toolchain/51120: alpha can't build perl

[martin%NetBSD.org@localhost]

>Number:         51120
>Category:       toolchain
>Synopsis:       alpha can't build perl
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat May 07 16:35:00 +0000 2016
>Originator:     Martin Husemann
>Release:        NetBSD 7.99.29
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: 
NetBSD alien-from-alpha-centauri 7.99.29 NetBSD 7.99.29 (ALIEN-FROM-ALPHA-CENTAURI) #0: Sat May  7 18:30:49 CEST 2016  martin%martins.aprisoft.de@localhost:/ssd/src/sys/arch/alpha/compile/ALIEN-FROM-ALPHA-CENTAURI alpha
Architecture: alpha
Machine: alpha
>Description:

New gcc and/or binutils misbhave, so trying to build perl from pkgsrc
fails with a core dump (and the kernel logs unaligned accesses)

#0  0x0000000000000000 in ?? ()
#1  0x00000001201a262c in ?? ()
#2  0x000003fffdeba758 in __errno () from /usr/lib/libc.so.12
#3  0x0000000120185910 in Perl_PerlIO_read ()
#4  0x0000000000000000 in ?? ()

(not sure how much I'd trust that backtrace)

>How-To-Repeat:
s/a

>Fix:
n/a