libtool dropping -static-libgcc from LDFLAGS

[libtool]

This was reported several years ago
http://lists.gnu.org/archive/html/bug-libtool/2005-10/msg00004.html
but AFAICT was never resolved.

Yesterday, we ran into the problem again over on the cygwin list:
http://cygwin.com/ml/cygwin/2009-02/msg00202.html

I suggested that Corinna attempt Ralf's workaround from 2005-Oct
(namely, configure using CC='gcc -static-libgcc'), which worked.  Ralf,
any ETA on that patch from 2005? <g>

Also, I imagine that mingw would need a similar fix so that
'-shared-libgcc' is not stripped from LDFLAGS.  And, in the name of
consistency, probably all the other -static-lib* and -shared-lib*
switches...

--
Chuck