&& (a->flags == b->flags)
_cairo_glyph_cache_keys_equal (void *cache,			       void *k1,			       void *k2){    cairo_glyph_cache_key_t *a, *b;    a = (cairo_glyph_cache_key_t *) k1;    b = (cairo_glyph_cache_key_t *) k2;    return (a->index == b->index)	&& (a->unscaled == b->unscaled)	&& (a->scale.matrix[0][0] == b->scale.matrix[0][0])	&& (a->scale.matrix[0][1] == b->scale.matrix[0][1])	&& (a->scale.matrix[1][0] == b->scale.matrix[1][0])	&& (a->scale.matrix[1][1] == b->scale.matrix[1][1]);}