Configuring with
 ../configure --enable-languages=c,fortran --with-gmp=/sw CC='gcc -pg'
and optionally --disable-botstrap fails with
# @multilib_dir@ is not really necessary, but sometimes it has
# more uses than just a directory name.
/bin/sh ../../../../libgcc/../mkinstalldirs x86_64
/Users/tobi/src/pristine/profile/./gcc/xgcc -B/Users/tobi/src/pristine/profile
/gcc/ -B/usr/local/i386-apple-darwin8.8.3/bin/ -B/usr/local/i386-apple-darwin8
.3/lib/ -isystem /usr/local/i386-apple-darwin8.8.3/include -isystem /usr/local
386-apple-darwin8.8.3/sys-include -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrit
strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isys
m ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT
EEDED  -dynamiclib -nodefaultlibs -install_name /usr/local/lib/libgcc_s`if tes
x86_64 = ppc64 ; then echo _x86_64 ; fi`.1.dylib -single_module -o x86_64/libg
_s.1.dylib.tmp -Wl,-exported_symbols_list,libgcc.map -compatibility_version 1 
urrent_version 1.0 -g -fkeep-inline-functions -m64 -B./ _muldi3_s.o _negdi2_s.
_lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o _cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s
 _enable_execute_stack_s.o _trampoline_s.o __main_s.o _absvsi2_s.o _absvdi2_s.
_addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o 
egvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.
_clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o _popcou
di2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _
witf2_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o _multc3_s.o _divsc3_s.o _divdc3_
o _divxc3_s.o _divtc3_s.o _bswapsi2_s.o _bswapdi2_s.o _fixunssfsi_s.o _fixunsd
i_s.o _fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixtfdi_s.o _fix
ssfdi_s.o _fixunsdfdi_s.o _fixunsxfdi_s.o _fixunstfdi_s.o _floatdisf_s.o _floa
idf_s.o _floatdixf_s.o _floatditf_s.o _floatundisf_s.o _floatundidf_s.o _float
dixf_s.o _floatunditf_s.o _fixsfti_s.o _fixdfti_s.o _fixxfti_s.o _fixtfti_s.o 
ixunssfti_s.o _fixunsdfti_s.o _fixunsxfti_s.o _fixunstfti_s.o _floattisf_s.o _
oattidf_s.o _floattixf_s.o _floattitf_s.o _floatuntisf_s.o _floatuntidf_s.o _f
atuntixf_s.o _floatuntitf_s.o _divdi3_s.o _moddi3_s.o _udivdi3_s.o _umoddi3_s.
_udiv_w_sdiv_s.o _udivmoddi4_s.o darwin-64_s.o unwind-dw2_s.o unwind-dw2-fde-d
win_s.o unwind-sjlj_s.o unwind-c_s.o emutls_s.o -lc
i686-apple-darwin8-gcc-4.0.1: 1: No such file or directory
i686-apple-darwin8-gcc-4.0.1: 1.0: No such file or directory
i686-apple-darwin8-gcc-4.0.1: /usr/local/lib/libgcc_s.1.dylib: No such file or
irectory
i686-apple-darwin8-gcc-4.0.1: 10.4: No such file or directory
collect2: ld returned 1 exit status
make[5]: *** [libgcc_s.dylib] Error 1
make[4]: *** [multi-do] Error 1
make[3]: *** [all-multi] Error 2
make[2]: *** [all-stage1-target-libgcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2
[1]-  Done                    xchat  (wd: ~)
(wd now: ~/src/pristine/profile)
tobias-schluters-computer:~/src/pristine/profile tobi$