audioop: explicit cast to fix a compiler warning
diff --git a/Modules/audioop.c b/Modules/audioop.c
index 7e40bbd..4f2b25f 100644
--- a/Modules/audioop.c
+++ b/Modules/audioop.c
@@ -37,7 +37,7 @@
         val = maxval;
     else if (val < minval + 1)
         val = minval;
-    return val;
+    return (int)val;
 }