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cross-compiler build failure, egcs-19990502


egcs-19990502
host sparc-sun-sunos2.6
target powerpc-linux

While building libgcc2 for a cross compiler, stdlib.h and unistd.h are
sought.  Even though they exist in the usual place
(/usr/local/powerpc-linux/include), they are not found.
The build failure is apparently a regression from earlier times,
e.g. egcs-1.1.1.

The header search path, at the point of failure, is

#include "..." search starts here:
#include <...> search starts here:
 include
 .
 ../ccdir/gcc
 ../ccdir/gcc/config
 ../ccdir/gcc/../include
 /www/arc/egcs-build/gcc/include
End of search list.



ccdir/configure --srcdir=ccdir --host=sparc-sun-solaris2.6 --target=powerpc-linux
gmake
...
 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 ${name}; \
  /www/arc/egcs-build/gcc/xgcc -B/www/arc/egcs-build/gcc/ -B/usr/local/powerpc-linux/bin/ -O2  -DCROSS_COMPILE -DIN_GCC -DHAIFA  -DSVR4  -g -O2 -I./include  -fPIC -g1  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED    -mstrict-align -I. -I../ccdir/gcc -I../ccdir/gcc/config -I../ccdir/gcc/../include -c -DL${name} \
      ../ccdir/gcc/libgcc2.c -o ${name}.o; \
  if [ $? -eq 0 ] ; then true; else exit 1; fi; \
  powerpc-linux-ar rc tmplibgcc2.a ${name}.o; \
  rm -f ${name}.o; \
done
_muldi3
../ccdir/gcc/libgcc2.c:41: stdlib.h: No such file or directory
../ccdir/gcc/libgcc2.c:42: unistd.h: No such file or directory
gmake[3]: *** [libgcc2.a] Error 1
gmake[3]: Leaving directory `/www/arc/egcs-build/gcc'




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