From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Seiderer Date: Fri, 8 Nov 2019 22:28:41 +0100 Subject: [Buildroot] [PATCH 1/2] package/gmpc: needs -lm In-Reply-To: <20191108220442.4b596996@windsurf> References: <20191029214046.14722-1-fontaine.fabrice@gmail.com> <20191108220442.4b596996@windsurf> Message-ID: <20191108222841.4ff8debf@gmx.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello Fabrice, Thomas, On Fri, 8 Nov 2019 22:04:42 +0100, Thomas Petazzoni wrote: > On Tue, 29 Oct 2019 22:40:45 +0100 > Fabrice Fontaine wrote: > > > gmpc forgets to link with -lm: > > > > /home/buildroot/autobuild/instance-2/output-1/host/opt/ext-toolchain/bin/../lib/gcc/mips-linux-gnu/5.3.0/../../../../mips-linux-gnu/bin/ld: GmpcVolume.o: undefined reference to symbol 'ceil@@GLIBC_2.0' > > /home/buildroot/autobuild/instance-2/output-1/host/mips64el-buildroot-linux-gnu/sysroot/soft-float/el/lib64/libm.so.6: error adding symbols: DSO missing from command line > > > > Fixes: > > - http://autobuild.buildroot.org/results/a79e0487135ad90530595d5c6ecc32f9c8cea7c4 > > > > Signed-off-by: Fabrice Fontaine > > We need to understand why this is happening now. This package has not > been modified since July 2017, but suddenly, on October 21, 2019, it > started failing like this. Why? Was there a change in one of the > dependencies, that is no longer linked with libm, and that causes this > problem ? Maybe the same cause/problem as in the libv4l case regarding libatomic, evaluating vs. not evaluationg the *.la files (see [1])? Regards, Peter [1] http://lists.busybox.net/pipermail/buildroot/2019-October/264928.html > > I think I already asked this in the past: when you fix an issue, don't > just fix the issue, but explain why the issue is happening, especially > in situations like these. > > Thanks! > > Thomas