cmake LWS_HAVE__ATOI64 examples

warmcat/libwebsockets CMakeLists.txt :658 

CHECK_FUNCTION_EXISTS(_atoi64 LWS_HAVE__ATOI64)

c-jimenez/open-ocpp 3rdparty/libwebsockets/CMakeLists.txt :582 

CHECK_FUNCTION_EXISTS(_atoi64 LWS_HAVE__ATOI64)

fluffos/fluffos src/thirdparty/libwebsockets/CMakeLists.txt :565 

CHECK_FUNCTION_EXISTS(_atoi64 LWS_HAVE__ATOI64)