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Re: Reproducible gcc builds, gfortran, and -grecord-gcc-switches

From: Michael Matz <matz at suse dot de>
To: Simon Baldwin <simonb at google dot com>
Cc: Gerald Pfeifer <gerald at pfeifer dot com>, gcc at gcc dot gnu dot org
Date: Thu, 16 Aug 2012 16:40:17 +0200 (CEST)
Subject: Re: Reproducible gcc builds, gfortran, and -grecord-gcc-switches
References: <CAPTY64p0=m3O6TOfPf1w1rtF944gHe_ODOsH+Ryx-tdTupVzUA@mail.gmail.com> <alpine.LNX.2.00.1208160912270.2871@gerinyyl.fvgr> <CAPTY64ofrdhFVrYNJcHhyrA3J7vpZ=Y6EPrdoWJEwsv3tm3xyw@mail.gmail.com>

Hi,

On Thu, 16 Aug 2012, Simon Baldwin wrote:

> Thanks for the note.
> 
> To make things more concrete I've appended a prototype patch below.  I 
> don't know if any other languages are affected, but if they are this 
> patch should extend reasonably well to cover those also.  Does anyone 
> have strong objections to this approach?  Thanks.

Do you have considered to use a new option flag (usable in the .opt files) 
instead of a langhook?  I.e. add a flag cl_dont_record to cl_option, a 
string Norecord for the .opt files, some handling for it in 
opt-functions.awk and the like?

Adding lang-hooks used by debug producers make me twitch :)

Ciao,
Michael.

References:
- Reproducible gcc builds, gfortran, and -grecord-gcc-switches
  - From: Simon Baldwin
- Re: Reproducible gcc builds, gfortran, and -grecord-gcc-switches
  - From: Gerald Pfeifer
- Re: Reproducible gcc builds, gfortran, and -grecord-gcc-switches
  - From: Simon Baldwin

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