pkg/53379: www/seamonkey PLIST error on arm

[mayuresh%acm.org@localhost]

>Number:         53379
>Category:       pkg
>Synopsis:       www/seamonkey PLIST error on arm
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jun 17 13:40:00 +0000 2018
>Originator:     Mayuresh
>Release:        pkgsrc current as of filing
>Organization:
>Environment:
NetBSD pi 8.0_RC1 NetBSD 8.0_RC1 (RPI2.201804240813Z) evbarm

>Description:
PLIST errors on arm

=> Generating post-install file lists
pkg_create: can't stat
`/usr/pkgsrc/www/seamonkey/work/.destdir/usr/pkg/lib/seamonkey/libmozavcodec.so'
pkg_create: can't stat
`/usr/pkgsrc/www/seamonkey/work/.destdir/usr/pkg/lib/seamonkey/libmozavutil.so'
=> Checking file-check results for seamonkey-2.49.2nb6
ERROR: ************************************************************
ERROR: The following files are in the PLIST but not in
/usr/pkgsrc/www/seamonkey/work/.destdir/usr/pkg:
ERROR:
/usr/pkgsrc/www/seamonkey/work/.destdir/usr/pkg/lib/seamonkey/libmozavcodec.so
ERROR:
/usr/pkgsrc/www/seamonkey/work/.destdir/usr/pkg/lib/seamonkey/libmozavutil.so
*** Error code 1

>How-To-Repeat:
Compile www/seamonkey on arm
>Fix:
Martin Husemann suggested on pkgsrc-users list

${PLIST.avx86}lib/firefox/libmozavcodec.so
${PLIST.avx86}lib/firefox/libmozavutil.so

and:

.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64"
PLIST.avx86=    yes     # see media/libav/README_MOZILLA: only used on x86
.endif