- disable coverage tests (undefined references)
- fix LDFLAGS for cunit

Index: test/unit/Makefile
--- test/unit/Makefile.orig
+++ test/unit/Makefile
@@ -1,13 +1,13 @@
 include ../../config.mk
 
-.PHONY: all check test test-broker test-lib clean coverage
+.PHONY: all check test test-broker test-lib clean
 
 CPPFLAGS:=$(CPPFLAGS) -I../.. -I../../include -I../../lib -I../../src
 ifeq ($(WITH_BUNDLED_DEPS),yes)
         CPPFLAGS:=$(CPPFLAGS) -I../../deps
 endif
 
-CFLAGS:=$(CFLAGS) -coverage -Wall -ggdb
+CFLAGS:=$(CFLAGS) -Wall -ggdb
 LDFLAGS:=$(LDFLAGS) -coverage
 LDADD:=$(LDADD) -lcunit