| Summary: | dev-cpp/gccxml-0.9.0_pre20131217 fails to build with gcc-5.1 - toplev.c error: redefinition of ‘exact_log2’ | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Petros <petros_20> |
| Component: | [OLD] GCC Porting | Assignee: | C++ Team [disbanded] <cpp+disabled> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | ||
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | https://github.com/gccxml/gccxml/issues/11 | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Bug Depends on: | |||
| Bug Blocks: | 536984 | ||
| Attachments: |
build.log
emerge --info |
||
Created attachment 403158 [details]
emerge --info
Use "-std=gnu89" cflag (old default). New default is gnu11. Please note that gccxml has been abandoned in favour of castxml: https://github.com/CastXML/CastXML See also the relevant discussion in Debian: http://comments.gmane.org/gmane.linux.debian.devel.bugs.general/1272091 * Package: dev-cpp/gccxml-0.9.0_pre20131217 failed here too at the tinderbox image amd64-13.0-unstable_20151211-113822 while revdep-rebuilding after gcc-5 upgrade: [ 72%] Building C object GCC/gcc/CMakeFiles/backend.dir/toplev.c.o cd /var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217_build/GCC/gcc && /usr/bin/x86_64-pc-linux-gnu-gcc -DALMOST_STDC -DHAVE_CONFIG_H -DIN_GCC -I/var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217_build/GCC/gcc -I/var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/gcc/config -I/var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/gcc -I/var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/libdecnumber -I/var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/libcpp/include -I/var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/include -DNDEBUG -march=native -O2 -pipe -w -DTARGET_NAME=x86_64-unknown-linux-gnu -o CMakeFiles/backend.dir/toplev.c.o -c /var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/gcc/toplev.c /var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/gcc/toplev.c:546:1: error: redefinition of ‘floor_log2’ floor_log2 (unsigned HOST_WIDE_INT x) ^ In file included from /var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/gcc/toplev.c:59:0: /var/tmp/portage/dev-cpp/gccxml-0.9.0_pre20131217/work/gccxml-0.9.0_pre20131217/GCC/gcc/toplev.h:174:1: note: previous definition of ‘floor_log2’ was here floor_log2 (unsigned HOST_WIDE_INT x) ^ wasn't this caused by missing emerge -e world after gcc5 update? most likely due to change in default standard. this package looks like a snapshot of older gcc, so you can probably workaround it by adding to the ebuild: append-flags -std=gnu89 I've committed the usual gnu89 inline fix. I'm closing the bug, as the fix can't be upstreamed and the issue is solved for Gentoo. commit fec653cc75b95b4cbf48e16f1c0bf7999454f54c Author: David Seifert <soap@gentoo.org> Date: Sat Apr 2 23:22:31 2016 +0200 dev-cpp/gccxml: add -std=gnu89 to CFLAGS to restore pre-GCC5 semantics Gentoo-Bug: 549300 * EAPI=6 |
Created attachment 403156 [details] build.log The above package can't be built with GCC 5.1.0. There is no problem when it is compiled with GCC 4.9.2