diff options
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 3ab82d726b..336f5ab697 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -958,22 +958,26 @@ YES_IS_DEFINED ]) dnl -dnl APACHE_ADD_GCC_CFLAGS +dnl APACHE_ADD_GCC_CFLAG dnl -dnl Check if compiler is gcc and supports flag. If yes, add to CFLAGS. +dnl Check if compiler is gcc and supports flag. If yes, add to NOTEST_CFLAGS. +dnl NOTEST_CFLAGS is merged lately, thus it won't accumulate in CFLAGS here. +dnl Also, AC_LANG_PROGRAM() itself is known to trigger [-Wstrict-prototypes] +dnl with some autoconf versions, so we force -Wno-strict-prototypes for the +dnl check to avoid spurious failures when adding flags like -Werror. dnl AC_DEFUN([APACHE_ADD_GCC_CFLAG], [ define([ap_gcc_ckvar], [ac_cv_gcc_]translit($1, [-:.=], [____])) if test "$GCC" = "yes"; then AC_CACHE_CHECK([whether gcc accepts $1], ap_gcc_ckvar, [ save_CFLAGS="$CFLAGS" - CFLAGS="$CFLAGS $1" + CFLAGS="$CFLAGS $1 -Wno-strict-prototypes" AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [ap_gcc_ckvar=yes], [ap_gcc_ckvar=no]) CFLAGS="$save_CFLAGS" ]) if test "$]ap_gcc_ckvar[" = "yes" ; then - APR_ADDTO(CFLAGS,[$1]) + APR_ADDTO(NOTEST_CFLAGS,[$1]) fi fi undefine([ap_gcc_ckvar]) |