Log message:
Pullup ticket #5176 - requested by gdt
lang/llvm: build fix

Revisions pulled up:
- lang/llvm/Makefile                                            1.11

---
   Module Name:	pkgsrc
   Committed By:	gdt
   Date:		Mon Jan  2 00:03:42 UTC 2017

   Modified Files:
   	pkgsrc/lang/llvm: Makefile

   Log message:
   On i386, use -march=i586 for 64-bit CAS

   This matches tnn's change to lang/libLLVM.  No PKGREVISION; no change
   on !i386 and on i386 this did not build before.