Test support for automake

[Ralf Hemmecke]

I have a non-recursive Makefile.am with which I build a library foo. I 
list all my tests (quite a lot) in check_PROGRAMS.

All those tests should (of course) get libfoo.la as LDADD, but how 
exactly do I do that _without_ doing a per-target *_LDADD specification. 
Per target specification sounds like a lot of redundancy since all my 
_LDADD specification would just be libfoo.la.
I'd like to add libfoo.la in only _one_ place.
Ralf