K 10
svn:author
V 2
ed
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svn:date
V 27
2011-12-30T01:37:25.631098Z
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V 333
Extend <stdatomic.h> to support GCC 4.7's __atomic.

The development version of GCC also supports an atomics interface
similar to Clang's. Change the header file to work as follows:

- __CLANG_ATOMICS: Use Clang's new atomics interface,
- __GNUC_ATOMICS: Use GCC's new atomics interface,
- else: fall back to GCC's __sync interface.

END