LIBRARY = System.ValueTuple.dll
-KEY_FILE = ../../Open.snk
-LIBRARY_SNK = $(KEY_FILE)
-SIGN_FLAGS = /delaysign /keyfile:$(KEY_FILE) /nowarn:1616,1699
+KEYFILE = ../../Open.snk
+LIBRARY_SNK = $(KEYFILE)
+SIGN_FLAGS = /delaysign /nowarn:1616,1699
LIB_REFS =
LIB_MCS_FLAGS = $(SIGN_FLAGS)