Hello, I'm trying to make a file to configurate/manipulate variables of a C code.I tried using int and extern int throught a header or another C code but it doesn't seems to work (even throught the makefile). I also tried (with XML) to put a data structure to hold the shared variables with the XML_SetUserData function to pass a pointer to this structure to the handlers. Maybe i did something wrong, but i can't find where. Any help is welcome. Thanks.