-LIB_MCS_FLAGS = /r:System.dll /r:System.Configuration.Install.dll \
- /warnaserror /nowarn:0618
-TEST_MCS_FLAGS = $(LIB_MCS_FLAGS) /warnaserror
+LIB_REFS = System System.Configuration.Install System.Windows.Forms
+LIB_MCS_FLAGS = /nowarn:0618
+TEST_MCS_FLAGS = $(LIB_MCS_FLAGS)