Re: pkg/50172: modular-xorg needs some glamor

[David Shao <davshao%gmail.com@localhost>]

The following reply was made to PR pkg/50172; it has been noted by GNATS.

From: David Shao <davshao%gmail.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: pkg/50172: modular-xorg needs some glamor
Date: Mon, 7 Sep 2015 22:05:53 -0700

 On Mon, Aug 31, 2015 at 1:30 PM, Tobias Nygren <tnn%netbsd.org@localhost> wrote:
 > The following reply was made to PR pkg/50172; it has been noted by GNATS.
 >
 > From: Tobias Nygren <tnn%NetBSD.org@localhost>
 > To: davshao%gmail.com@localhost
 > Cc: gnats-bugs%NetBSD.org@localhost
 > Subject: Re: pkg/50172: modular-xorg needs some glamor
 > Date: Mon, 31 Aug 2015 22:25:16 +0200
 >
 >  On Wed, 26 Aug 2015 05:05:00 +0000 (UTC)
 >  davshao%gmail.com@localhost wrote:
 >
 >  > Might as well update to MesaLib 10.6.5 as the 10.5 series probably received its last update in July.  There are no patches needed to be added, just a couple to subtract that have been incorporated into the code.
 >
 >  Agreed. But I think I will instead hold this until Mesa 11 proper
 >  lands. It is due in less than two weeks. I have hardware that should be
 >  glamor capable, will try to get it going on NetBSD.
 >
 
 I would advise against this.  My understanding is that the freeze for
 the next version of pkgsrc is about to begin within days.  MesaLib
 10.6.x seems to have essentially been a bugfix branch known to be
 compatible with 10.5.x systems.  Therefore I would anticipate that
 there will be further bugfix updates to 10.6.x through much of the
 lifetime of the next pkgsrc branch, perfect for stability, while there
 would be no further updates to 10.5.x.  Also some new features of Mesa
 11 require an update to libLLVM 3.7.  And Mesa 11 would be a less
 stable development branch.
 
 Also I do not believe the NetBSD problems with glamor have anything to
 do with the version of MesaLib; instead, they are known problems with
 NetBSD as indicated in MesaLib's options.mk:
 
 # (EE) Failed to load /usr/pkg/lib/xorg/modules/extensions/libglx.so:
 # /usr/pkg/lib/libGL.so.1: Use of initialized Thread Local Storage
 with model initial-exec and dlopen is not supported
 CONFIGURE_ARGS+=    --disable-glx-tls
 
 I would think it would be far easier to debug this problem with a
 known stable branch and not simultaneously be trying to figure out
 what might have changed with Mesa 11.
 
 It seems to me that working on Mesa 11 and libLLVM 3.7 is suited more
 for pkgsrc-wip.