Re: -mmacosx-version-min and libgcc

[Andrew Pinski <pinskia at physics dot uc dot edu>]

On Sep 28, 2005, at 7:46 PM, Geoffrey Keating wrote:

> When using a shared libgcc, GCC links with '-lgcc_s -lgcc', with the
> intention of having those symbols in the system's libgcc used from the
> shared library, but backfilling from the static library if those
> symbols are not available.

And this breaks building on powerpc-darwin7.9:
output from the build:
make \
  CFLAGS="-g -W -Wall -Wwrite-strings -Wstrict-prototypes 
-Wmissing-prototypes -Wmissing-format-attribute -fno-common " \
  CONFIG_H="tconfig.h auto-host.h 
/Users/pinskia/src/combine/gcc/gcc/../include/ansidecl.h" TM_H="tm.h    
  options.h /Users/pinskia/src/combine/gcc/gcc/config/rs6000/rs6000.h 
/Users/pinskia/src/combine/gcc/gcc/config/darwin.h 
/Users/pinskia/src/combine/gcc/gcc/config/rs6000/darwin.h 
/Users/pinskia/src/combine/gcc/gcc/config/rs6000/darwin7.h 
/Users/pinskia/src/combine/gcc/gcc/defaults.h insn-constants.h 
insn-flags.h options.h" \
  INCLUDES="-I. -I. -I/Users/pinskia/src/combine/gcc/gcc 
-I/Users/pinskia/src/combine/gcc/gcc/. 
-I/Users/pinskia/src/combine/gcc/gcc/../include -I./../intl 
-I/Users/pinskia/src/combine/gcc/gcc/../libcpp/include " \
  MAKEOVERRIDES= \
  -f libgcc.mk all
./xgcc -B./ -B/Users/pinskia/combine/powerpc-apple-darwin7.9.0/bin/ 
-isystem /Users/pinskia/combine/powerpc-apple-darwin7.9.0/include 
-isystem /Users/pinskia/combine/powerpc-apple-darwin7.9.0/sys-include 
-L/Users/pinskia/src/combine/gcc/objdir/gcc/../ld -O2   -DIN_GCC    -W 
-Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes 
-Wold-style-definition  -isystem ./include  -Wa,-force_cpusubtype_ALL 
-pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  
-dynamiclib -nodefaultlibs 
-Wl,-install_name,/Users/pinskia/combine/lib/libgcc_s`if test . != . ; 
then echo _. ; fi`.1.dylib -Wl,-flat_namespace -o libgcc_s`if test . != 
. ; then echo _. ; fi`.1.dylib.tmp 
-Wl,-exported_symbols_list,libgcc/./libgcc.map -compatibility_version 1 
-current_version 1.0  libgcc/./_muldi3_s.o libgcc/./_negdi2_s.o 
libgcc/./_lshrdi3_s.o libgcc/./_ashldi3_s.o libgcc/./_ashrdi3_s.o 
libgcc/./_cmpdi2_s.o libgcc/./_ucmpdi2_s.o libgcc/./_floatdidf_s.o 
libgcc/./_floatdisf_s.o libgcc/./_fixunsdfsi_s.o 
libgcc/./_fixunssfsi_s.o libgcc/./_fixunsdfdi_s.o libgcc/./_fixdfdi_s.o 
libgcc/./_fixunssfdi_s.o libgcc/./_fixsfdi_s.o libgcc/./_fixxfdi_s.o 
libgcc/./_fixunsxfdi_s.o libgcc/./_floatdixf_s.o 
libgcc/./_fixunsxfsi_s.o libgcc/./_fixtfdi_s.o libgcc/./_fixunstfdi_s.o 
libgcc/./_floatditf_s.o libgcc/./_clear_cache_s.o 
libgcc/./_enable_execute_stack_s.o libgcc/./_trampoline_s.o 
libgcc/./__main_s.o libgcc/./_absvsi2_s.o libgcc/./_absvdi2_s.o 
libgcc/./_addvsi3_s.o libgcc/./_addvdi3_s.o libgcc/./_subvsi3_s.o 
libgcc/./_subvdi3_s.o libgcc/./_mulvsi3_s.o libgcc/./_mulvdi3_s.o 
libgcc/./_negvsi2_s.o libgcc/./_negvdi2_s.o libgcc/./_ctors_s.o 
libgcc/./_ffssi2_s.o libgcc/./_ffsdi2_s.o libgcc/./_clz_s.o 
libgcc/./_clzsi2_s.o libgcc/./_clzdi2_s.o libgcc/./_ctzsi2_s.o 
libgcc/./_ctzdi2_s.o libgcc/./_popcount_tab_s.o 
libgcc/./_popcountsi2_s.o libgcc/./_popcountdi2_s.o 
libgcc/./_paritysi2_s.o libgcc/./_paritydi2_s.o libgcc/./_powisf2_s.o 
libgcc/./_powidf2_s.o libgcc/./_powixf2_s.o libgcc/./_powitf2_s.o 
libgcc/./_mulsc3_s.o libgcc/./_muldc3_s.o libgcc/./_mulxc3_s.o 
libgcc/./_multc3_s.o libgcc/./_divsc3_s.o libgcc/./_divdc3_s.o 
libgcc/./_divxc3_s.o libgcc/./_divtc3_s.o libgcc/./_divdi3_s.o 
libgcc/./_moddi3_s.o libgcc/./_udivdi3_s.o libgcc/./_umoddi3_s.o 
libgcc/./_udiv_w_sdiv_s.o libgcc/./_udivmoddi4_s.o 
libgcc/./darwin-tramp_s.o libgcc/./darwin-ldouble_s.o 
libgcc/./unwind-dw2_s.o libgcc/./unwind-dw2-fde-darwin_s.o 
libgcc/./unwind-sjlj_s.o libgcc/./unwind-c_s.o 
libgcc/./darwin-fallback_s.o -lc && if [ -f libgcc_s`if test . != . ; 
then echo _. ; fi`.1.dylib ]; then mv -f libgcc_s`if test . != . ; then 
echo _. ; fi`.1.dylib libgcc_s`if test . != . ; then echo _. ; 
fi`.1.dylib.backup; else true; fi && mv libgcc_s`if test . != . ; then 
echo _. ; fi`.1.dylib.tmp libgcc_s`if test . != . ; then echo _. ; 
fi`.1.dylib
ld: warning -L: directory name 
(/Users/pinskia/src/combine/gcc/objdir/gcc/../ld) does not exist
for mlib in ''  ; do \
   -o libgcc_s.10.4.dylib_T${mlib} \
    -s 
/Users/pinskia/src/combine/gcc/gcc/config/rs6000/darwin-libgcc.10.4.ver 
-c -u \
    libgcc_s${mlib}.1.dylib || exit 1 ; \
done
/bin/sh: line 1: -o: command not found
make: *** [libgcc_s.10.4.dylib] Error 1

-- Pinski