use of undeclared identifier '__ATOMIC_ACQ_REL' when building llvm-3.1 on Fedora 17

[TASAKA Mamoru]

Ilyes Gouta wrote, at 09/01/2012 11:06 PM +9:00:
> Hi,
>
> I'm getting the following errors, when attempting to build llvm-3.1
> (from f18) on my Fedora 17 setup.
>
> In file included from
> /usr/bin/../lib/gcc/x86_64-redhat-linux/4.7.0/../../../../include/c++/4.7.0/iterator:63:
> In file included from
> /usr/bin/../lib/gcc/x86_64-redhat-linux/4.7.0/../../../../include/c++/4.7.0/ostream:39:
> In file included from
> /usr/bin/../lib/gcc/x86_64-redhat-linux/4.7.0/../../../../include/c++/4.7.0/ios:42:
> In file included from
> /usr/bin/../lib/gcc/x86_64-redhat-linux/4.7.0/../../../../include/c++/4.7.0/bits/ios_base.h:40:
> /usr/bin/../lib/gcc/x86_64-redhat-linux/4.7.0/../../../../include/c++/4.7.0/ext/atomicity.h:48:45:
> error: use of undeclared identifier '__ATOMIC_ACQ_REL'
>    { return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }
>                                              ^
> /usr/bin/../lib/gcc/x86_64-redhat-linux/4.7.0/../../../../include/c++/4.7.0/ext/atomicity.h:52:38:
> error: use of undeclared identifier '__ATOMIC_ACQ_REL'
>    { __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }

This issue is currently tracked on:
https://bugzilla.redhat.com/show_bug.cgi?id=845713

Regards,
Mamoru