Bug#950252: Consider linking against archive version of libstb

[Simon McVittie]

On Thu, 30 Jan 2020 at 07:31:25 -0800, Moritz Muehlenhoff wrote:
> yquake2 embeds
> 
> src/client/refresh/files/stb_image_resize.h
> src/client/refresh/files/stb_image.h
> src/client/sound/header/stb_vorbis.h
> src/client/vid/header/stb_image_write.h
> 
> These are also available in src:libstb, so please consider switching to the in-archive copy.

Are we confident that the in-archive libstb is API- and ABI-stable?

Normally I wouldn't ask, but if I'm understanding correctly, stb is a
collection of single-file libraries designed to be embedded in larger
projects, which tends to encourage an approach of breaking API/ABI
whenever convenient, and expecting dependent projects to deal with
the changes (on their own timescale) next time they resync with the
canonical copy.

    smcv