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From: Eli Zaretskii <eliz@gnu.org>
To: Evan Klitzke <evan@eklitzke.org>
Cc: emacs-devel@gnu.org
Subject: Re: [PATCH 1/1] Stop using legacy -ffat-lto-objects flag
Date: Mon, 09 Nov 2020 05:23:21 +0200	[thread overview]
Message-ID: <838sbb5i3a.fsf@gnu.org> (raw)
In-Reply-To: <878sbby5pz.fsf@eklitzke.org> (message from Evan Klitzke on Sun,  08 Nov 2020 12:05:28 -0800)

> From: Evan Klitzke <evan@eklitzke.org>
> Date: Sun, 08 Nov 2020 12:05:28 -0800
> 
> Currently when Emacs is configured using the 
> --enable-link-time-optimization configure flag, the build will use the 
> -ffat-lto-objects flag if the host compiler is GCC (but not Clang). 
> According to the comments in configure.ac this is to work around an 
> issue with LTO builds in GCC 4.9.0. This flag makes builds take much 
> longer (and produces much larger object files), so I suggest removing it 
> as GCC 4.x is quite old at this point and doesn't have great LTO support 
> anyway.

I think this is too soon: fencepost.gnu.org, which runs Trisquel LTS,
still has GCC 4.8.4.

Thanks.



  reply	other threads:[~2020-11-09  3:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-08 20:05 [PATCH 1/1] Stop using legacy -ffat-lto-objects flag Evan Klitzke
2020-11-09  3:23 ` Eli Zaretskii [this message]
2020-11-09  8:57   ` Andrea Corallo via Emacs development discussions.
2020-11-09 15:59     ` Eli Zaretskii

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