pkg/60869: bring back editors/emacs21

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>Number:         60869
>Category:       pkg
>Synopsis:       bring back editors/emacs21
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Oct 13 00:05:00 +0000 2026
>Originator:     Stefan Schaeckeler
>Release:        pkgsrc-2026Q3
>Organization:
>Environment:
NetBSD xxxx 11.0 NetBSD 11.0 (GENERIC) #0: Fri Aug  7 09:30:25 PDT 2026  root@dell:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
>Description:
editors/emacs21 got removed from pkgsrc-2026Q3.

I assume the main reason was xaw toolkit support not compiling, anymore. emacs21 still compiles and works when building against motif, though.

Would it be possible to bring back emacs21 with just motif support for as long as that works?
>How-To-Repeat:
I copied the pkgsrc-2026Q2 editors/emacs21 directory into pkgsrc-2026Q3 and built it with

PKG_OPTIONS.emacs+=      motif

It builds and runs like a charm.
>Fix: