build cross gcc for ppc with glibc

[Schlomo Schapiro <schapiro at mobileye dot com>]

Hi,

I need to build a cross-gcc to compile PPC stuff on a i386 box (with
Altivec extensions).

The problem is that the compilation of gcc (make bootstrap) ends with
this:
-------------------------------------------
make[3]: Entering directory
`/home/mobileye/work/Altivec/gcc-2.95.2.orig/gcc-2.95.2/build/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 ${name}; \
  ./xgcc -B/usr/mobileye/Altivec/powerpc-linux/bin/ -B./
-I/usr/mobileye/Altivec/powerpc-linux/include -O2 -Iginclude
-DCROSS_COMPILE -DIN_GCC -DHAIFA    -g -I./include  -fPIC -fvec -g1
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
-mstrict-align -I. -I../../gcc -I../../gcc/config -I../../gcc/../include
-c -DL${name} \
       ../../gcc/libgcc2.c -o ${name}.o; \
  if [ $? -eq 0 ] ; then true; else exit 1; fi; \
  ar rc tmplibgcc2.a ${name}.o; \
  rm -f ${name}.o; \
done
_muldi3
as: unrecognized option `-ppc'
make[3]: *** [libgcc2.a] Error 1
make[3]: Leaving directory
`/home/mobileye/work/Altivec/gcc-2.95.2.orig/gcc-2.95.2/build/gcc'
make[2]: *** [stmp-multilib-sub] Error 2
make[2]: Leaving directory
`/home/mobileye/work/Altivec/gcc-2.95.2.orig/gcc-2.95.2/build/gcc'
make[1]: *** [stmp-multilib] Error 1
make[1]: Leaving directory
`/home/mobileye/work/Altivec/gcc-2.95.2.orig/gcc-2.95.2/build/gcc'
make: *** [bootstrap] Error 2
------------------------------------------------------------------

The as called here is the one from the cross-binutils which I successfully
installed previously. I also installed a glibc into the same prefix
(--prefix=/usr/mobileye/Altivec).

It seems strange to me that the ppc-enabled as doesn't know about ppc ?

Any help appreciated !

Schlomo

PS: I don't want to build with newlib, however, I didn't find any howto or
FAQ how to properly build binutils/gcc/glibc for a cross encironment from
scratch.



-- 
Schlomo Schapiro
Senior System Administrator
MobilEye Vision Technologies Ltd.

24 Mishol Hadkalim St.,97278 Jerusalem, Israel
Telephone:  + 972-2-586-6989 Ext. 131
Mobile:     + 972-55-767898
Fax:        + 972-2-586-7720

email: schapiro@mobileye.com
WWW:   http://www.mobileye.com


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