--- flip.c +++ flip.c @@ -7,6 +7,7 @@ #include <stdlib.h> #include <stdio.h> +#include <string.h> #include <sys/time.h> #include <unistd.h> #include <aalib.h> --- main.c +++ main.c @@ -2,6 +2,7 @@ #include "image.h" #include "ui.h" #include "config.h" +#include <string.h> #define NAMELEN 256