[trac1077] Add liblog to list of libraries for linking to cache unit tests

src/lib/cache/tests/Makefile.am

@@ -53,6 +53,7 @@ run_unittests_LDADD += -lboost_thread
 endif
 
 run_unittests_LDADD += $(top_builddir)/src/lib/cache/libcache.la
+run_unittests_LDADD += $(top_builddir)/src/lib/log/liblog.la
 run_unittests_LDADD += $(top_builddir)/src/lib/nsas/libnsas.la
 run_unittests_LDADD += $(top_builddir)/src/lib/dns/libdns++.la
 run_unittests_LDADD += $(top_builddir)/src/lib/asiolink/libasiolink.la