Merge head@256308
New dependencies
Updated dependencies
Avoid creating Makefile.depend
Make sure we can find openpam_static.c
We use distrib-dirs to populate stage tree.
But that depends on up-to-date passwd and group files in /etc.
If MK_INSTALL_AS_USER==yes and we are not root, filter the mtree input
to avoid problems with [gu]name and [gu]id settings.
Handle the different expectations of MACHINE_ARCH b/w buildworld etc
and dirdeps.
Make it possible to buildworld, while producing .meta files to aid
debugging.
New/updated dependencies
Allow building these in-line
The build-tools phase sets NO_WARNS
If there is any other purpose (than hosttool during build)
we could make this depend on MACHINE=host.
Use the tools we built for host.
Saver to rm first when making link to dir
Use the tblgen etc we built for host.