diff options
Diffstat (limited to 'acinclude.m4')
-rw-r--r-- | acinclude.m4 | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 996ab6f70..e5f24fc57 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -7,13 +7,17 @@ AC_DEFUN([AST_GCC_ATTRIBUTE], [ AC_MSG_CHECKING(for compiler 'attribute $1' support) +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -Werror" AC_COMPILE_IFELSE( AC_LANG_PROGRAM([static int __attribute__(($1)) test(void) {}], []), AC_MSG_RESULT(yes) AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]), AC_MSG_RESULT(no)) -]) +] +CFLAGS="$saved_CFLAGS" +) # Helper function to setup variables for a package. # $1 -> the package name. Used in configure.ac and also as a prefix |