[PATCH] glx: do not pick sRGB config for 32-bit RGBA visual

[Adam Jackson]

On Mon, 2017-12-11 at 07:53 +0200, Tapani Pälli wrote:
> Hi;
> 
> Any comments? Without this change there will be issues with certain 
> Linux desktops when distributions start to use Mesa 17.4.

I've merged Thomas' GLX visual setup changes to the 1.19 branch since
at least fdobz#102086 has a positive confirmation of the fix and I'm
already late in delivering 1.19.6. This change could still be correct
but I didn't have much success in reproducing the issue to begin with;
maybe I just don't know what I'm looking for.

- ajax