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Diffstat (limited to '')
| -rw-r--r-- | m4macros/detectcflags.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/m4macros/detectcflags.m4 b/m4macros/detectcflags.m4 new file mode 100644 index 0000000..ee33456 --- /dev/null +++ b/m4macros/detectcflags.m4 @@ -0,0 +1,20 @@ +dnl GIMP_DETECT_CFLAGS(RESULT, FLAGSET) +dnl Detect if the compiler supports a set of flags + +AC_DEFUN([GIMP_DETECT_CFLAGS], +[ + $1= + for flag in $2; do + if test -z "[$]$1"; then + $1_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror $flag" + AC_MSG_CHECKING([whether [$]CC understands [$]flag]) + AC_TRY_COMPILE([], [], [$1_works=yes], [$1_works=no]) + AC_MSG_RESULT([$]$1_works) + CFLAGS="[$]$1_save_CFLAGS" + if test "x[$]$1_works" = "xyes"; then + $1="$flag" + fi + fi + done +]) |