[pkgsrc/trunk]: pkgsrc/lang/spidermonkey52 lang/spidermonkey52: fix a build b...

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

details:   https://anonhg.NetBSD.org/pkgsrc/rev/420ac31d94c7
branches:  trunk
changeset: 317811:420ac31d94c7
user:      gutteridge <gutteridge%pkgsrc.org@localhost>
date:      Wed Jan 16 02:00:48 2019 +0000

description:
lang/spidermonkey52: fix a build breakage on PowerPC

PowerPC (at least, the variants used on hardware typically supported by
pkgsrc) does not offer the gamut of hardware-backed atomic instructions
that relatively recent versions of SpiderMonkey demand. Fall back to
using GCC's libatomic, so this builds and runs on that architecture.

diffstat:

 lang/spidermonkey52/Makefile |  9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diffs (23 lines):

diff -r cf1b037b21c7 -r 420ac31d94c7 lang/spidermonkey52/Makefile
--- a/lang/spidermonkey52/Makefile      Wed Jan 16 01:36:12 2019 +0000
+++ b/lang/spidermonkey52/Makefile      Wed Jan 16 02:00:48 2019 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.11 2018/12/09 18:52:34 adam Exp $
+# $NetBSD: Makefile,v 1.12 2019/01/16 02:00:48 gutteridge Exp $
 
 DISTNAME=      mozjs-52.7.4
 PKGREVISION=   6
@@ -38,6 +38,13 @@
 .if ${MACHINE_ARCH} == "i386"
 # Needs 8 byte atomics.
 CXXFLAGS+=             -march=i586
+.elif ${MACHINE_ARCH} == "powerpc"
+# PowerPC doesn't have the necessary hardware-backed atomics, it needs
+# GCC's libatomic. pkgsrc's GCC 6 build fails at present on
+# NetBSD 8.0/powerpc, but others >= 4.8 work; tested with 4.8.5 and 7.3.
+GCC_REQD+=             4.8
+USE_PKGSRC_GCC=                yes
+USE_PKGSRC_GCC_RUNTIME=        yes
 .endif
 
 # fails, does not find hg/git checkout