[gnome-shell] Improve checks for XFixes pointer barriers

[Owen Taylor <otaylor src gnome org>]

commit fc49fb2f4f3f1059e0bb63271ad7509275eba2d1
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Thu Mar 24 12:04:43 2011 -0400

    Improve checks for XFixes pointer barriers
    
    Instead of checking on version (which doesn't work when protocol
    and libraries are out of sync), just check for the functions we
    need.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=645630

 configure.ac       |    8 ++++----
 src/shell-global.c |    4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 0c61787..1b61101 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,8 +52,8 @@ AC_MSG_CHECKING([for GStreamer (needed for recording functionality)])
 if $PKG_CONFIG --exists gstreamer-0.10 '>=' $GSTREAMER_MIN_VERSION ; then
    AC_MSG_RESULT(yes)
    build_recorder=true
-   recorder_modules="gstreamer-0.10 gstreamer-base-0.10 xfixes x11"
-   PKG_CHECK_MODULES(TEST_SHELL_RECORDER, $recorder_modules clutter-1.0)
+   recorder_modules="gstreamer-0.10 gstreamer-base-0.10 x11"
+   PKG_CHECK_MODULES(TEST_SHELL_RECORDER, $recorder_modules clutter-1.0 xfixes)
 else
    AC_MSG_RESULT(no)
 fi
@@ -89,7 +89,7 @@ PKG_CHECK_MODULES(GNOME_SHELL, gio-2.0 >= $GIO_MIN_VERSION
 			       libcanberra
                                telepathy-glib >= $TELEPATHY_GLIB_MIN_VERSION
                                telepathy-logger-0.2 >= $TELEPATHY_LOGGER_MIN_VERSION
-                               polkit-agent-1 >= $POLKIT_MIN_VERSION)
+                               polkit-agent-1 >= $POLKIT_MIN_VERSION xfixes)
 
 PKG_CHECK_MODULES(SHELL_PERF_HELPER, gtk+-3.0 gio-2.0)
 
@@ -112,7 +112,7 @@ saved_LIBS=$LIBS
 CFLAGS=$GNOME_SHELL_CFLAGS
 LIBS=$GNOME_SHELL_LIBS
 # sn_startup_sequence_get_application_id, we can replace with a version check later
-AC_CHECK_FUNCS(JS_NewGlobalObject sn_startup_sequence_get_application_id)
+AC_CHECK_FUNCS(JS_NewGlobalObject sn_startup_sequence_get_application_id XFixesCreatePointerBarrier)
 CFLAGS=$saved_CFLAGS
 LIBS=$saved_LIBS
 
diff --git a/src/shell-global.c b/src/shell-global.c
index dcedf43..2123e8a 100644
--- a/src/shell-global.c
+++ b/src/shell-global.c
@@ -902,7 +902,7 @@ shell_global_create_pointer_barrier (ShellGlobal *global,
                                      int x1, int y1, int x2, int y2,
                                      int directions)
 {
-#if XFIXES_MAJOR >= 5
+#if HAVE_XFIXESCREATEPOINTERBARRIER
   Display *xdpy;
 
   xdpy = meta_plugin_get_xdisplay (global->plugin);
@@ -928,7 +928,7 @@ shell_global_create_pointer_barrier (ShellGlobal *global,
 void
 shell_global_destroy_pointer_barrier (ShellGlobal *global, guint32 barrier)
 {
-#if XFIXES_MAJOR >= 5
+#if HAVE_XFIXESCREATEPOINTERBARRIER
   Display *xdpy;
 
   g_return_if_fail (barrier > 0);