[Bug target/52268] tls support should be added for darwin11

[egall at gwmail dot gwu.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52268

Eric Gallager <egall at gwmail dot gwu.edu> changed:

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                 CC|                            |egall at gwmail dot gwu.edu

--- Comment #7 from Eric Gallager <egall at gwmail dot gwu.edu> ---
I'm kind of confused about whether gcc actually has tls support on darwin or
not; I could have sworn I was able to use gcc 4.8 to compile some code that
used `__thread` on darwin the other day, but according to this bug, that should
have been impossible, right? Did gcc just ignore it silently or something?