[PATCH] Use __atomic_exchange_n with GCC instead of Clang's __sync_swap

[David Majnemer]

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Comment at: src/cxa_handlers.cpp:105
@@ -104,3 +104,3 @@
 
-extern "C" new_handler __cxa_new_handler = 0;
+new_handler __cxa_new_handler = 0;
 // In the future these will become:
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Why is the extern "C" removed from here? Looks unrelated.

http://reviews.llvm.org/D5604