pkg/51090: emacs21 does not package

[Thomas Klausner <wiz%NetBSD.org@localhost>]

>Number:         51090
>Category:       pkg
>Synopsis:       emacs21 does not package
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Apr 24 16:25:00 +0000 2016
>Originator:     Thomas Klausner
>Release:        NetBSD 7.99.28
>Organization:
Curiosity is the very basis of education and if you tell me that 
curiosity killed the cat, I say only that the cat died nobly.
- Arnold Edinborough
>Environment:
	
	
Architecture: x86_64
Machine: amd64
>Description:
emacs dumps core during the build, which leads to setlist issues.

=> Checking file-check results for emacs21-21.4anb34
ERROR: ************************************************************
ERROR: The following files are in the PLIST but not in /scratch/editors/emacs21/work/.destdir/usr/pkg:
ERROR:         /scratch/editors/emacs21/work/.destdir/usr/pkg/share/emacs/21.4/lisp/fast-lock.elc
ERROR:         /scratch/editors/emacs21/work/.destdir/usr/pkg/share/emacs/21.4/lisp/mail/smtpmail.elc
ERROR:         /scratch/editors/emacs21/work/.destdir/usr/pkg/share/emacs/21.4/lisp/sort.elc
ERROR: ************************************************************
ERROR: The following files are in /scratch/editors/emacs21/work/.destdir/usr/pkg but not in the PLIST:
ERROR:         /scratch/editors/emacs21/work/.destdir/usr/pkg/share/emacs/21.4/lisp/emacs.core
*** Error code 1

emacs24 works fine for me.
>How-To-Repeat:
Try building on 7.99.28/amd64.
>Fix:
Not provided.
When I copy emacs24/hacks.mk, I get a different failure:

dispnew.o: In function `copy_glyph_row_contents':
dispnew.c:(.text+0x229c): undefined reference to `copy_row_except_pointers'
dispnew.o: In function `assign_row':
dispnew.c:(.text+0x2384): undefined reference to `copy_row_except_pointers'
dispnew.o: In function `mirror_line_dance':
dispnew.c:(.text+0x5a39): undefined reference to `copy_row_except_pointers'
syntax.o: In function `back_comment':
syntax.c:(.text+0x3eb6): undefined reference to `dec_bytepos'
syntax.o: In function `scan_words':
syntax.c:(.text+0x6576): undefined reference to `dec_bytepos'
syntax.o: In function `Fforward_comment':
syntax.c:(.text+0xcb16): undefined reference to `dec_bytepos'
syntax.o: In function `scan_lists':
syntax.c:(.text+0xff57): undefined reference to `dec_bytepos'
syntax.c:(.text+0x1232f): undefined reference to `dec_bytepos'
syntax.o:syntax.c:(.text+0x128b2): more undefined references to `dec_bytepos' follow
Makefile:107: recipe for target 'temacs' failed

>Unformatted: