If `make install' is run without running `make' first, the $(LIB_DIR)
will not be created. This also changes the mkdir a little bit so that it
isn't run if necessary and added `-p' so that it is immune to races.
Mostly some pedantic changes such that `make clean' always ignores
errors. Also changed the top clean target to do the `touch
configs/current' dance instead of realclean.
In general, use this:
@for dir in $(SUBDIRS) ; do \
if [ -d $$dir ] ; then \
(cd $$dir && $(MAKE)) || exit 1; \
fi \
done
Basically, silently skip missing subdirs but generate an error and stop if
there's a compilation or install problem.
This was done inconsistantly before. In once case, a missing subdir was
causing us to go into an infinte loop!
variable (defaults to "make") and use that. Use the MKDEP and MKDEP_OPTIONS
more. Our shell isn't bash, so change the instances of ">& /dev/null" to a more
compatible "> /dev/null 2>&1".
