https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125940
Bug ID: 125940
Summary: [17 regression] libgomp fails to build for
armv6j-unknown-linux-musleabihf
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: build
Severity: normal
Priority: P3
Component: libgomp
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
CC: jakub at gcc dot gnu.org
Target Milestone: ---
I guess it's musl specific.
```
/bin/sh ./libtool --tag=CC --mode=compile
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/build/./gcc/xgcc
-B/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/build/./gcc/
-B/usr/armv6j-unknown-linux-musleabihf/bin/
-B/usr/armv6j-unknown-linux-musleabihf/lib/ -isystem
/usr/armv6j-unknown-linux-musleabihf/include -isystem
/usr/armv6j-unknown-linux-musl
eabihf/sys-include -DHAVE_CONFIG_H -I.
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/posix
-I/var/tmp/portage/cross-armv6
j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/../include
-Wall -Wc,-pthread -g -O2 -c -o affinity.lo
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux/affinity.c
libtool: compile:
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/build/./gcc/xgcc
-B/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/build/./gcc/
-B/usr/armv6j-unknown-linux-musleabihf/bin/
-B/usr/armv6j-unknown-linux-musleabihf/lib/ -isystem
/usr/armv6j-unknown-linux-musleabihf/include -isystem
/usr/armv6j-unknown-linux-musleabihf/sys-include -DHAVE_
CONFIG_H -I.
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/posix
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp
-I/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/../include
-pthread -Wall -g -O2 -c
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux/affinity.c
-fPIC -DPIC -o .libs/affinity.o
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux/affinity.c:634:1:
error: redefinition of 'gomp_get_current_numa_node'
634 | gomp_get_current_numa_node ()
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux/affinity.c:626:
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux/../../affinity.c:156:1:
note: previous definition of 'gomp_get_current_numa_node' with type 'int(void)'
156 | gomp_get_current_numa_node ()
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux/affinity.c:642:1:
error: redefinition of 'gomp_get_numa_distance'
642 | gomp_get_numa_distance (int node1, int node2)
| ^~~~~~~~~~~~~~~~~~~~~~
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/libgomp/config/linux/../../affinity.c:162:1:
note: previous definition of 'gomp_get_numa_distance' with type 'int(int,
int)'
162 | gomp_get_numa_distance (int node1, int node2)
| ^~~~~~~~~~~~~~~~~~~~~~
make[4]: *** [Makefile:822: affinity.lo] Error 1
make[4]: Leaving directory
'/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/build/armv6j-unknown-linux-musleabihf/libgomp'
make[4]: *** Waiting for unfinished jobs....
```
```
$ ./xgcc -v
Using built-in specs.
COLLECT_GCC=./xgcc
Target: armv6j-unknown-linux-musleabihf
Configured with:
/var/tmp/portage/cross-armv6j-unknown-linux-musleabihf/gcc-17.0.0_p20260621/work/gcc-17-20260621/configure
--host=x86_64-pc-linux-gnu --target=armv6j-unknown-linux-musleabihf
--build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/armv6j-unknown-linux-musleabihf/gcc-bin/17
--includedir=/usr/lib/gcc/armv6j-unknown-linux-musleabihf/17/include
--datadir=/usr/share/gcc-data/armv6j-unknown-linux-musleabihf/17
--mandir=/usr/share/gcc-data/armv6j-unknown-linux-musleabihf/17/man
--infodir=/usr/share/gcc-data/armv6j-unknown-linux-musleabihf/17/info
--with-gxx-include-dir=/usr/lib/gcc/armv6j-unknown-linux-musleabihf/17/include/g++-v17
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/armv6j-unknown-linux-musleabihf/17/python
--enable-languages=c,c++,fortran,jit --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --disable-nls
--disable-libunwind-exceptions --enable-checking=yes,extra,rtl
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo
17.0.0_p20260621 p8' --with-gcc-major-version-only --enable-libstdcxx-time
--enable-lto --disable-libstdcxx-pch --enable-linker-build-id --disable-libada
--enable-poison-system-directories
--with-sysroot=/usr/armv6j-unknown-linux-musleabihf --disable-gcov
--disable-bootstrap --enable-__cxa_atexit --disable-multilib
--disable-fixed-point --with-float=hard --with-arch=armv6j --with-float=hard
--with-fpu=vfp --enable-libgomp --disable-libssp --disable-systemtap
--enable-valgrind-annotations --disable-valgrind-interop
--disable-vtable-verify --disable-libvtv --without-zstd --without-isl
--disable-libsanitizer --enable-default-pie --enable-host-pie
--enable-default-ssp --disable-fixincludes
--with-gxx-libcxx-include-dir=/usr/include/c++/v1 --enable-host-shared
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 17.0.0 20260621 (experimental) (Gentoo 17.0.0_p20260621 p8)
```
