[pkgsrc/trunk]: pkgsrc/lang/llvm On i386, use -march=i586 for 64-bit CAS

[gdt <gdt%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/526b4f1a8dbd
branches:  trunk
changeset: 356554:526b4f1a8dbd
user:      gdt <gdt%pkgsrc.org@localhost>
date:      Mon Jan 02 00:03:42 2017 +0000

description:
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.

diffstat:

 lang/llvm/Makefile |  7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diffs (21 lines):

diff -r c070274b4e85 -r 526b4f1a8dbd lang/llvm/Makefile
--- a/lang/llvm/Makefile        Sun Jan 01 22:36:34 2017 +0000
+++ b/lang/llvm/Makefile        Mon Jan 02 00:03:42 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.10 2016/12/17 23:28:34 joerg Exp $
+# $NetBSD: Makefile,v 1.11 2017/01/02 00:03:42 gdt Exp $
 #
 # when updating this, please also update:
 # devel/include-what-you-use
@@ -92,6 +92,11 @@
 # automatically.
 CXXFLAGS+=     -std=c++11
 
+# needs std::atomic with 64-bit CAS
+.if ${MACHINE_ARCH} == "i386"
+CXXFLAGS+=     -march=i586
+.endif
+
 .if ${OPSYS} == "Darwin"
 .PHONY: fix-darwin-install-name
 post-install: fix-darwin-install-name