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From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: 53647@debbugs.gnu.org
Subject: bug#53647: __TIMESTAMP__ CPP macro not honoring SOURCE_EPOCH_DATE
Date: Mon, 31 Jan 2022 00:22:19 -0500	[thread overview]
Message-ID: <877dago4xg.fsf_-_@gmail.com> (raw)
In-Reply-To: <20220130074848.3397-4-maxim.cournoyer@gmail.com> (Maxim Cournoyer's message of "Sun, 30 Jan 2022 02:48:48 -0500")

Hello,

Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

> * gnu/packages/electronics.scm (openboardview): New variable.

I've found a source of nondeterminism in the build of openboardview: the
use of the CPP __TIMESTAMP__ macro (info '(cpp) Common Predefined
Macros').  It seems that GCC 10.3.0 still doesn't doesn't honor
SOURCE_EPOCH_DATE for that macro.  A patch was made to correct this, but
it seems it was never applied [0].  I've ping'd in the #gcc channel to
verify.

I haven't seen the patch carried by Debian for their GCC package.

Thanks,

Maxim

[0]  https://gcc.gnu.org/pipermail/gcc-patches/2016-November/461108.html




  reply	other threads:[~2022-01-31  5:23 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-30  7:45 [bug#53634] [PATCH 0/4] gnu: Add openboardview Maxim Cournoyer
2022-01-30  7:48 ` [bug#53634] [PATCH 1/4] gnu: Add imgui Maxim Cournoyer
2022-01-30  7:48   ` [bug#53634] [PATCH 2/4] gnu: Add glad Maxim Cournoyer
2022-01-30  7:48   ` [bug#53634] [PATCH 3/4] gnu: Add utf8-h Maxim Cournoyer
2022-01-30  7:48   ` [bug#53634] [PATCH 4/4] gnu: Add openboardview Maxim Cournoyer
2022-01-31  5:22     ` Maxim Cournoyer [this message]
2022-01-31  5:45     ` [bug#53634] [PATCH v2 " Maxim Cournoyer
2022-02-09 10:45 ` [bug#53634] [PATCH 0/4] " Ludovic Courtès
2022-02-09 20:30   ` bug#53634: " Maxim Cournoyer

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