seen after 77d372abec0fbf2cfe922e3140ee3410248f979e on x86_64-linux-gnu with --enable-cet and multilibs enabled

libtool: compile:  /<<PKGBUILDDIR>>/build/./gcc/xgcc -B/<<PKGBUILDDIR>>/build/./gcc/ -B/usr/lib/gcc-snap
shot/x86_64-linux-gnu/bin/ -B/usr/lib/gcc-snapshot/x86_64-linux-gnu/lib/ -isystem /usr/lib/gcc-snapshot/
x86_64-linux-gnu/include -isystem /usr/lib/gcc-snapshot/x86_64-linux-gnu/sys-include -DHAVE_CONFIG_H -I.
 -I../../../../src/libgomp -I../../../../src/libgomp/config/linux/x86 -I../../../../src/libgomp/config/l
inux -I../../../../src/libgomp/config/posix -I../../../../src/libgomp -I../../../../src/libgomp/../inclu
de -Wall -Werror -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS -march=i486 -pthread -mtune=generic -
fcf-protection -mshstk -g -O2 -m32 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../../src/libgomp/a
lloc.c  -fPIC -DPIC -o .libs/alloc.o
cc1: error: '-fcf-protection' is not compatible with this target
make[11]: *** [Makefile:798: alloc.lo] Error 1
make[10]: *** [Makefile:1021: all-recursive] Error 1
make[10]: Leaving directory '/<<PKGBUILDDIR>>/build/x86_64-linux-gnu/32/libgomp'
make[9]: *** [Makefile:622: all] Error 2
make[9]: Leaving directory '/<<PKGBUILDDIR>>/build/x86_64-linux-gnu/32/libgomp'
make[8]: *** [Makefile:1440: multi-do] Error 1
make[8]: Leaving directory '/<<PKGBUILDDIR>>/build/x86_64-linux-gnu/libgomp'
make[7]: *** [Makefile:1410: all-multi] Error 2
[...]
make[4]: Leaving directory '/<<PKGBUILDDIR>>/build'
make[3]: *** [Makefile:28643: stagefeedback-bubble] Error 2
make[3]: Leaving directory '/<<PKGBUILDDIR>>/build'
make[2]: *** [Makefile:28674: profiledbootstrap-lean] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>/build'

configured with
         --enable-cet
         --with-arch-32=i686
         --with-abi=m64
         --with-multilib-list=m32,m64,mx32