Fix make installcheck

Make installcheck would fail unless make check had been run before it.
Reported by Erik Brangs <erik.brangs@gmx.de>

* tests/Makefile.am (installcheck-local): Depend on $(check_PROGRAMS)

tests/Makefile.am

@@ -258,7 +258,7 @@ check-full:
 #check_SCRIPTS = tar
 
 # Run the test suite on the *installed* tree.
-installcheck-local:
+installcheck-local: $(check_PROGRAMS)
 	$(SHELL) $(TESTSUITE) $(TESTSUITEFLAGS) AUTOTEST_PATH=$(exec_prefix)/bin