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| author | Florian Weimer <fweimer@redhat.com> | 2025-05-26 08:49:19 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2025-05-26 08:49:22 +0200 |
| commit | 4f4c4fcde76aedc1f5362a51d98ebb57a28fbce9 (patch) | |
| tree | 0b48f7ff75de6ed0271cf6614279962b9107d5bb /configure.ac | |
| parent | 319f94dea2b7eeff12adb22ee50b46b64dd6a52d (diff) | |
Turn on -Wfree-labels by default if available
This flags a hazard for backporting changes to earlier branches.
Reviewed-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index abd3b238d2..6cf66c82a1 100644 --- a/configure.ac +++ b/configure.ac @@ -1575,6 +1575,17 @@ LIBC_CONFIG_VAR([cc-option-wimplicit-fallthrough], [$libc_cv_cc_wimplicit_fallthrough]) AC_SUBST(libc_cv_test_cc_wimplicit_fallthrough) +LIBC_TRY_CC_AND_TEST_CC_OPTION([for -Wfree-labels], + [-Werror -Wfree-labels], + libc_cv_cc_wfree_labels, + [libc_cv_cc_wfree_labels=-Wfree-labels], + [libc_cv_cc_wfree_labels=], + libc_cv_test_cc_wfree_labels, + [libc_cv_test_cc_wfree_labels=-Wfree-labels], + [libc_cv_test_cc_wfree_labels=]) +LIBC_CONFIG_VAR([cc-option-wfree-labels], [$libc_cv_cc_wfree_labels]) +AC_SUBST(libc_cv_test_cc_wfree_labels) + conftest_code=" void bar (void (*callback) (void)); int foo (void) |