On 13 December 2016 at 18:24, Ilia Mirkin <imir...@alum.mit.edu> wrote: > On Tue, Dec 13, 2016 at 1:19 PM, Emil Velikov <emil.l.veli...@gmail.com> > wrote: >> On 13 December 2016 at 18:06, Ilia Mirkin <imir...@alum.mit.edu> wrote: >>> On Tue, Dec 13, 2016 at 12:33 PM, Emil Velikov <emil.l.veli...@gmail.com> >>> wrote: >>>> A workaround which just make to mind: >>>> - keep --with-egl-platforms around and it's heuristics (which will >>>> also be applied for --with-platforms). >>>> - keep the --with-egl-platforms decisions for EGL only, and let one >>>> override it via --with-platforms. Warn as the latter happens. >>>> - warn for the deprecation of --with-egl-platforms >>> >>> And really --with-platforms is --with-egl-platforms + >>> --with-vulkan-platforms (which I realize doesn't presently exist). >>> >>> And the reason you don't want to add it is that you're afraid someone >>> will do something like >>> >>> --with-egl-platforms=drm --with-vulkan-platforms=x11 >>> >>> and it's a pain to make it so that EGL only has drm and vulkan only >>> has x11? And eventually one might also want --with-vdpau-platforms, >>> --with-vaapi-platforms, --with-whoknowswhat-platforms, and you don't >>> want to keep adding them, since the chances that you *really* want >>> those to be different for legitimate reasons is ... low. >>> >>> Is that right? >>> >> Precisely. >> >> If there is a legitimate reason, one can do a second mesa build... as >> we do for DRI vs XLIB powered libGL, classic vs gallium OSMesa, etc. >> Afacit having things configurable at such state is not supported by >> either of the three build systems nor something that will scale - be >> that from code or test POV. > > That all makes sense. I think that keeping --with-egl-platforms as a > hidden option into eternity (or at least for a while until it becomes > very unlikely to cross a bisect boundary) is my preferred solution, > which sets the default value of --with-platforms. If you set both, > then --with-platforms wins. And if you want to really be nice, warn > about it. > > Is that roughly what you had in mind with your last suggestion? > Barring a "s/eternity/2-20 releases" - yes,. it's exactly what I was thinking/talking about.
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