I was able to build kdebase2 on 1.5, but on my -current (1.5S, 2 days old)
system the build fails with the following:
gmake[3]: *** No rule to make target `greeter/libKdmGreet.la', needed by `kdm'.  Stop.

If I grep the work/kdebase-2.1/kdm/greeter/Makefile for the above, I see
this:

EXTRA_LTLIBRARIES = libKdmGreet.la
#>- libKdmGreet.la: $(libKdmGreet_la_OBJECTS) $(libKdmGreet_la_DEPENDENCIES)
libKdmGreet.la: libKdmGreet.la.closure $(libKdmGreet_la_OBJECTS) $(libKdmGreet_la_DEPENDENCIES)
#libKdmGreet.la: $(libKdmGreet_la_OBJECTS) $(libKdmGreet_la_DEPENDENCIES)
libKdmGreet.la.closure: $(libKdmGreet_la_OBJECTS) $(libKdmGreet_la_DEPENDENCIES)
	@rm -f libKdmGreet_la_closure.* libKdmGreet.la.closure
	@echo "timestamp" > libKdmGreet.la.closure
	-rm -f  libKdmGreet.la.closure

Looks to me like the target _is_ wrong, but I don't know, especially with
all of this libtool business. :-)

-Andrew