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[130.44.159.43]) by smtp.gmail.com with ESMTPSA id f1-20020a05620a280100b006ff8ac9acfdsm5099409qkp.49.2022.12.12.20.28.20 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 12 Dec 2022 20:28:21 -0800 (PST) Message-ID: <26f72cec-ff38-019b-b33e-2027e2cd445f@redhat.com> Date: Mon, 12 Dec 2022 23:28:20 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.1 Subject: Re: [PATCH PING] build: add -Wconditionally-supported to strict_warn [PR64867] From: Jason Merrill To: gcc-patches@gcc.gnu.org References: <20221206132624.1051104-1-jason@redhat.com> In-Reply-To: <20221206132624.1051104-1-jason@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-12.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 12/6/22 08:26, Jason Merrill wrote: > Tested x86_64-pc-linux-gnu, OK for trunk? Ping. > -- 8< -- > > The PR (which isn't resolved by this commit) pointed out to me that GCC > should build with -Wconditionally-supported to support bootstrapping with a > C++11 compiler that makes different choices. > > PR c++/64867 > > gcc/ChangeLog: > > * configure.ac (strict_warn): Add -Wconditionally-supported. > * configure: Regenerate. > --- > gcc/configure.ac | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/gcc/configure.ac b/gcc/configure.ac > index 7ca08726efa..12771fc292c 100644 > --- a/gcc/configure.ac > +++ b/gcc/configure.ac > @@ -580,7 +580,7 @@ ACX_PROG_CC_WARNING_OPTS( > m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes ], > [])), [c_loose_warn]) > ACX_PROG_CXX_WARNING_OPTS( > - m4_quote(m4_do([-Wmissing-format-attribute ], > + m4_quote(m4_do([-Wmissing-format-attribute ], [-Wconditionally-supported ], > [-Woverloaded-virtual])), [strict_warn]) > ACX_PROG_CC_WARNING_OPTS( > m4_quote(m4_do([-Wold-style-definition -Wc++-compat])), [c_strict_warn]) > > base-commit: d19aa6af6634b1e97f38431ad091f3b3f12baf2f