pkg/60371: multimedia/x265 fails on certain 32 bit archs

["john%ziaspace.com@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60371
>Category:       pkg
>Synopsis:       multimedia/x265 fails on certain 32 bit archs
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 25 22:55:00 +0000 2026
>Originator:     John Klos
>Release:        NetBSD 11.99.6
>Organization:
	
>Environment:
	
	
System: NetBSD attic.zia.io 11.99.6 NetBSD 11.99.6 (BRIGGS) #0: Wed Jun 10 04:46:23 UTC 2026 john%frigg.zia.io@localhost:/usr/current/obj-mac68k/sys/arch/mac68k/compile/BRIGGS mac68k
Architecture: m68k
Machine: mac68k
>Description:
	
Trying to build multimedia/x265 on, at least, m68k and powerpc fails with:

...
[ 96%] Building CXX object CMakeFiles/cli.dir/abrEncApp.cpp.o
[ 98%] Linking CXX executable x265
ld: libx265.so.216: undefined reference to `__sync_fetch_and_add_8'

>How-To-Repeat:
	
Try to build multimedia/x265 on a 32 bit arch like m68k, PowerPC, earmv6hf
and see the results.

>Fix:
	
Perhaps add -DNO_ATOMICS=1 to CMAKE_CONFIGURE_ARGS for archs without 64 bit atomics.

>Unformatted: