1 files changed, 8 insertions, 1 deletions
diff --git a/src/mesa/main/pack_tmp.h b/src/mesa/main/pack_tmp.h
index 83b65572998..0d4eb387d80 100644
--- a/src/mesa/main/pack_tmp.h
+++ b/src/mesa/main/pack_tmp.h
@@ -22,7 +22,8 @@
  */
 
 static void
-FN_NAME(DST_TYPE *dst,
+FN_NAME(struct gl_context *ctx,
+	DST_TYPE *dst,
 	GLenum dstFormat,
 	SRC_TYPE rgba[][4],
 	int n)
@@ -111,5 +112,11 @@ FN_NAME(DST_TYPE *dst,
 	 dst[i*2+1] = SRC_CONVERT(rgba[i][ACOMP]);
       }
       break;
+
+   default:
+      _mesa_problem(ctx,
+         "Unsupported format (%s)",
+         _mesa_lookup_enum_by_nr(dstFormat));
+      break;
    }
 }