powerpc fails to build

[K. Richard Pixley]

On both linux and solaris-2.6 for both powerpc-unknown-elf and
powerpc-unknown-eabi, building fails with the following.  These are
cross compilers.  There are no libraries (yet).  What's up with this?
Are there instructions for building cross compilers that I've
missed?

--rich

make[3]: Entering directory `/opt/local/cygnus/src/egcs-powerpc-unknown-eabi/gcc'
rm -f tmplibgcc2.a
for name in _muldi3 _divdi3 _moddi3 _udivdi3 _umoddi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 _udiv_w_sdiv _udivmoddi4 _cmpdi2 _ucmpdi2 _floatdidf _floatdisf _fixunsdfsi _fixunssfsi _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi _fixxfdi _fixunsxfdi _floatdixf _fixunsxfsi _fixtfdi _fixunstfdi _floatditf __gcc_bcmp _varargs __dummy _eprintf _bb _shtab _clear_cache _trampoline __main _exit _ctors _pure; \
do \
  echo ${name}; \
  /opt/local/cygnus/src/egcs-powerpc-unknown-eabi/gcc/xgcc -B/opt/local/cygnus/src/egcs-powerpc-unknown-eabi/gcc/ -O2  -DCROSS_COMPILE -DIN_GCC  -DSVR4  -g -O2 -I./include   -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED    -mstrict-align -I. -I../../egcs-1.1.2/gcc -I../../egcs-1.1.2/gcc/config -c -DL${name} \
      ../../egcs-1.1.2/gcc/libgcc2.c -o ${name}.o; \
  if [ $? -eq 0 ] ; then true; else exit 1; fi; \
  powerpc-unknown-eabi-ar rc tmplibgcc2.a ${name}.o; \
  rm -f ${name}.o; \
done
_muldi3
../../egcs-1.1.2/gcc/libgcc2.c:41: stdlib.h: No such file or directory
../../egcs-1.1.2/gcc/libgcc2.c:42: unistd.h: No such file or directory
make[3]: *** [libgcc2.a] Error 1