From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.3 required=5.0 tests=MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 18033 invoked from network); 29 Mar 2021 23:55:09 -0000 Received: from mother.openwall.net (195.42.179.200) by inbox.vuxu.org with ESMTPUTF8; 29 Mar 2021 23:55:09 -0000 Received: (qmail 29717 invoked by uid 550); 29 Mar 2021 23:55:04 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: musl@lists.openwall.com Received: (qmail 29696 invoked from network); 29 Mar 2021 23:55:03 -0000 Date: Tue, 30 Mar 2021 02:54:52 +0300 From: "Dmitry V. Levin" To: Chris Packham Cc: linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, musl@lists.openwall.com, carlos@redhat.com, davem@davemloft.net Message-ID: <20210329235451.GA20210@altlinux.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: [musl] Re: Linux include/uapi/linux/libc-compat.h and Musl include/netinet/in.h incompatibility for __UAPI_DEF_IN6_ADDR_ALT Hi, On Tue, Mar 30, 2021 at 12:30:52PM +1300, Chris Packham wrote: > Hi, > > I've come over from https://github.com/strace/strace/issues/177 > there's a bit of context there. > > Crosstool-ng has hit a problem when building a recent enough version > of strace in a configuration that uses musl libc. > > The error is > > [ALL ] In file included from > /home/x-tool/.build/arm-unknown-linux-musleabi/src/strace/bundled/linux/include/uapi/linux/in6.h:26, > [ALL ] from > /home/x-tool/.build/arm-unknown-linux-musleabi/src/strace/bundled/linux/include/uapi/linux/if_bridge.h:19, > [ALL ] from > /home/x-tool/.build/arm-unknown-linux-musleabi/src/strace/src/rtnl_mdb.c:16: > [ERROR] /home/x-tool/.build/arm-unknown-linux-musleabi/src/strace/bundled/linux/include/uapi/linux/libc-compat.h:109: > error: "__UAPI_DEF_IN6_ADDR_ALT" redefined [-Werror] > [ALL ] 109 | #define __UAPI_DEF_IN6_ADDR_ALT 1 > [ALL ] | > [ALL ] In file included from > /home/x-tool/.build/arm-unknown-linux-musleabi/src/strace/src/rtnl_mdb.c:15: > [ALL ] /home/x-tool/x-tools/arm-unknown-linux-musleabi/arm-unknown-linux-musleabi/sysroot/usr/include/netinet/in.h:401: > note: this is the location of the previous definition > [ALL ] 401 | #define __UAPI_DEF_IN6_ADDR_ALT 0 > [ALL ] | > [ALL ] cc1: all warnings being treated as errors > [ERROR] make[4]: *** [Makefile:6660: libstrace_a-rtnl_mdb.o] Error 1 > [ALL ] make[4]: Leaving directory > '/home/x-tool/.build/arm-unknown-linux-musleabi/build/build-strace/src' > [ERROR] make[3]: *** [Makefile:2404: all] Error 2 > [ALL ] rm ioctlsort0.o ioctls_all0.h ioctlsort0 > [ALL ] make[3]: Leaving directory > '/home/x-tool/.build/arm-unknown-linux-musleabi/build/build-strace/src' > [ERROR] make[2]: *** [Makefile:601: all-recursive] Error 1 > [ALL ] make[2]: Leaving directory > '/home/x-tool/.build/arm-unknown-linux-musleabi/build/build-strace' > [ERROR] make[1]: *** [Makefile:506: all] Error 2 > [ALL ] make[1]: Leaving directory > '/home/x-tool/.build/arm-unknown-linux-musleabi/build/build-strace' > > It appears that the bundled uapi headers definition of > __UAPI_DEF_IN6_ADDR_ALT conflicts with the musl libc definition. It > looks like libc-compat.h tries to co-exists with GNU libc but this > isn't working for musl. This essentially means that such basic things as #include #include are broken in your setup. -- ldv