[PING][Patch]: multilib fixes for libjava

[Andrew Haley]

Jack Howarth writes:
 > Andrew,
 >     I tested it on Fedora Core 6 x86_64 and it built the
 > multilib fine. The only platform that will show the benefits
 > of the changes currently is Darwin since we are the only
 > ones building a 32-bit compiler by default with a 64-bit
 > multilib. The fix again is to allow this to work on 32-bit
 > processors which can't execute the 64-bit binaries that
 > they create. The current configure scripts in the 
 > effective directories will bail out claiming the -m64
 > executables won't run (when built on 32-bit processors).

OK, I see.  I approve the java/boehm-gc/zlib parts.

Andrew.