still having problems w/egcs-1.1.2 linux-to-sunos4 cross

[fred anger <anger@triib.com>]

After previous failed attepts, it was suggested I copy the target
headers and libraries to $prefix/$target/include and lib.  I did this,
and it doesn't help.  A coworker and I sat and wondered why this should
even be necessary, as the executable compiler we're trying to build is
running on Linux, so why should it be built and linked with sunos
headers and libraries?  Perhaps I completely missed something?  I've
read the FAQ, and it doesn't seem to suggest this is necessary either. 
Can someone straighten me out on this?

Anyway, here's what I'm doing.  I moved to a new machine (RH 6.0) and
tried again.  I configured binutils-2.9.1 using
--program-prefix="sunos4-" and --target="sparc-sun-sunos4", built it and
installed it, no problem.  Then I untar the egcs-1.1.2 package, create a
separate directory for the build, cd to that separate directory, and
configure the egcs cross using the same options as I did with binutils. 
Then I type 'make cross', and it starts building stuff, but gets to a
point where it's trying to use xgcc (from my build directory) to compile
egcs-1.1.2/gcc/libgcc2.c.  It is failing because it can't find stdlib.h
and unistd.h.  On this system, those headers are in /usr/include,
however that directory doesn't seem to be in the include path of xgcc. 
Should it be?  If so, how can I get it in there?  Am I supposed to be
editing the Makefile?  I'll include the relavent error output at the end
of this message.

Also, I'm wondering when the FAQ will be updated for egcs.  I saw some
comments in there about "Cygnus releases", but I'm not sure if that
meant egcs.  If so, there isn't much information there, and it's kinda
confusing.

Thank you for your time.


make GCC_FOR_TARGET="/usr/local/src/builds/cross/egcs/gcc/xgcc
-B/usr/local/src/builds/cross/egcs/gcc/" \
  AR="sunos4-ar" AR_FLAGS="rc" CC="gcc" CFLAGS="-g -O2" \
  HOST_PREFIX="" HOST_PREFIX_1="loser-" \
  LANGUAGES="c c++" \
  LIBGCC2_CFLAGS="-O2  -DCROSS_COMPILE -DIN_GCC    -g -O2 -I./include  
-g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   " libgcc2.a
make[3]: Entering directory `/usr/local/src/builds/cross/egcs/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 ${name}; \
  /usr/local/src/builds/cross/egcs/gcc/xgcc
-B/usr/local/src/builds/cross/egcs/gcc/ -O2  -DCROSS_COMPILE -DIN_GCC   
-g -O2 -I./include   -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED    -I.
-I../../../../egcs-1.1.2/gcc -I../../../../egcs-1.1.2/gcc/config -c
-DL${name} \
      ../../../../egcs-1.1.2/gcc/libgcc2.c -o ${name}.o; \
  if [ $? -eq 0 ] ; then true; else exit 1; fi; \
  sunos4-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
make[3]: Leaving directory `/usr/local/src/builds/cross/egcs/gcc'
make[2]: *** [stmp-multilib-sub] Error 2
make[2]: Leaving directory `/usr/local/src/builds/cross/egcs/gcc'
make[1]: *** [stmp-multilib] Error 1
make[1]: Leaving directory `/usr/local/src/builds/cross/egcs/gcc'
make: *** [cross] Error 2
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