(971127) patches for i386-pc-cygwin32

[Jeffrey A Law]

  In message <9711291901.AA16386@modi.xraylith.wisc.edu>you write:
  > This tiny patch is needed for a successful build (and very good test
  > results!) on i386-pc-cygwin32. The rest of my local changes are from
  > Jason Merrill and hopefully he'll put into the next snapshot/release;
  > explicit template instantiation does not work without Jason's changes.
  > 
  > Sat Nov 29 12:45:51 1997  Mumit Khan  <khan@xraylith.wisc.edu>
  > 
  > 	* config/i386/cygwin32.h (DWARF2_UNWIND): Exception handling 
  > 	doesn't work with it yet, so set it to 0.
  > 	* config/i386/x-cygwin32 (USE_COLLECT2): Delete.
  > 	* config/i386/xm-cygwin32.h (NO_SYS_SIGLIST): Define.
I've installed these patches into the mainline sources (actually the
x-cygwin32 patch was already in the mainline sources).

Thanks, sorry we didn't get this info the first release.

jeff