Mercurial > hg > sv-dependency-builds
diff src/libsndfile-1.0.27/M4/add_cflags.m4 @ 125:cd6cdf86811e
Current libsndfile source
| author | Chris Cannam <cannam@all-day-breakfast.com> |
|---|---|
| date | Tue, 18 Oct 2016 13:22:47 +0100 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/libsndfile-1.0.27/M4/add_cflags.m4 Tue Oct 18 13:22:47 2016 +0100 @@ -0,0 +1,18 @@ +dnl @synopsis MN_ADD_CFLAGS +dnl +dnl Add the given option to CFLAGS, if it doesn't break the compiler + +AC_DEFUN([MN_ADD_CFLAGS], +[AC_MSG_CHECKING([if $CC accepts $1]) + ac_add_cflags__old_cflags="$CFLAGS" + CFLAGS="$1" + AC_TRY_LINK([ + #include <stdio.h> + ], + [puts("Hello, World!"); return 0;], + AC_MSG_RESULT([yes]) + CFLAGS="$ac_add_cflags__old_cflags $1", + AC_MSG_RESULT([no]) + CFLAGS="$ac_add_cflags__old_cflags" + ) +])# MN_ADD_CFLAGS