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authorJakub Jelinek <jakub@redhat.com>2023-05-02 10:58:19 +0200
committerJakub Jelinek <jakub@redhat.com>2023-05-02 10:58:19 +0200
commit87de39e4c3686535728f3a347f772e73af4cf262 (patch)
treecdc4edc18fa16f22b48a4ef6bef9954038217e24 /libstdc++-v3/src
parent1fc8da95d93d1f1f151149178dc836d1ba09594e (diff)
downloadgcc-87de39e4c3686535728f3a347f772e73af4cf262.tar.gz
ibstdc++: Shut up -Wattribute-alias warning [PR109694]
I've followed what other files do, using attribute alias with not really matching function type (after all, it isn't really possible when it is a constructor), but seems I've missed it warns: ../../../../../libstdc++-v3/src/c++98/ios_init.cc:203:8: warning: ‘void std::ios_base_library_init()’ alias between functions of incompatible types ‘void()’ and ‘void +(std::ios_base::Init::)()’ [-Wattribute-alias=] 203 | void ios_base_library_init (void) | ^~~~~~~~~~~~~~~~~~~~~ ../../../../../libstdc++-v3/src/c++98/ios_init.cc:78:3: note: aliased declaration here 78 | ios_base::Init::Init() | ^~~~~~~~ The PR talks about clang++ warning there (which I think isn't really supported, libstdc++ sources ought to be built by GCC), but it warns when built with GCC too. The following patch fixes it by doing what other libstdc++ sources do in those cases. 2023-05-02 Jakub Jelinek <jakub@redhat.com> PR libstdc++/109694 * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for -Wattribute-alias.
Diffstat (limited to 'libstdc++-v3/src')
-rw-r--r--libstdc++-v3/src/c++98/ios_init.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/libstdc++-v3/src/c++98/ios_init.cc b/libstdc++-v3/src/c++98/ios_init.cc
index 0c2ba945f36..ace94b992b5 100644
--- a/libstdc++-v3/src/c++98/ios_init.cc
+++ b/libstdc++-v3/src/c++98/ios_init.cc
@@ -200,6 +200,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
#ifdef _GLIBCXX_SYMVER_GNU
+#pragma GCC diagnostic ignored "-Wattribute-alias"
+
void ios_base_library_init (void)
__attribute__((alias ("_ZNSt8ios_base4InitC1Ev")));
#endif