[cfe-dev] Feature-test macro whether compiling against libc++abi?

Eric Fiselier via cfe-dev cfe-dev at lists.llvm.org
Sat Mar 5 23:15:08 PST 2016

That's by design.
On Feb 26, 2016 7:44 AM, "Stephan Bergmann via cfe-dev" <
cfe-dev at lists.llvm.org> wrote:

> Is there some sort of feature-test macro that client code can use to
> determine whether it is being compiled against libc++abi?
> I see that there is
>   #define _LIBCPPABI_VERSION 1002
> in the libc++abi-provided cxxabi.h.  It would apparently happen to help
> tell libc++abi from libstdc++/libsupc++ (where _LIBCPPABI_VERSION is left
> undefined after #include <cxxabi.h>), but I'm not sure whether that's by
> design or by accident?
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