Updated Makefiles based on feedback from Rune Magnussen <rum@bankdata.dk>

software/infnoise.c

@@ -6,6 +6,7 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <ftdi.h>