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Re: [PATCH 2/4] gnu: Add steghide.

From: Eric Bavier
Subject: Re: [PATCH 2/4] gnu: Add steghide.
Date: Tue, 23 Aug 2016 17:19:49 -0500

On Tue, 23 Aug 2016 16:16:11 -0400
Leo Famulari <address@hidden> wrote:

> On Tue, Aug 23, 2016 at 01:15:10AM -0500, Eric Bavier wrote:
> > * gnu/packages/image.scm (steghide): New variable.
> > * gnu/packages/patches/steghide-fixes.patch: New patch.
> > * gnu/ (dist_patch_DATA): Add it.  
> > +    (arguments
> > +     `(#:make-flags '("CXXFLAGS=-fpermissive"))) ;required for  
> My understanding is that '-fpermissive' downgrades some compiler errors
> to warnings. Is that correct?

Correct.  Specifically, this is to avoid: error: invalid conversion from ‘uint8_t* {aka unsigned 
char*}’ to ‘char*’ [-fpermissive]

which I'm not comfortable developing a better fix for.

> > diff --git a/gnu/packages/patches/steghide-fixes.patch 
> > b/gnu/packages/patches/steghide-fixes.patch  
> I don't understand what this patch does (I don't know any C++). Can you
> add some comments explaining it? Should we try to get the upstream
> maintainers to apply it?  

This patch fixes an "undefined ULONG_MAX" error and "specializing
member ‘...’ requires ‘template<>’ syntax" errors.

Upstream appears to currently be in limbo, but I just sent the patch to
the mailing list.


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