test-boundingbox.c:152:58: warning: incompatible pointer types passing 'void (const struct _TestBeziers *)' to parameter of type 'GTestDataFunc' (aka 'void (*)(gconstpointer)') [-Wincompatible-pointer-types]
      g_test_add_data_func (testpath, &_test_beziers[i], _check_one_bezier);
                                                         ^~~~~~~~~~~~~~~~~
test-svg.c:117:55: warning: incompatible pointer types passing 'void (const PathData *)' to parameter of type 'GTestDataFunc' (aka 'void (*)(gconstpointer)') [-Wincompatible-pointer-types]
      g_test_add_data_func (testpath, &_test_path[i], _check_one_path);
                                                      ^~~~~~~~~~~~~~~