Error compiling for target=i386 on host=x86_64

Hello,

i got bellow error why compiling crosstool-ng 1.1.2 on x86_64 host to i386 target :

No rule to make target `/export/crosstool/targets/i386-pc-linux-gnu/build/build-libc/nptl/pthread_spin_trylock.o', needed by `lib-noranlib'.  Stop.

My choices :
kernel 2.6.25.1, binutils 2.18, gcc 4.2.3, glibc 2.6.1, NPTL, hard float

Any idea ?

Regards
Agbanle