libafs: Create debug KMODDIR for FBSD debug inst
Commit
99418024 (libafs: Create $(DESTDIR)$(KMODDIR) on FBSD inst)
made it so we create the kmod installation dir before copying our
module into it. However, if we build a 'debug' variant of our module,
the FreeBSD build process also installs debug symbols in a different
directory, ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}, which may not exist.
So do the same thing for that dir too, if --enable-debug-kernel is
turned on, so the build still works.
To do this, introduce the LIBAFS_REQ_DIRS var, to make it easier to
keep track of which dirs we may need to create.
Change-Id: Id1ad72f6c19d5949d38ee97334b4014ae6ef16ad
Reviewed-on: https://gerrit.openafs.org/13690
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Tested-by: Andrew Deason <adeason@sinenomine.net>