hack to fix GLX_MESA_copy_sub_buffer regression (#1265395)

0001-glx-fix-regression-with-copy-sub-buffer-disappearing.patch

@@ -0,0 +1,42 @@
+From cfe51b7b536cf9f46e26cae97d9560c8c4264009 Mon Sep 17 00:00:00 2001
+From: Fedora X Ninjas <x@fedoraproject.org>
+Date: Tue, 22 Sep 2015 20:20:04 -0400
+Subject: [PATCH] glx: fix regression with copy sub buffer disappearing
+
+So copy sub buffer isn't a core extensions it's a driver extension
+which means we are using totally the wrong interface to query for it
+here, which means bad things happen when you roll out this code,
+for instance MESA_copy_sub_buffer stops working.
+
+This is just the hack I'm sticking in Fedora to avoid the regression
+for now, but hopefully will inspire us.
+---
+ glx/glxdriswrast.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/glx/glxdriswrast.c b/glx/glxdriswrast.c
+index 9add2a1..e8e53bf 100644
+--- a/glx/glxdriswrast.c
++++ b/glx/glxdriswrast.c
+@@ -396,6 +396,9 @@ initializeExtensions(__GLXDRIscreen * screen)
+     const __DRIextension **extensions;
+     int i;
+ 
++    __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_copy_sub_buffer");
++    LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n");
++
+     if (screen->swrast->base.version >= 3) {
+         __glXEnableExtension(screen->glx_enable_bits,
+                              "GLX_ARB_create_context");
+@@ -416,8 +419,6 @@ initializeExtensions(__GLXDRIscreen * screen)
+         if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0) {
+             screen->copySubBuffer =
+                 (const __DRIcopySubBufferExtension *) extensions[i];
+-            __glXEnableExtension(screen->glx_enable_bits,
+-                                 "GLX_MESA_copy_sub_buffer");
+         }
+ 
+         if (strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0) {
+-- 
+2.5.0
+

xorg-x11-server.spec

@@ -45,7 +45,7 @@
 Summary:   X.Org X11 X server
 Name:      xorg-x11-server
 Version:   1.18.0
-Release:   0.2%{?gitdate:.%{gitdate}}%{dist}
+Release:   0.3%{?gitdate:.%{gitdate}}%{dist}
 URL:       http://www.x.org
 License:   MIT
 Group:     User Interface/X
@@ -77,6 +77,9 @@ Source31: xserver-sdk-abi-requires.git
 # maintainer convenience script
 Source40: driver-abi-rebuild.sh
 
+# hack that isn't upstream - hopefully upstream fixes nicer
+Patch3000: 0001-glx-fix-regression-with-copy-sub-buffer-disappearing.patch
+
 Patch4000: 0001-fix-Xdmx-link-harder.patch
 # Trivial things to never merge upstream ever:
 # This really could be done prettier.
@@ -631,6 +634,9 @@ find %{inst_srcdir}/hw/xfree86 -name \*.c -delete
 
 
 %changelog
+* Tue Sep 22 2015 Dave Airlie <airlied@redhat.com> 1.18.0-0.3
+- hack to fix GLX_MESA_copy_sub_buffer regression (#1265395)
+
 * Mon Sep 07 2015 Dave Airlie <airlied@redhat.com> 1.18.0-0.2
 - update to git snapshot of 1.7.99 (1.18.0 rc1)