misc/53989: build error with MKX11MOTIF=yes in mk.conf

[chris%groessler.org@localhost]

>Number:         53989
>Category:       misc
>Synopsis:       build error with MKX11MOTIF enabled
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 18 00:30:00 +0000 2019
>Originator:     Christian Groessler
>Release:        NetBSD 8.99.34
>Organization:
	
>Environment:
	
	
System: NetBSD hp-sepp 8.99.34 NetBSD 8.99.34 (GENERIC) #0: Thu Feb 14 16:28:26 CET 2019 root@hp-sepp:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
Trying to rebuild the system with MKX11MOTIF=yes in /etc/mk.conf fails.

Contents of /etc/mk.conf:
MKCATPAGES=yes
MKCOMPAT=yes
MKCTF=yes
MKDEBUG=yes
MKDEBUGLIB=yes
MKDYNAMICROOT=no
MKOBJ=yes
MKOBJDIRS=yes
MKX11=yes
MKX11MOTIF=yes
TOOLDIR=/usr/tools

Build error:
--- GLwMDrawA.d ---
#    create  libGLw/GLwMDrawA.d
CC=/usr/tools/bin/x86_64--netbsd-gcc /usr/tools/bin/nbmkdep -f GLwMDrawA.d.tmp  --   -std=gnu99   --sysroot=/ -I/usr/pkg/include -DCSRG_BASED -DFUNCPROTO=15 -DNARROWPROTO -I/usr/X11R7/include -D__AMD64__     /usr/xsrc/external/mit/glw/dist/GLwMDrawA.c &&  mv -f GLwMDrawA.d.tmp GLwMDrawA.d
In file included from /usr/xsrc/external/mit/glw/dist/GLwMDrawA.c:41:0:
/usr/xsrc/external/mit/glw/dist/GLwDrawA.c:53:10: fatal error: Xm/PrimitiveP.h: No such file or directory
 #include <Xm/PrimitiveP.h>
          ^~~~~~~~~~~~~~~~~
compilation terminated.
nbmkdep: compile failed.
*** [GLwMDrawA.d] Error code 1

make[4]: stopped in /usr/src/external/mit/xorg/lib/libGLw


I didn't find this file (PrimitiveP.h) in neither the src/ nor the xsrc/ tree.

According to mk.conf(5) this MKX11MOTIF is a valid configuration option.
>How-To-Repeat:
	
>Fix:
	

>Unformatted: