show-all-depends-dirs
show-all-depends-dirs-excl
Replace them with calls to pkgsrc/mk/scripts/depends-depth-first.awk
which does the same thing but without the extra overhead of invoking
a recursive make.
environment ${PKGSRC_MAKE_ENV} is also passed along. Create a
convenience variable RECURSIVE_MAKE that does exactly this and that
can be used in place of MAKE when invoking make recursively.
Use RECURSIVE_MAKE everywhere in pkgsrc/mk that we invoke make
recursively.
