[Patch]: Add -mmsvcrtd to LIBGCC_SPEC for mingw32

[David Fraser <davidf at sjsoft dot com>]

Hi

This patch adds a -mmsvcrtd option which links with libmsvcrtd.a and 
libmoldnamed.a rather than libmsvcrt.a and libmoldname.a
This uses the debugging version of Microsoft's Visual C Runtime rather 
than the release version. libmsvcrtd.a and libmoldnamed.a were recently 
added to mingw. It is useful for debugging programs to be able to link 
with this library (and linking with both libmsvcrt.a and libmsvcrtd.a 
produces errors).

Could this patch be applied to both the 3.3 branch and the trunk? It 
only changes behaviour if a previously non-existent option is applied, 
so shouldn't cause any problems. I have only attached the patch for the 
trunk here, will attach the other if neccessary. I also have a patch for 
cygwin.h if that is desired.

David

Changelog

2003-02-26  David Fraser  <davidfraser at users dot sourceforge dot net>

	* config/i386/mingw32.h (LIBGCC_SPEC): Add -mmsvcrtd option: libmsvcrt.a libmoldname.a -> libmoldnamed.a libmsvcrtd.a

Index: mingw32.h
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/config/i386/mingw32.h,v
retrieving revision 1.31
diff -c -3 -p -r1.31 mingw32.h
*** mingw32.h   15 Feb 2003 04:58:22 -0000      1.31
--- mingw32.h   26 Feb 2003 08:48:43 -0000
*************** Boston, MA 02111-1307, USA.  */
*** 92,98 ****
 /* Include in the mingw32 libraries with libgcc */
 #undef LIBGCC_SPEC
 #define LIBGCC_SPEC \
!   "%{mthreads:-lmingwthrd} -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt"

 #undef STARTFILE_SPEC
 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \
--- 92,100 ----
 /* Include in the mingw32 libraries with libgcc */
 #undef LIBGCC_SPEC
 #define LIBGCC_SPEC \
!   "%{mthreads:-lmingwthrd} -lmingw32 -lgcc \
!   %{mmsvcrtd: -lmoldnamed} %{!mmsvcrtd: -lmoldname} -lmingwex \
!   %{mmsvcrtd: -lmmsvcrtd} %{!mmsvcrtd: -lmsvcrt}"

 #undef STARTFILE_SPEC
 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \