[Bug target/63651] Lot of failures in obj(c|-c++) with yosemite

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63651

--- Comment #2 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
(In reply to Francois-Xavier Coudert from comment #1)
> I suppose as a first approach, we could make it equivalent to id.

Not really, apparently: the answer there gives a quite complete description
(and quotes the official Apple docs): http://stackoverflow.com/a/14652187