Building cross-compiler (missing stdio.h)

["Adam Markiewicz" <amgo100 at gmail dot com>]

Hi,

I'm trying to build a cross-toolchain with x86_64 target. I've successfully
compiled binutils-2.22, gmp-5.0.4, mpc-0.9 and mpfr-3.1.0, however I'm stuck
with gcc-4.7.0. I configured it with

../gcc-4.7.0/configure
--prefix=/cross-tools --build=$HOST --host=$HOST --target=$TARGET
--with-sysroot=/mnt/root  --disable-shared --disable-nls
--with-mpfr=/cross-tools --with-gmp=/cross-tools
--without-ppl --without-cloog
--disable-decimal-float --disable-libgomp --disable-libmudflap
--disable-libssp --disable-threads --disable-multilib
--enable-languages=c --without-headers

and got the following error:

make[2]: Entering directory
`/mnt/root/sources/gcc-build/x86_64-cerebro-linux-gnu/libgcc'
# If this is the top-level multilib, build all the other
# multilibs.
/mnt/root/sources/gcc-build/./gcc/xgcc -B/mnt/root/sources/gcc-build/./gcc/
-B/cross-tools/x86_64-cerebro-linux-gnu/bin/
-B/cross-tools/x86_64-cerebro-linux-gnu/lib/ -isystem
/cross-tools/x86_64-cerebro-linux-gnu/include -isystem
/cross-tools/x86_64-cerebro-linux-gnu/sys-include    -g -O2 -O2  -g -O2
-DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings -Wcast-qual
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include   -fpic -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector
-fpic -I. -I. -I../.././gcc -I../../../gcc-4.7.0/libgcc
-I../../../gcc-4.7.0/libgcc/. -I../../../gcc-4.7.0/libgcc/../gcc
-I../../../gcc-4.7.0/libgcc/../include  -DHAVE_CC_TLS  -DUSE_TLS -o
_muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c
../../../gcc-4.7.0/libgcc/libgcc2.c 
In file included from ../../../gcc-4.7.0/libgcc/libgcc2.c:29:0:
../../../gcc-4.7.0/libgcc/../gcc/tsystem.h:88:19: fatal error: stdio.h: No
such file or directory
compilation terminated.
make[2]: *** [_muldi3.o] Error 1
make[2]: Leaving directory
`/mnt/root/sources/gcc-build/x86_64-cerebro-linux-gnu/libgcc'
make[1]: *** [all-target-libgcc] Error 2
make[1]: Leaving directory `/mnt/root/sources/gcc-build'

As I understand --without-headers option should prevent compiler from
looking for libc headers. Why therefore it is looking for (and missing)
stdio.h?

Best regards,
Adam

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Skype: amgo100