I saw that lang/mawk does not create the directory for the man page.

So I was about to commit INSTALLATION_DIRS for it to create the man
directory.

But now I see that INSTALLATION_DIRS is only in mk/bsd.pkg.mk for creating
at pkgsrc-based install time.

Maybe MAKE_DIRS should be used instead?

Or maybe INSTALLATION_DIRS should set MAKE_DIRS usage?

Or maybe INSTALLATION_DIRS should automatically place some
"@exec ${MKDIR}" lines in the PLIST file?

I'd prefer to not use mtree because it makes unnecessary clutter of
directories on minimal install systems.

   Jeremy C. Reed
   http://bsd.reedmedia.net/