[gtk+] build: Drop --without-atk-bridge option

[Colin Walters <walters src gnome org>]

commit ed8203e700aa8a8de40df071ffdc2d18cab68e29
Author: Colin Walters <walters verbum org>
Date:   Tue Jun 26 09:41:33 2012 -0400

    build: Drop --without-atk-bridge option
    
    Instead, always build it if and only if X11.  This reduces the set of
    supported configurations.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=677491

 configure.ac    |    7 +------
 gtk/a11y/gail.c |    4 ++--
 2 files changed, 3 insertions(+), 8 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d4c2262..37b6349 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1281,13 +1281,8 @@ AC_SUBST(GDK_DEP_CFLAGS)
 # Check for Accessibility Toolkit flags
 ########################################
 
-AC_ARG_WITH(atk-bridge,
-	    AS_HELP_STRING([--without-atk-bridge], [Do not use atk-bridge-2.0]),
-	    :, with_atk_bridge=$enable_x11_backend)
-
-if test x$with_atk_bridge != xno; then
+if test x$enable_x11_backend = xyes; then
    ATK_PACKAGES="atk atk-bridge-2.0"
-   AC_DEFINE([HAVE_ATK_BRIDGE], [1], [Define if we're using atk-bridge-2.0])
 else
    ATK_PACKAGES="atk"
 fi
diff --git a/gtk/a11y/gail.c b/gtk/a11y/gail.c
index 4f5028b..ff8450a 100644
--- a/gtk/a11y/gail.c
+++ b/gtk/a11y/gail.c
@@ -33,7 +33,7 @@
 #include "gailutil.h"
 #include "gailmisc.h"
 
-#ifdef HAVE_ATK_BRIDGE
+#ifdef GDK_WINDOWING_X11
 #include <atk-bridge.h>
 #endif
 
@@ -809,7 +809,7 @@ _gtk_accessibility_init (void)
   focus_tracker_id = atk_add_focus_tracker (gail_focus_tracker);
 
   _gail_util_install ();
-#ifdef HAVE_ATK_BRIDGE
+#ifdef GDK_WINDOWING_X11
   atk_bridge_adaptor_init (NULL, NULL);
 #endif