[patch] ppc64 native target for gcc

[Jack Howarth]

Brad,
   It is pointless to attempt to build java on the powerpc64-*-darwin*
target since we still don't have a working 64-bit version of libffi
on Darwin PPC. The multilib build of java on powerpc-*-darwin* only
completes at -m64 because it uses the 32-bit binaries for the java
utilities. As for fortran, you will need to install the gmp-64bit
package from fink unstable. We also need to create a matching package
for libmpfr1-64-bit as well. I'll look into that this weekend.
  As to the build itself, check try...

setenv gcc "gcc -m64"
setenv ld ld64

../gcc/configure --prefix=/Users/howarth/work/gcc42 --enable-languages=c,c++ --host=powerpc64-apple-darwin8 --target=powerpc64-apple-darwin8 --disable-multilib
make

          Jack