[rfa/rfc] Build libcommon.a for gdb and gdbserver

[Tom Tromey]

>>>>> "Yao" == Yao Qi <yao@codesourcery.com> writes:

Yao> Personally, I still prefer a separated configure/makefile in common/,
Yao> because,
Yao> 1.  if my patch works, configure/make is not a problem,
Yao> 2.  if we look forward, there should be quite a few *.c and *.h files in
Yao> common in the future.  Write rules in both gdb/Makefile.in and
Yao> gdbserver/Makefile.in doesn't scale.

I think the most important thing is that if you want to keep the
common/configure stuff, then please fix the existing problems that have
been reported.  Maybe it is just the GNU make-ism at this point, I
haven't kept track.

Tom