Silence compiler warning about unused parameter in SDL callback

diff --git a/tracker/main.c b/tracker/main.c
index 0e65317451099eb6e841bc79c092dfaf0fc4d110..92a0a71c5be9df9700071840f203c461d41fe9ff 100644 (file)
--- a/tracker/main.c
+++ b/tracker/main.c
@@ -54,6 +54,7 @@ const struct track trackdata = {
 };
 
 void audiocb(void *userdata, Uint8 *buf, int len) {
+    (void) userdata;        /* Unused parameter */
        int i;
 
        for(i = 0; i < len; i++) {