gnu: xf86-video-ast: Add patch needed for upcoming xorg-server update.

* gnu/packages/patches/xf86-video-ast-remove-mibstore.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/xorg.scm (xf86-video-ast): Add patch.
  Use modular xorg source URI.

gnu-system.am

@@ -459,6 +459,7 @@ dist_patch_DATA =						\
   gnu/packages/patches/w3m-fix-compile.patch			\
   gnu/packages/patches/wmctrl-64-fix.patch			\
   gnu/packages/patches/xf86-video-ark-remove-mibstore.patch	\
+  gnu/packages/patches/xf86-video-ast-remove-mibstore.patch	\
   gnu/packages/patches/xf86-video-geode-glibc-2.20.patch	\
   gnu/packages/patches/xf86-video-openchrome-includes.patch	\
   gnu/packages/patches/xfce4-panel-plugins.patch		\

gnu/packages/patches/xf86-video-ast-remove-mibstore.patch

@@ -0,0 +1,90 @@
+Removes references to mibstore.h and miInitializeBackingStore, which
+have been removed from xorg-server.  Zack Rusin <zackr@vmware.com>
+wrote: "It was a noop for at least 5 years and it has been removed."
+See: http://patches.openembedded.org/patch/46133/
+
+diff -ru xf86-video-ast-0.93.10.orig/src/ast_2dtool.c xf86-video-ast-0.93.10/src/ast_2dtool.c
+--- xf86-video-ast-0.93.10.orig/src/ast_2dtool.c	2012-03-23 21:40:56.000000000 -0400
++++ xf86-video-ast-0.93.10/src/ast_2dtool.c	2014-12-19 02:42:32.422383728 -0500
+@@ -27,7 +27,6 @@
+ #include "xf86_OSproc.h"
+ #include "xf86cmap.h"
+ #include "compiler.h"
+-#include "mibstore.h"
+ #include "vgaHW.h"
+ #include "mipointer.h"
+ #include "micmap.h"
+diff -ru xf86-video-ast-0.93.10.orig/src/ast_accel.c xf86-video-ast-0.93.10/src/ast_accel.c
+--- xf86-video-ast-0.93.10.orig/src/ast_accel.c	2012-03-23 21:40:56.000000000 -0400
++++ xf86-video-ast-0.93.10/src/ast_accel.c	2014-12-19 02:41:55.534200809 -0500
+@@ -27,7 +27,6 @@
+ #include "xf86_OSproc.h"
+ #include "xf86cmap.h"
+ #include "compiler.h"
+-#include "mibstore.h"
+ #include "vgaHW.h"
+ #include "mipointer.h"
+ #include "micmap.h"
+diff -ru xf86-video-ast-0.93.10.orig/src/ast_cursor.c xf86-video-ast-0.93.10/src/ast_cursor.c
+--- xf86-video-ast-0.93.10.orig/src/ast_cursor.c	2012-03-23 21:40:56.000000000 -0400
++++ xf86-video-ast-0.93.10/src/ast_cursor.c	2014-12-19 02:42:37.258407708 -0500
+@@ -27,7 +27,6 @@
+ #include "xf86_OSproc.h"
+ #include "xf86cmap.h"
+ #include "compiler.h"
+-#include "mibstore.h"
+ #include "vgaHW.h"
+ #include "mipointer.h"
+ #include "micmap.h"
+diff -ru xf86-video-ast-0.93.10.orig/src/ast_driver.c xf86-video-ast-0.93.10/src/ast_driver.c
+--- xf86-video-ast-0.93.10.orig/src/ast_driver.c	2012-03-23 21:40:56.000000000 -0400
++++ xf86-video-ast-0.93.10/src/ast_driver.c	2014-12-19 02:42:50.710474414 -0500
+@@ -31,7 +31,6 @@
+ #endif
+ #include "xf86cmap.h"
+ #include "compiler.h"
+-#include "mibstore.h"
+ #include "vgaHW.h"
+ #include "mipointer.h"
+ #include "micmap.h"
+@@ -865,7 +864,6 @@
+    }
+ #endif /* end of Accel_2D */
+      
+-   miInitializeBackingStore(pScreen);
+    xf86SetBackingStore(pScreen);
+    xf86SetSilkenMouse(pScreen);
+ 
+diff -ru xf86-video-ast-0.93.10.orig/src/ast_mode.c xf86-video-ast-0.93.10/src/ast_mode.c
+--- xf86-video-ast-0.93.10.orig/src/ast_mode.c	2012-03-23 21:40:56.000000000 -0400
++++ xf86-video-ast-0.93.10/src/ast_mode.c	2014-12-19 02:42:24.894346398 -0500
+@@ -27,7 +27,6 @@
+ #include "xf86_OSproc.h"
+ #include "xf86cmap.h"
+ #include "compiler.h"
+-#include "mibstore.h"
+ #include "vgaHW.h"
+ #include "mipointer.h"
+ #include "micmap.h"
+diff -ru xf86-video-ast-0.93.10.orig/src/ast_tool.c xf86-video-ast-0.93.10/src/ast_tool.c
+--- xf86-video-ast-0.93.10.orig/src/ast_tool.c	2012-03-23 21:40:56.000000000 -0400
++++ xf86-video-ast-0.93.10/src/ast_tool.c	2014-12-19 02:42:03.930242443 -0500
+@@ -27,7 +27,6 @@
+ #include "xf86_OSproc.h"
+ #include "xf86cmap.h"
+ #include "compiler.h"
+-#include "mibstore.h"
+ #include "vgaHW.h"
+ #include "mipointer.h"
+ #include "micmap.h"
+diff -ru xf86-video-ast-0.93.10.orig/src/ast_vgatool.c xf86-video-ast-0.93.10/src/ast_vgatool.c
+--- xf86-video-ast-0.93.10.orig/src/ast_vgatool.c	2012-03-23 21:40:56.000000000 -0400
++++ xf86-video-ast-0.93.10/src/ast_vgatool.c	2014-12-19 02:42:18.406314226 -0500
+@@ -27,7 +27,6 @@
+ #include "xf86_OSproc.h"
+ #include "xf86cmap.h"
+ #include "compiler.h"
+-#include "mibstore.h"
+ #include "vgaHW.h"
+ #include "mipointer.h"
+ #include "micmap.h"

gnu/packages/xorg.scm

@@ -2389,12 +2389,13 @@ devices, thus making direct access unnecessary.")
       (origin
         (method url-fetch)
         (uri (string-append
-               "mirror://xorg/X11R7.7/src/everything/xf86-video-ast-"
+               "mirror://xorg/individual/driver/xf86-video-ast-"
                version
                ".tar.bz2"))
         (sha256
           (base32
-            "1q64z8qqa0ix3cymqiwk1s3sphd1fvvz30lvyxhgkgciygz6dm69"))))
+           "1q64z8qqa0ix3cymqiwk1s3sphd1fvvz30lvyxhgkgciygz6dm69"))
+        (patches (list (search-patch "xf86-video-ast-remove-mibstore.patch")))))
     (build-system gnu-build-system)
     (inputs `(("xorg-server" ,xorg-server)))
     (native-inputs `(("pkg-config" ,pkg-config)))