Geoff,
We seem to have the same issue in libffi when compiled on Darwin PPC
at -m64...
/sw/src/fink.build/gcc4-4.1.9999-20060915/darwin_objdir/./gcc/xgcc
-B/sw/src/fink.build/gcc4-4.1.9999-20060915/darwin_objdir/./gcc/
-B/sw/lib/gcc4/powerpc-apple-darwin8/bin/
-B/sw/lib/gcc4/powerpc-apple-darwin8/lib/ -isystem
/sw/lib/gcc4/powerpc-apple-darwin8/include -isystem
/sw/lib/gcc4/powerpc-apple-darwin8/sys-include -m64 -DHAVE_CONFIG_H -I.
-I../../../../gcc-4.2-20060915/libffi -I. -I.
-I../../../../gcc-4.2-20060915/libffi/include -Iinclude
-I../../../../gcc-4.2-20060915/libffi/src -Wall -g -fexceptions -O2 -g -O2 -m64
-MT src/powerpc/ffi_darwin.lo -MD -MP -MF src/powerpc/.deps/ffi_darwin.Tpo -c
../../../../gcc-4.2-20060915/libffi/src/powerpc/ffi_darwin.c -fno-common -DPIC
-o src/powerpc/.libs/ffi_darwin.o
../../../../gcc-4.2-20060915/libffi/src/powerpc/ffi_darwin.c: In function
'ffi_prep_args':
../../../../gcc-4.2-20060915/libffi/src/powerpc/ffi_darwin.c:117: warning: cast
from pointer to integer of different size
which is the line...
*next_arg++ = (unsigned)(char *)ecif->rvalue;
FYI,
Jack
