Removal of "php_fopen_wrapper" in HEAD will break binary modules between 4.2 and HEAD (4.3)

hi, is there any way we could avoid this? i think we should aim for keeping binary compatiblity as long as it makes sense. so, question is, would it make sense to have a function called php_fopen_wrapper in HEAD that behaves _exactly_ like it did in 4.2. elsewise we need to bump the API number - whereby that wouldn't buy us anything real as a 4.2 (binary) module woundn't even load up to that point where PHP could give a decent error-message as the shared-linker refuses to load it (atleast if the module uses php_fopen_wrapper). thoughts? tc