Uh, that was stupid. Forgot to remove the NOT.

CMakeLists.txt

@@ -564,7 +564,7 @@ if(USE_UPNP)
 	if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND NOT ANDROID)
 		include(FindMiniupnpc)
 	endif()
-	if(MINIUPNP_FOUND AND NOT MINIUPNPC_VERSION_1_7_OR_HIGHER)
+	if(MINIUPNP_FOUND AND MINIUPNPC_VERSION_1_7_OR_HIGHER)
 		message("Using shared miniupnpc")
 		include_directories(${MINIUPNP_INCLUDE_DIR})
 	else()