diff options
| author | Lubomir Rintel <lkundrak@v3.sk> | 2015-09-29 13:54:21 +0200 |
|---|---|---|
| committer | Lubomir Rintel <lkundrak@v3.sk> | 2015-09-29 14:08:14 +0200 |
| commit | 2d80ed664fbdb823a01d993be4c0e48262a867fe (patch) | |
| tree | 91ef4ec78917fe55b2ad0a5f7254ecf2f184908c /m4 | |
| parent | 9ecb79d230e7dd6cff7f726771ccf0bbb1dd1f51 (diff) | |
build: set -Werror when checking whether a -W<warning> option works
Otherwise the check is effectively a no-op and unknown options still get
turned on. This results in unknown warnings when build without
--with-extra-warnings=error:
warning: unknown warning option '-Wno-unused-but-set-variable'; did you mean '-Wno-unused-const-variable'? [-Wunknown-warning-option]
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/compiler_warnings.m4 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/m4/compiler_warnings.m4 b/m4/compiler_warnings.m4 index a1c4e1288..a7d6669d4 100644 --- a/m4/compiler_warnings.m4 +++ b/m4/compiler_warnings.m4 @@ -56,7 +56,7 @@ if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then -Wpointer-arith -Winit-self \ -Wmissing-include-dirs -Wno-pragmas; do dnl GCC 4.4 does not warn when checking for -Wno-* flags (https://gcc.gnu.org/wiki/FAQ#wnowarning) - CFLAGS="$CFLAGS_MORE_WARNINGS $(printf '%s' "$option" | sed 's/^-Wno-/-W/') $CFLAGS_SAVED" + CFLAGS="-Werror $CFLAGS_MORE_WARNINGS $(printf '%s' "$option" | sed 's/^-Wno-/-W/') $CFLAGS_SAVED" AC_MSG_CHECKING([whether compiler understands $option]) AC_TRY_COMPILE([], [], has_option=yes, |