diff -up gt-0.4/src/playmidi.c~ gt-0.4/src/playmidi.c
--- gt-0.4/src/playmidi.c~ 2004-11-18 21:36:17.000000000 +0100
+++ gt-0.4/src/playmidi.c 2020-03-06 23:23:58.056972233 +0100
@@ -3140,7 +3140,6 @@ static int xmp_epoch = -1;
static unsigned xxmp_epoch = 0;
static unsigned time_expired = 0;
static unsigned last_time_expired = 0;
-extern int gettimeofday (struct timeval *, struct timezone *);
static struct timeval tv;
static struct timezone tz;
static void