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| author | Lukas Slebodnik <lslebodn@redhat.com> | 2017-01-30 12:17:25 +0100 |
|---|---|---|
| committer | Lukas Slebodnik <lslebodn@redhat.com> | 2017-02-01 14:10:44 +0100 |
| commit | 2e505786d6d9d537f5b6631099862f6b93e2e687 (patch) | |
| tree | db4e316a409e6578c6fc4792116ecc4a8ab807ff /configure.ac | |
| parent | c369b062182c746849196e495db467198039edf4 (diff) | |
| download | sssd-2e505786d6d9d537f5b6631099862f6b93e2e687.tar.gz sssd-2e505786d6d9d537f5b6631099862f6b93e2e687.tar.xz sssd-2e505786d6d9d537f5b6631099862f6b93e2e687.zip | |
Suppres implicit-fallthrough from gcc 7
Some kind of comments are recognized by gcc7 but they are ignored with
-Wimplicit-fallthrough=5 and only attributes disable the warning.
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 291504652..d264abf3e 100644 --- a/configure.ac +++ b/configure.ac @@ -418,6 +418,30 @@ if test x"$sss_cv_attribute_warn_unused_result" = xyes ; then [whether compiler supports __attribute__((warn_unused_result))]) fi +SAFE_CFLAGS=$CFLAGS +CFLAGS="-Werror" +AC_CACHE_CHECK( + [whether compiler supports __attribute__((fallthrough))], + [sss_cv_attribute_fallthrough], + [AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [ __attribute__ ((fallthrough)); ]) + ],[ + sss_cv_attribute_fallthrough=yes + sss_cv_attribute_fallthrough_val="__attribute__ ((fallthrough))" + ],[ + sss_cv_attribute_fallthrough=no + sss_cv_attribute_fallthrough_val= + ]) + ]) +CFLAGS=$SAFE_CFLAGS + +AC_DEFINE_UNQUOTED( + [SSS_ATTRIBUTE_FALLTHROUGH], + [$sss_cv_attribute_fallthrough_val], + [__attribute__((fallthrough)) if supported]) + + PKG_CHECK_MODULES([CHECK], [check >= 0.9.5], [have_check=1], [have_check=]) if test x$have_check = x; then AC_MSG_WARN([Without the 'CHECK' libraries, you will be unable to run all tests in the 'make check' suite]) |