cmake LWS_HAVE_CTIME_R examples

warmcat/libwebsockets CMakeLists.txt :663 

CHECK_FUNCTION_EXISTS(ctime_r LWS_HAVE_CTIME_R)

warmcat/libwebsockets CMakeLists.txt :698 

unset(LWS_HAVE_CTIME_R CACHE)

c-jimenez/open-ocpp 3rdparty/libwebsockets/CMakeLists.txt :587 

CHECK_FUNCTION_EXISTS(ctime_r LWS_HAVE_CTIME_R)

fluffos/fluffos src/thirdparty/libwebsockets/CMakeLists.txt :570 

CHECK_FUNCTION_EXISTS(ctime_r LWS_HAVE_CTIME_R)