pkg/52705: www/seamonkey crashes on i386 when built with -march=prescott

[schaecsn%gmx.net@localhost]

>Number:         52705
>Category:       pkg
>Synopsis:       www/seamonkey crashes on i386 when built with -march=prescott
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Nov 06 17:30:00 +0000 2017
>Originator:     Stefan Schaeckeler
>Release:        pkgsrc-2017Q3
>Organization:
>Environment:
NetBSD t60p 7.0 NetBSD 7.0 (GENERIC) #0: Sat Sep 26 20:21:41 PDT 2015  root@t60p:/usr/obj/sys/arch/i386/compile/GENERIC i386
>Description:
seamonkey works fine when compiled with

CFLAGS=                 -O0 -pipe
CFLAGS=                 -O1 -pipe
CFLAGS=                 -O2 -pipe


seamonkey crashes upon start when compiled with

CFLAGS=                 -O0 -march=prescott -pipe
CFLAGS=                 -O1 -march=prescott -pipe
CFLAGS=                 -O2 -march=prescott -pipe

>How-To-Repeat:

>Fix: