Avoid warning

mpi/tests/temporary.c

@@ -53,7 +53,7 @@ int main(int argc, char **argv)
 	int rank, size, n;
 	int ret;
 	int a;
-	int val0, val1;
+	int val0 = 0, val1 = 0;
 	starpu_data_handle_t data0, data1, tmp0, tmp, tmp2;
 
 	ret = starpu_init(NULL);