Date: Mon, 28 Jan 2019 19:42:36 +0000 From: Jorge Almeida <jjalmeida@...il.com> To: musl@...ts.openwall.com Subject: Re: fdopendir (BUG?) On Mon, Jan 28, 2019 at 6:54 PM Adhemerval Zanella <adhemerval.zanella@...aro.org> wrote: > > > > On 28/01/2019 10:37, Jorge Almeida wrote: > > (the problem also occurs with glibc, besides the fact that glibc > > requires also _GNU_SOURCE to compile, contradicting the linux man > > page) > Because O_PATH is a Linux extension and it guards such definitions > with _GNU_SOURCE. And although man-pages is not the canonical glibc > documentation, it does states that O_PATH is only defined if > _GNU_SOURCE is also defined (man-pages commit > 1135dbe188a48d7fa237396ab371ebf74037c1f6 from 2013-02-13). My man page for opendir has the date 2017-09-15 ("release 4.16 of the Linux man-pages project") It says: Feature Test Macro Requirements for glibc (see feature_test_macros(7)): fdopendir(): Since glibc 2.10: _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _GNU_SOURCE I have glibc-2.27
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