KEY_FILE = ../../msfinal.pub
SIGN_FLAGS = /delaysign /keyfile:$(KEY_FILE) /nowarn:1616,1699
-LIB_MCS_FLAGS = $(SIGN_FLAGS) /r:mscorlib /r:System.Numerics
+LIB_REFS = System.Numerics
+LIB_MCS_FLAGS = $(SIGN_FLAGS) /r:mscorlib.dll
PLATFORM_DEBUG_FLAGS =