Log message:
Pullup ticket #5664 - requested by he
devel/gnustep-objc: build fix

Revisions pulled up:
- devel/gnustep-objc/Makefile                                   1.31
- devel/gnustep-objc/buildlink3.mk                              1.11

-------------------------------------------------------------------
   Module Name:	pkgsrc
   Committed By:	he
   Date:		Sun Dec 31 11:20:03 UTC 2017

   Modified Files:
   	pkgsrc/devel/gnustep-objc: Makefile buildlink3.mk

   Log message:
   At least on NetBSD, gnustep-objc's libobjc.so ends up with various
   _Unwind_* symbols undefined, and apparently they can come from -lgcc_s.
   Being cautious, link in -lgcc_s on NetBSD only so far.
   Bump PKGREVISION.

   To generate a diff of this commit:
   cvs rdiff -u -r1.30 -r1.31 pkgsrc/devel/gnustep-objc/Makefile
   cvs rdiff -u -r1.10 -r1.11 pkgsrc/devel/gnustep-objc/buildlink3.mk