@ -0,0 +1,52 @@
+cmake_minimum_required(VERSION 3.8.0)
+
+project(pcg VERSION 0.98.1 LANGUAGES CXX)
+
+include(CMakePackageConfigHelpers)
+include(GNUInstallDirs)
+
+add_library(pcg INTERFACE)
+add_library(pcg::pcg ALIAS pcg)
+
+target_compile_features(pcg INTERFACE cxx_std_11)
+
+target_include_directories(pcg
+  INTERFACE
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+)
+
+install(TARGETS pcg EXPORT pcg)
+
+install(EXPORT pcg
+  FILE pcg-targets.cmake
+  NAMESPACE pcg::
+  DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/pcg
+)
+
+configure_package_config_file(pcg-config.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/pcg-config.cmake
+  INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/pcg
+)
+
+write_basic_package_version_file(pcg-config-version.cmake
+  COMPATIBILITY SameMajorVersion
+)
+
+install(
+  FILES
+    ${CMAKE_CURRENT_BINARY_DIR}/pcg-config.cmake
+    ${CMAKE_CURRENT_BINARY_DIR}/pcg-config-version.cmake
+  DESTINATION
+    ${CMAKE_INSTALL_LIBDIR}/cmake/pcg
+)
+
+install(
+  DIRECTORY
+    ${CMAKE_CURRENT_SOURCE_DIR}/
+  DESTINATION
+    ${CMAKE_INSTALL_INCLUDEDIR}
+  FILES_MATCHING PATTERN *.hpp
+)
+
+include(CPack)

include/pcg-config.cmake.in

@@ -0,0 +1,4 @@
+@PACKAGE_INIT@
+# include(CMakeFindDependencyMacro)
+# find_dependency(XXX)
+include("${CMAKE_CURRENT_LIST_DIR}/pcg-targets.cmake")