Patch by Magliocchetti Riccardo:

gtk frontend: require gtk 2.6 at configure time and removed
some compatibility code for older versions.

desmume/configure.ac

@@ -57,6 +57,7 @@ AC_CHECK_HEADERS([GL/glu.h])
 
 dnl - Check for GTK and/or libglade
 GLIB_VER=2.8
+GTK_VER=2.6
 AC_CHECK_TOOL(HAVE_PKG, pkg-config)
 AC_PROVIDE_IFELSE([PKG_PROG_PKG_CONFIG], [
   if test ! "x$HAVE_PKG" = "x" ; then
@@ -69,9 +70,12 @@ AC_PROVIDE_IFELSE([PKG_PROG_PKG_CONFIG], [
     fi
 
     PKG_CHECK_MODULES(GTK,
-                      "gtk+-2.0",
+                      gtk+-2.0 >= $GTK_VER,
                       HAVE_GTK=yes,
                       HAVE_GTK=no)
+    if test "$HAVE_GTK" = "no"; then
+      AC_MSG_ERROR([gtk-2.0 >= $GTK_VER is required to build desmume gtk frontend])
+    fi
     AC_SUBST(GTK_CFLAGS)
     AC_SUBST(GTK_LIBS)
 

desmume/src/gtk/main.cpp

@@ -1771,11 +1771,7 @@ common_gtk_main( struct configured_features *my_config)
 
 	pMenu = gtk_menu_new();
 
-#if ((GTK_MAJOR_VERSION >= 2) && (GTK_MINOR_VERSION >= 6))
 	pMenuItem = gtk_image_menu_item_new_from_stock(GTK_STOCK_ABOUT,NULL);
-#else
-	pMenuItem = gtk_menu_item_new_with_label("About");
-#endif
 	g_signal_connect(G_OBJECT(pMenuItem), "activate", G_CALLBACK(About), (GtkWidget*) pWindow);
 	gtk_menu_shell_append(GTK_MENU_SHELL(pMenu), pMenuItem);