Re: [PATCH] gnu: simple-scan: Update to 3.19.91.

[Leo Famulari <leo@famulari.name>]

On Wed, Mar 09, 2016 at 12:43:52AM +0100, Tobias Geerinckx-Rice wrote:
> Hullo Leo,
> 
> On 09/03/2016, Leo Famulari <leo@famulari.name> wrote:
> > Except where necessary for the new version to work, it's best to do
> > updates in a separate commit from other changes.
> >
> > I can apply the update myself if you say it's okay to do on its own, or
> > feel free to submit a revised patch set.
> 
> Er, no. This whole thing is pretty — what's the eufemism — atomic:
> 
> PackageKit support is a ‘new’ upstream addition. Guix doesn't ship a
> PackageKit expression. Nor would writing one add much value, since its
> sole purpose is to serve as an abstraction layer for other, ‘impure’
> package managers[1].
> 
> I therefore simply disabled it.

I think that lots of software in our distribution has unused features or
portability "goop" that doesn't apply to us, but we don't delete that
code.

> 
> > Does 'src/ui.c' cause problems for us? I'd rather not make changes to
> > upstream code except when necesssary [0], at least not without
> > discussing it with upstream first.
> 
> However, a stale file (src/ui.c) in the tarball still references packagekit:
> 
>   make[1]: Entering directory
> '/tmp/guix-build-simple-scan-3.19.91.drv-0/build/src'
>     CC       simple_scan-ui.o
>   ../../simple-scan-3.19.91/src/ui.c:28:41: fatal error: \
>      packagekit-glib2/packagekit.h: No such file or directory
>    #include "packagekit-glib2/packagekit.h"
> 
> Simply adding ‘make clean’ doesn't work (because that assumes we're
> building in the source directory and Guix doesn't). Removing the
> offending file fixes the build & seemed more clear.

So, it fails to build from source if you don't delete this file?

I still don't understand why we should delete the source file.

After searching online for "packagekit simple scan" I found the Nix
package definition for Simple Scan 3.19.91. They pass to ./configure
'--disable-packagekit'. Would that work?

https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/graphics/simple-scan/default.nix