[PATCH] add attribute_hidden to __have_{sock_cloexec,pipe2,dup3

[Mike Frysinger]

On Saturday 18 August 2012 00:55:06 Roland McGrath wrote:
> It's unfortunate that any of those declarations appear in more than one
> include/ header file.  Maybe we can just make sure that any users of
> __have_sock_cloexec include <sys/socket.h>?

we could do that.  i think the decl in unistd.h exists because of the previous 
define aliasing, but now that that is removed, we can probably drop the decl 
from unistd.h.
-mike
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