cmake _MINIUPNPC_HAVE_VERSION_1_6 examples

ChisBread/transmission_pt_edition cmake/FindMINIUPNPC.cmake :61 

try_compile(_MINIUPNPC_HAVE_VERSION_1_6
                ${CMAKE_BINARY_DIR}
                ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckMiniUPnPC_1.6.c
                COMPILE_DEFINITIONS -DINCLUDE_DIRECTORIES=${MINIUPNPC_INCLUDE_DIR}
                LINK_LIBRARIES ${MINIUPNPC_LIBRARY}
                OUTPUT_VARIABLE OUTPUT)