Bug 583058 – =sys-devel/gcc-{4.9.3,5.3.0}: emake failed: bin/ld: skipping incompatible /usr/lib/libc.{so,a} when searching for -lc

• Product: Gentoo Linux
• Status: RESOLVED OBSOLETE

[Description . 2016-05-14 23:18:01 UTC]

```
 * Package:    sys-devel/gcc-4.9.3
 * Repository: gentoo
 * Maintainer: [e-mail]
 * USE:        abi_x86_64 amd64 cxx doc elibc_glibc kernel_linux multilib multislot nptl openmp policykit sanitize userland_GNU vtv
 * FEATURES:   compressdebug preserve-libs sandbox splitdebug userpriv usersandbox

...

# @multilib_flags@ is still needed because this may use
# /tmp-big/portage/sys-devel/gcc-4.9.3/work/build/./gcc/xgcc -B/tmp-big/portage/sys-devel/gcc-4.9.3/work/build/./gcc/ -B/usr/x86_64-pc-linux-gnu/bin/ -B/usr/x86_64-pc-linux-gnu/lib/ -isystem /usr/x86_64-pc-linux-gnu/include -isystem /usr/x86_64-pc-linux-gnu/sys-include    and -O2  -g -O2 -pipe -march=native -fno-stack-protector -g1 -DIN_GCC    -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fpic -mlong-double-80 -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fstack-check=no  directly.
# @multilib_dir@ is not really necessary, but sometimes it has
# more uses than just a directory name.
/bin/bash /tmp-big/portage/sys-devel/gcc-4.9.3/work/gcc-4.9.3/libgcc/../mkinstalldirs 32
mkdir -p -- 32
/tmp-big/portage/sys-devel/gcc-4.9.3/work/build/./gcc/xgcc -B/tmp-big/portage/sys-devel/gcc-4.9.3/work/build/./gcc/ -B/usr/x86_64-pc-linux-gnu/bin/ -B/usr/x86_64-pc-linux-gnu/lib/ -isystem /usr/x86_64-pc-linux-gnu/include -isystem /usr/x86_64-pc-linux-gnu/sys-include    -O2  -g -O2 -pipe -march=native -fno-stack-protector -g1 -DIN_GCC    -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fpic -mlong-double-80 -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fstack-check=no  -shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1 -Wl,--version-script=libgcc.map -o 32/libgcc_s.so.1.tmp -g -O2 -pipe -march=native -fno-stack-protector -g1 -m32 -B./ _muldi3_s.o _negdi2_s.o _lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o _cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s.o _trampoline_s.o __main_s.o _absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _powitf2_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o _multc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o _divtc3_s.o _bswapsi2_s.o _bswapdi2_s.o _clrsbsi2_s.o _clrsbdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o _fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o _fixunsdfdi_s.o _fixunsxfdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o _floatundisf_s.o _floatundidf_s.o _floatundixf_s.o _divdi3_s.o _moddi3_s.o _udivdi3_s.o _umoddi3_s.o _udiv_w_sdiv_s.o _udivmoddi4_s.o cpuinfo_s.o tf-signs_s.o sfp-exceptions_s.o addtf3_s.o divtf3_s.o eqtf2_s.o getf2_s.o letf2_s.o multf3_s.o negtf2_s.o subtf3_s.o unordtf2_s.o fixtfsi_s.o fixunstfsi_s.o floatsitf_s.o floatunsitf_s.o fixtfdi_s.o fixunstfdi_s.o floatditf_s.o floatunditf_s.o extendsftf2_s.o extenddftf2_s.o extendxftf2_s.o trunctfsf2_s.o trunctfdf2_s.o trunctfxf2_s.o enable-execute-stack_s.o unwind-dw2_s.o unwind-dw2-fde-dip_s.o unwind-sjlj_s.o unwind-c_s.o emutls_s.o libgcc.a -lc && rm -f 32/libgcc_s.so && if [ -f 32/libgcc_s.so.1 ]; then mv -f 32/libgcc_s.so.1 32/libgcc_s.so.1.backup; else true; fi && mv 32/libgcc_s.so.1.tmp 32/libgcc_s.so.1 && ln -s libgcc_s.so.1 32/libgcc_s.so
/usr/x86_64-pc-linux-gnu/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/usr/x86_64-pc-linux-gnu/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
/usr/x86_64-pc-linux-gnu/bin/ld: cannot find -lc
collect2: error: ld returned 1 exit status
Makefile:948: recipe for target 'libgcc_s.so' failed
make[5]: *** [libgcc_s.so] Error 1
make[5]: Leaving directory '/tmp-big/portage/sys-devel/gcc-4.9.3/work/build/x86_64-pc-linux-gnu/32/libgcc'
Makefile:1154: recipe for target 'multi-do' failed
make[4]: *** [multi-do] Error 1
make[4]: Leaving directory '/tmp-big/portage/sys-devel/gcc-4.9.3/work/build/x86_64-pc-linux-gnu/libgcc'
Makefile:114: recipe for target 'all-multi' failed
make[3]: *** [all-multi] Error 2
make[3]: Leaving directory '/tmp-big/portage/sys-devel/gcc-4.9.3/work/build/x86_64-pc-linux-gnu/libgcc'
Makefile:14748: recipe for target 'all-stage1-target-libgcc' failed
make[2]: *** [all-stage1-target-libgcc] Error 2
make[2]: Leaving directory '/tmp-big/portage/sys-devel/gcc-4.9.3/work/build'
Makefile:18264: recipe for target 'stage1-bubble' failed
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory '/tmp-big/portage/sys-devel/gcc-4.9.3/work/build'
Makefile:18595: recipe for target 'bootstrap-lean' failed
make: *** [bootstrap-lean] Error 2
```

[Comment 1 Coacher 2016-05-18 10:25:59 UTC]

Please attach a complete build.log and the output of `emerge --info gcc'.

[Comment 2 Jan Chren (rindeal) 2016-05-21 00:25:26 UTC]

Created attachment 434816 [details]
gcc-4.9.3:20160520-214552.log

[Comment 3 Jan Chren (rindeal) 2016-05-21 00:30:28 UTC]

Created attachment 434818 [details]
emerge --info

[Comment 4 Andreas K. Hüttel 2017-10-02 20:47:31 UTC]

Please try to identify which one of the flags in your CFLAGS is causing this.