no binary gdb/gdb for powerpc-apple-darwin7.2.0

[Joe Corneli]

I just ran ./configure.

It prints something like this

./configure
loading cache ./config.cache
checking host system type... powerpc-apple-darwin7.2.0
checking target system type... powerpc-apple-darwin7.2.0
checking build system type... powerpc-apple-darwin7.2.0
*** This configuration is not supported in the following subdirectories:
     bfd opcodes gdb
    (Any other directories should still work fine.)
*snip*

I guess this means that I can't build GDB on my PPC?  If this is
correct, it would have been be helpful if this was made a little bit
more clear so I didn't have to hunt around for the binary that isn't
there.