https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87891
--- Comment #10 from Douglas Mencken <dougmencken at gmail dot com> ---
And this one is beyond my understanding
/bin/sh ../../../gcc-8.2.0/libgcc/../mkinstalldirs .
/Volumes/hfsplushd/Development/gcc-toolchain/_build/./gcc/xgcc
-B/Volumes/hfsplushd/Development/gcc-toolchain/_build/./gcc/
-B/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/bin/
-B/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/lib/ -isystem
/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/include -isystem
/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/sys-include -O2
-g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include -mmacosx-version-min=10.5 -pipe -Wa,-force_cpusubtype_ALL
-mmacosx-version-min=10.4 -fno-common -mlong-double-128 -g -DIN_LIBGCC2
-fbuilding-libgcc -fno-stack-protector -Dinhibit_libc -dynamiclib
-nodefaultlibs -install_name
/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/lib/libgcc_s.1.dylib
-single_module -o ./libgcc_s.dylib -Wl,-exported_symbols_list,libgcc.map
-compatibility_version 1 -current_version 1.0 -g -O2 -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 _mulhc3_s.o _mulsc3_s.o _muldc3_s.o
_mulxc3_s.o _multc3_s.o _divhc3_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 _fixtfdi_s.o _fixunssfdi_s.o _fixunsdfdi_s.o _fixunsxfdi_s.o
_fixunstfdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o _floatditf_s.o
_floatundisf_s.o _floatundidf_s.o _floatundixf_s.o _floatunditf_s.o
_fixsfti_s.o _fixdfti_s.o _fixxfti_s.o _fixtfti_s.o _fixunssfti_s.o
_fixunsdfti_s.o _fixunsxfti_s.o _fixunstfti_s.o _floattisf_s.o _floattidf_s.o
_floattixf_s.o _floattitf_s.o _floatuntisf_s.o _floatuntidf_s.o
_floatuntixf_s.o _floatuntitf_s.o _divdi3_s.o _moddi3_s.o _divmoddi4_s.o
_udivdi3_s.o _umoddi3_s.o _udivmoddi4_s.o _udiv_w_sdiv_s.o darwin-tramp_s.o
darwin-64_s.o darwin-fpsave_s.o darwin-gpsave_s.o darwin-world_s.o
ibm-ldouble_s.o enable-execute-stack_s.o unwind-dw2_s.o
unwind-dw2-fde-darwin_s.o unwind-sjlj_s.o unwind-c_s.o darwin-fallback_s.o
emutls_s.o libgcc.a -lc
MLIBS=`/Volumes/hfsplushd/Development/gcc-toolchain/_build/./gcc/xgcc
-B/Volumes/hfsplushd/Development/gcc-toolchain/_build/./gcc/
-B/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/bin/
-B/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/lib/ -isystem
/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/include -isystem
/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/sys-include
--print-multi-lib | sed -e 's/;.*$//'` ; \
for mlib in $MLIBS ; do \
cp ../${mlib}/libgcc/${mlib}/libgcc_s.dylib \
./libgcc_s.1.dylib_T_${mlib} || exit 1 ; \
done
powerpc64-unknown-darwin-lipo -output libgcc_s.1.dylib \
-create libgcc_s.1.dylib_T*
rm libgcc_s.1.dylib_T*
MLIBS=`/Volumes/hfsplushd/Development/gcc-toolchain/_build/./gcc/xgcc
-B/Volumes/hfsplushd/Development/gcc-toolchain/_build/./gcc/
-B/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/bin/
-B/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/lib/ -isystem
/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/include -isystem
/Developer/GCC/8.2p/PowerPC/64bit/powerpc64-unknown-darwin/sys-include
--print-multi-lib | sed -e 's/;.*$//'` ; \
for mlib in $MLIBS ; do \
powerpc64-unknown-darwin-strip -o libgcc_ext.10.4.dylib_T${mlib} \
-R ../../../gcc-8.2.0/libgcc/config/rs6000/libgcc-darwin.10.4.ver
-c -urx \
../${mlib}/libgcc/${mlib}/libgcc_s.dylib || exit 1 ; \
done
powerpc64-unknown-darwin-strip: symbols names listed in:
../../../gcc-8.2.0/libgcc/config/rs6000/libgcc-darwin.10.4.ver not in:
/Volumes/hfsplushd/Development/gcc-toolchain/_build/powerpc64-unknown-darwin/libgcc/libgcc_s.dylib
__Unwind_Backtrace
__Unwind_DeleteException
__Unwind_FindEnclosingFunction
__Unwind_Find_FDE
__Unwind_ForcedUnwind
__Unwind_GetCFA
__Unwind_GetDataRelBase
__Unwind_GetGR
__Unwind_GetIP
__Unwind_GetLanguageSpecificData
__Unwind_GetRegionStart
__Unwind_GetTextRelBase
__Unwind_RaiseException
__Unwind_Resume
__Unwind_Resume_or_Rethrow
__Unwind_SetGR
__Unwind_SetIP
___absvdi2
___absvsi2
___addvdi3
___addvsi3
___ashldi3
___ashrdi3
___clear_cache
___clzdi2
___clzsi2
___cmpdi2
___ctzdi2
___ctzsi2
___deregister_frame
___deregister_frame_info
___deregister_frame_info_bases
___divdi3
___enable_execute_stack
___ffsdi2
___fixdfdi
___fixsfdi
___fixtfdi
___fixunsdfdi
___fixunsdfsi
___fixunssfdi
___fixunssfsi
___fixunstfdi
___floatdidf
___floatdisf
___floatditf
___gcc_personality_v0
___gcc_qadd
___gcc_qdiv
___gcc_qmul
___gcc_qsub
___lshrdi3
___moddi3
___muldi3
___mulvdi3
___mulvsi3
___negdi2
___negvdi2
___negvsi2
___paritydi2
___paritysi2
___popcountdi2
___popcountsi2
___register_frame
___register_frame_info
___register_frame_info_bases
___register_frame_info_table
___register_frame_info_table_bases
___register_frame_table
___subvdi3
___subvsi3
___trampoline_setup
___ucmpdi2
___udivdi3
___udivmoddi4
___umoddi3
make[2]: *** [libgcc_ext.10.4.dylib] Error 1
make[1]: *** [all-target-libgcc] Error 2
make: *** [all] Error 2
