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Re: atomic cas, again; PHP this time

Andreas Schwab dixit:

>What if the syscall doesn't exist?


On the source side, I’m doing an && defined(__linux__).
On the packaging side, this has pre-dependencies on a
libc6 with TLS, so it will exist.

But for people compiling this separately, that may not
be enough, indeed.

How about dropping the #ifndef for the syscall number?

  “Having a smoking section in a restaurant is like having
          a peeing section in a swimming pool.”
						-- Edward Burr

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