Use GDK_WINDOWING_X11 to check for X backend support

Checking for gtkx.h does not work as intended, as this header is available
even if there's no X backend.

2 files changed, 4 insertions, 4 deletions

diff --git a/src/lib/eventloop.c b/src/lib/eventloop.c
index d3aef7e7..d7182339 100644
--- a/src/lib/eventloop.c
+++ b/src/lib/eventloop.c
@@ -181,7 +181,7 @@ GtkWidget *
 GNUNET_GTK_plug_me (const char *env_name,
                     GtkWidget *main_window)
 {
-#if HAVE_GTK_GTKX_H
+#if GDK_WINDOWING_X11
   const char *plugid;
   GtkWidget *plug;
   GtkWidget *child;
diff --git a/src/main/gnunet-gtk.c b/src/main/gnunet-gtk.c
index 542edc7d..cc6c3c48 100644
--- a/src/main/gnunet-gtk.c
+++ b/src/main/gnunet-gtk.c
@@ -24,7 +24,7 @@
  * @brief Gtk user interface for GNUnet
  */
 #include "gnunet_gtk.h"
-#if HAVE_GTK_GTKX_H
+#ifdef GDK_WINDOWING_X11
 #include <gtk/gtkx.h>
 #endif
 
@@ -170,7 +170,7 @@ gnunet_gtk_quit_cb (GObject * object,
 }
 
 
-#if HAVE_GTK_GTKX_H
+#ifdef GDK_WINDOWING_X11
 /**
  * Start the child process for the plug.
  *
@@ -298,7 +298,7 @@ run (void *cls,
   main_window = GTK_WIDGET (get_object ("gnunet_gtk_window"));
   GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
                                 &cleanup_task, NULL);
-#if HAVE_GTK_GTKX_H
+#ifdef GDK_WINDOWING_X11
   plug ("gnunet_statistics_hbox",
         "gnunet-statistics-gtk",
         "GNUNET_STATISTICS_GTK_PLUG");