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Re: [PATCH] gcc: read -fdebug-prefix-map OLD from environment (improved reproducibility)

From: Daniel Kahn Gillmor <dkg at fifthhorseman dot net>
To: gcc-patches at gcc dot gnu dot org
Date: Thu, 10 Dec 2015 17:05:45 -0500
Subject: Re: [PATCH] gcc: read -fdebug-prefix-map OLD from environment (improved reproducibility)
Authentication-results: sourceware.org; auth=none
References: <87egf1mxfl dot fsf at alice dot fifthhorseman dot net> <1449768978-3872-1-git-send-email-dkg at fifthhorseman dot net>

On Thu 2015-12-10 12:36:18 -0500, Daniel Kahn Gillmor wrote:
> Work on the reproducible-builds project [0] has identified that build
> paths are one cause of output variation between builds.  This
> changeset allows users to avoid this variation when building C objects
> with debug symbols, while leaving the default behavior unchanged.

I've now opened a bugzilla issue about this as well, with patch
attached:

   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68848

   --dkg

References:
- [PATCH] gcc: read -fdebug-prefix-map OLD from environment (improved reproducibility)
  - From: Daniel Kahn Gillmor

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