On 07/23/2012 12:59 PM, Ian Romanick wrote: > Perhaps someone can refresh my memory as to what exactly this option > does? Can we make this the default and remove the option from configure?
The --enable-shared-glapi option allows programs to use both libGL.so and libGLESv2.so without zillions of conflicting linker symbols. IIRC it basically extracts the API dispatch stuff into libglapi.so and makes both libraries depend on a single copy. I'm failing at email archaeology, but I know we've talked about this before. I believe Chia-I said he thought it would be a good idea to make it the default, but essentially left the option as a chicken bit, in case it didn't work in all situations. It looks like Matt Turner, Jon Turney, and Homer Hsing also approved of the change. Somebody had a patch but I can't find it now. The only trouble I know about is that if your libglapi gets out of sync with your libGL/libGLES, all hell breaks loose: glCompileShader gets routed to glLinkProgram and so on. Apps fail in spectacular ways. But as long as you keep them in sync (and it's not hard), then it works fine. I'm all for making shared-glapi mandatory. People who care about GLES will want it (and thus distros would want it), there's no real downside, and reducing the number of configurations would be great. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
