cross-builds failing

[Richard Earnshaw]

I'm not sure why this has started (or exactly when -- sometime in the last 
couple of weeks I think).  I have a cross-build for the ARM set up, with a 
gas and newlib tree linked into my source structure.  In the past this has 
always built fine (modulo a few small problems with the latest gas 
snapshots putting intl in a different place).

Now, trying to build the compiler dies when trying to compile libgcc2.c:

for name in _muldi3 ...; \
do \
  echo ${name}; \
  /home/rearnsha/gnu/egcs/arm-aout/gcc/xgcc -B/home/rearnsha/gnu/egcs/arm-a
out/gcc/ -O2 -fomit-frame-pointer  -DCROSS_COMPILE -DIN_GCC  -DSVR4  -g 
-O2 -I./include   -I. -I../../../../gnusrc/egcs/gcc 
-I../../../../gnusrc/egcs/gcc/config -I../../../../gnusrc/egcs/gcc/../inclu
de -c -DL${name} \
      ../../../../gnusrc/egcs/gcc/libgcc2.c -o ${name}.o; \
  if [ $? -eq 0 ] ; then true; else exit 1; fi; \
  /home/rearnsha/gnu/egcs/arm-aout/binutils/ar rc tmplibgcc2.a ${name}.o; \
  rm -f ${name}.o; \
done
_muldi3
../../../../gnusrc/egcs/gcc/libgcc2.c:41: stdlib.h: No such file or 
directory
../../../../gnusrc/egcs/gcc/libgcc2.c:42: unistd.h: No such file or 
directory
gnumake[3]: *** [libgcc2.a] Error 1

I see no mention of newlib in the include path there.

Thinking back, didn't gcc always used to look in <prefix>/<target>/include 
?

Doing a quick test with -v shows it is no-longer doing this.

GNU CPP version egcs-2.92.11 19981002 (gcc2 ss-980609 experimental) 
(ARM/semi-hosted)
#include "..." search starts here:
#include <...> search starts here:
 include
 .
 ../../../../gnusrc/egcs/gcc
 ../../../../gnusrc/egcs/gcc/config
 ../../../../gnusrc/egcs/gcc/../include
 /home/rearnsha/gnu/egcs/arm-aout/gcc/include
End of search list.

Richard.