regex: don't warn on unused functions

ethomson · ethomson · commit e4b2ef87c75e · 2019-05-19T11:12:13.000+01:00
PCRE includes compatibility functions that may go unused.  Don't warn.
diff --git a/deps/pcre/CMakeLists.txt b/deps/pcre/CMakeLists.txt
@@ -20,6 +20,8 @@ CHECK_FUNCTION_EXISTS(_strtoi64 HAVE__STRTOI64)
 CHECK_TYPE_SIZE("long long"             LONG_LONG)
 CHECK_TYPE_SIZE("unsigned long long"    UNSIGNED_LONG_LONG)
 
+DISABLE_WARNINGS(unused-function)
+
 # User-configurable options
 
 SET(SUPPORT_PCRE8 1)
