[bug#46337] A patch to enable building proprietary codecs in qtwebengine

[Leo Famulari]

On Mon, Feb 08, 2021 at 11:44:42PM +0000, pkill9 wrote:
> I accidentally used two dashes instead of one, here is another patch
> that fixes this.

> From f6dde87ee7749727293ade2ef3f9a2fbaf0f7c1f Mon Sep 17 00:00:00 2001
> From: Pkill -9 <pkill9@runbox.com>
> Date: Mon, 8 Feb 2021 22:24:13 +0000
> Subject: [PATCH] gnu/packages/qt.scm: Enable proprietary codecs support (h264)
>  in qtwebengine

It fails like this:

------
starting phase `configure'
Info: creating stash file 
/tmp/guix-build-qtwebengine-5.15.2.drv-0/qtwebengine-everywhere-src-5.15.2/.qmake.stash
Info: creating cache file 
/tmp/guix-build-qtwebengine-5.15.2.drv-0/qtwebengine-everywhere-src-5.15.2/.qmake.cache
ERROR: Unknown command line option '-system-openh264'.
command "qmake" "QT_BUILD_PARTS = libs tools" "--" 
"--webengine-printing-and-pdf=no" "--webengine-ffmpeg=system" 
"--webengine-icu=system" "--webengine-pepper-plugins=no" 
"-webengine-proprietary-codecs" "-system-openh264" failed with status 3
------

I know that I said we could test the patch on the build farm, because
this packages requires a lot of resources to build. However, can you at
least make sure that the configure phase succeeds on your end?