* aclocal.m4 (SubdirLibRule): don't recreate DONE if list of objs

	* aclocal.m4 (SubdirLibRule): don't recreate DONE if list of objs
		is null to avoid re-making lotsa stuff.
		(_MAKE_SUBDIRS): really gross sh hack for subdir
		recursion; make -[ik] should dtrt now even with broken
		makes (like Ultrix) that do sh -ce "rule".  Basically,
		throw an "if" test around the recursion line so that even
		if the -e option to sh is set by make, an error in a
		subdir below won't cause for loop to exit unless we want
		it to.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@6218 dc483132-0cff-0310-8789-dd5450dbe970