From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2153) id 7FBB23858D1E; Tue, 2 May 2023 08:59:07 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7FBB23858D1E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1683017947; bh=xMD1eo9EDfu+FFOBzjqmuhXNCgK5EuKmmvfyFmRcfUI=; h=From:To:Subject:Date:From; b=ebql9lb/g4hEw4uPv80CmSvvwGVaoxXw69e/DzTBzcD4/T3gFAvUlSbKbVv/BRBrC jv85yAzv1euCTprvKoWb2glFtO8y8qHNEyKTXq18oiqBSjBGcPJvV3gr+cBsEWJNx3 zUX36nF6ELbj1FOgk7NaLUefROsuIVZwUcgmrMAY= MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="utf-8" From: Jakub Jelinek To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r14-389] ibstdc++: Shut up -Wattribute-alias warning [PR109694] X-Act-Checkin: gcc X-Git-Author: Jakub Jelinek X-Git-Refname: refs/heads/master X-Git-Oldrev: 1fc8da95d93d1f1f151149178dc836d1ba09594e X-Git-Newrev: 87de39e4c3686535728f3a347f772e73af4cf262 Message-Id: <20230502085907.7FBB23858D1E@sourceware.org> Date: Tue, 2 May 2023 08:59:07 +0000 (GMT) List-Id: https://gcc.gnu.org/g:87de39e4c3686535728f3a347f772e73af4cf262 commit r14-389-g87de39e4c3686535728f3a347f772e73af4cf262 Author: Jakub Jelinek Date: Tue May 2 10:58:19 2023 +0200 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 PR libstdc++/109694 * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for -Wattribute-alias. Diff: --- libstdc++-v3/src/c++98/ios_init.cc | 2 ++ 1 file changed, 2 insertions(+) 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