sys/mount.h vs fcntl.h

[Andreas Schwab]

On Jan 27 2026, DJ Delorie wrote:

> Delegating this check to a test means an error might get introduced and,
> if the user doesn't run all the tests, won't notice.  The #error makes
> the problem visible as early as possible.

The point is that this check should remain internal to glibc, not part
of the installed header.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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