lintpkgsrc freezes on openmsx

[John Marino <netbsd%marino.st@localhost>]

I use the -L option of pkgsrc to find out why it won't complete any 
scan.  It gets stuck on emulators/openmsx/Makefile

It includes:
lang/python/application.mk
lang/python/pyversion.mk
mk/pthread.buildlink.mk

And then never returns, seems like it's stuck in a circular reference.

After commenting out sections of the makefile, I've narrowed down the 
problem to this line:
LINE 39: CXX=${CXX_OVERRIDE}

For some reason that sends lintpkgsrc spinning.
Is the problem in that program?

John