On Nov 4, 2013, at 10:15, Ian Romanick <[email protected]> wrote: > On 11/02/2013 10:09 AM, Jeremy Huddleston Sequoia wrote: >> Why does this now require mesa 9.2.0? >= 9.0 doesn't build on OS X, >> and I haven't had time to address the issue in mesa. I'm wondering if I >> can just revert this and keep the old requirement for now since this >> change seems to be related just to dri3 (which doesn't affect XQuartz >> anyways). >> >> -LIBGL="gl >= 7.1.0" >> +LIBGL="gl >= 9.2.0" > > This has nothing to do with DRI3. It has to do with floating point > configs for pbuffers in DRI2. Mesa 9.2 is required because that is the > version that adds __DRI_ATTRIB_FLOAT_BIT and > __DRI_ATTRIB_UNSIGNED_FLOAT_BIT to dri_interface.h. See Mesa commit > c37c367. > > If you'd like to submit a patch that will allow the server to gracefully > disable GLX_ARB_fbconfig_float when the version of dri_interface.h is > too old (or just stub it out for XQuartz), I'd be happy to review it.
Patch is OTW. It also fixes a bug in configure.ac in that the GLX section checks if DRI2 == "yes" before DRI2 == "auto" is resolved to "yes". --Jeremy
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