cmake LWS_HAVE_REALLOC examples

warmcat/libwebsockets CMakeLists.txt :647 

CHECK_FUNCTION_EXISTS(realloc LWS_HAVE_REALLOC)

c-jimenez/open-ocpp 3rdparty/libwebsockets/CMakeLists.txt :571 

CHECK_FUNCTION_EXISTS(realloc LWS_HAVE_REALLOC)

fluffos/fluffos src/thirdparty/libwebsockets/CMakeLists.txt :554 

CHECK_FUNCTION_EXISTS(realloc LWS_HAVE_REALLOC)