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| author | Stefan Fritsch <sf@apache.org> | 2011-10-08 09:48:01 +0200 |
|---|---|---|
| committer | Stefan Fritsch <sf@apache.org> | 2011-10-08 09:48:01 +0200 |
| commit | 03227ed1c40290d0db2abcf6e6f70b4d28c5a92d (patch) | |
| tree | 65bbed0d0b8236b1337d3f0574724b34af0fd6b2 /acinclude.m4 | |
| parent | Add another AP_DEBUG_ASSERT to document some assumptions in the code, (diff) | |
| download | apache2-03227ed1c40290d0db2abcf6e6f70b4d28c5a92d.tar.xz apache2-03227ed1c40290d0db2abcf6e6f70b4d28c5a92d.zip | |
Add some CFLAGS in maintainer mode if supported by gcc:
-Wformat
-Wformat-security
-Werror=format-security
-Werror=declaration-after-statement
Add new macro APACHE_ADD_GCC_CFLAGS to do the compatibility check.
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1180331 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 2e0907e6a9..f51d27d960 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -706,3 +706,25 @@ YES_IS_DEFINED CPPFLAGS="$apache_old_cppflags" ]) ]) + +dnl +dnl APACHE_ADD_GCC_CFLAGS +dnl +dnl Check if compiler is gcc and supports flag. If yes, add to CFLAGS. +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 $1" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo() { return 0; }])], + [ap_gcc_ckvar=yes], [ap_gcc_ckvar=no]) + CFLAGS="$save_CFLAGS" + ]) + if test "$]ap_gcc_ckvar[" = "yes" ; then + APR_ADDTO(CFLAGS,[$1]) + fi + fi + undefine([ap_gcc_ckvar]) +]) |