[pkgsrc/trunk]: pkgsrc/lang/perl5 perl5: Add some comments regarding the hack.

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

details:   https://anonhg.NetBSD.org/pkgsrc/rev/3d2e3bb587dd
branches:  trunk
changeset: 325580:3d2e3bb587dd
user:      maya <maya%pkgsrc.org@localhost>
date:      Wed Nov 21 09:37:57 2018 +0000

description:
perl5: Add some comments regarding the hack.

Requested by leot

diffstat:

 lang/perl5/hacks.mk |  11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diffs (26 lines):

diff -r 344a637e8721 -r 3d2e3bb587dd lang/perl5/hacks.mk
--- a/lang/perl5/hacks.mk       Wed Nov 21 08:33:51 2018 +0000
+++ b/lang/perl5/hacks.mk       Wed Nov 21 09:37:57 2018 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: hacks.mk,v 1.21 2018/11/21 08:33:51 maya Exp $
+# $NetBSD: hacks.mk,v 1.22 2018/11/21 09:37:57 maya Exp $
 
 .if !defined(PERL5_HACKS_MK)
 PERL5_HACKS_MK=        defined
@@ -22,10 +22,13 @@
 BUILDLINK_TRANSFORM+=  opt:-O[0-9]*:-Os
 .endif
 
-# Alignment fault on perl 5.28.0
-# https://rt.perl.org/Public/Bug/Display.html?id=133495
+### [ Wed Nov 21 11:35:48 IST 2018 : maya ]
+### Alignment fault on perl 5.28.0
+### Might be specific to GCC 4.9
+### https://rt.perl.org/Public/Bug/Display.html?id=133495
+### See PR pkg/53568
 .if ${OPSYS} == "SunOS" && !empty(MACHINE_ARCH:Msparc*)
-PKG_HACKS+=            
+PKG_HACKS+=            sun-sparc-alignment-fault
 BUILDLINK_TRANSFORM+=  opt:-O3:-O2
 .endif