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From: Florian Weimer <fweimer@redhat.com>
To: Ola x Nilsson via Libc-help <libc-help@sourceware.org>
Cc: Ola x Nilsson <ola.x.nilsson@axis.com>
Subject: Re: ppoll with -D_TIME_BITS=64 and -D_FORTIFY_SOURCE
References: <jwqpmdwqtti.fsf@axis.com>
Date: Wed, 09 Nov 2022 12:34:01 +0100
In-Reply-To: <jwqpmdwqtti.fsf@axis.com> (Ola x. Nilsson via Libc-help's
	message of "Wed, 9 Nov 2022 09:31:21 +0100")
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* Ola x. Nilsson via Libc-help:

> I've run into some problems when building programs using ppoll on a
> 32bit system with
> -D_TIME_BITS=64 -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE -O

There's already discussion on a bug and on libc-alpha:

  ppoll() does not switch to __ppoll64 when -D_TIME_BITS=64 and
  -D_FORTIFY_SOURCE=2 is given on 32bit
  <https://sourceware.org/bugzilla/show_bug.cgi?id=29746>

  [PATCH v4] Linux: Add ppoll fortify symbol for 64 bit time_t (BZ# 29746)
  <https://sourceware.org/pipermail/libc-alpha/2022-November/143344.html>
  (plus earlier threads for previous versions)

Thanks,
Florian