docs: Add gtkx.h to the list of headers

diff --git a/docs/reference/gtk/migrating-2to3.xml b/docs/reference/gtk/migrating-2to3.xml
index c6be31ad84712e64cdeced0b3aab46dd7d84ea96..bb2aad539e575e2836fdab39f4729dc1ca7b196d 100644 (file)
--- a/docs/reference/gtk/migrating-2to3.xml
+++ b/docs/reference/gtk/migrating-2to3.xml
@@ -41,6 +41,10 @@
         <term><filename>gtk/gtk.h</filename></term>
         <listitem>for GTK</listitem>
       </varlistentry>
+      <varlistentry>
+        <term><filename>gtk/gtkx.h</filename></term>
+        <listitem>for the X-specfic widgets #GtkSocket and #GtkPlug</listitem>
+      </varlistentry>
       <varlistentry>
         <term><filename>gtk/gtkunixprint.h</filename></term>
         <listitem>for low-level, UNIX-specific printing functions</listitem>