--- balsa-2.4.9/configure.in~   2010-11-18 23:18:23.000000000 +0100
+++ balsa-2.4.9/configure.in    2011-04-07 21:27:32.583333339 +0200
@@ -124,10 +124,10 @@
                   [with_gss=$withval],[with_gss=no])

 AC_ARG_WITH(html-widget,
-            AC_HELP_STRING([--with-html-widget=(no|gtkhtml2|gtkhtml3|webkit)],
-                           [select the HTML renderer (default gtkhtml3)]),
+            AC_HELP_STRING([--with-html-widget=(no|gtkhtml2|gtkhtml4|webkit)],
+                           [select the HTML renderer (default gtkhtml4)]),
             [use_html_widget=$withval],
-            [use_html_widget=gtkhtml3])
+            [use_html_widget=gtkhtml4])

 AC_ARG_WITH([gtksourceview],
    AC_HELP_STRING([--with-gtksourceview],
@@ -380,10 +380,13 @@
         PKG_CHECK_MODULES(HTML, [ libgtkhtml-2.0 ])
         AC_DEFINE(HAVE_GTKHTML2,1,[Defined when GtkHtml-2 can be used.])
     ;;
-    gtkhtml3)
+    gtkhtml4)
         AC_MSG_RESULT([$use_html_widget])
-        PKG_CHECK_MODULES(HTML, [ libgtkhtml-3.14 ])
-        AC_DEFINE(HAVE_GTKHTML3,1,[Defined when GtkHtml-3 can be used.])
+       PKG_CHECK_MODULES(HTML, [ libgtkhtml-4.0 ], [],
+       [PKG_CHECK_MODULES(HTML, [ libgtkhtml-4.0 ],[],
+       [AC_MSG_ERROR([*** You enabled gtkhtml4 but it was not
+       found.])])])
+       AC_DEFINE(HAVE_GTKHTML4,1,[Defined when GtkHtml-4 can be used.])
     ;;
     webkit)
         AC_MSG_RESULT([$use_html_widget])
--- balsa-2.4.9/libbalsa/html.c~	2010-11-18 21:55:32.000000000 +0100
+++ balsa-2.4.9/libbalsa/html.c	2011-04-07 17:55:00.813390756 +0200
@@ -23,13 +23,13 @@
 /*
  * Support for HTML mail parts.
  *
- * Balsa supports three HTML engines: GtkHtml-2, GtkHTML-3, and WebKit.
+ * Balsa supports three HTML engines: GtkHtml-2, GtkHTML-4, and WebKit.
  * The symbol HAVE_HTML_WIDGET is defined if HTML support is requested at
  * configure time, and the requested engine is available.
  *
  * This file contains all code that depends on which widget is being
  * used. Elsewhere, HTML support code should be conditional on
- * HAVE_HTML_WIDGET, but none of HAVE_GTKHTML2, HAVE_GTKHTML3, or
+ * HAVE_HTML_WIDGET, but none of HAVE_GTKHTML2, HAVE_GTKHTML4, or
  * HAVE_WEBKIT should be referenced outside this file.
  *
  * As of this writing (2010-01), WebKit offers the most complete API,
@@ -731,23 +731,9 @@
         (*info->hover_cb) (uri);
 }
 
-static void
-lbh_size_request_cb(GtkWidget      * widget,
-                    GtkRequisition * requisition,
-                    gpointer         data)
-{
-    GtkLayout *layout = GTK_LAYOUT(widget);
-    GtkAdjustment *adjustment;
-
-    adjustment = gtk_layout_get_hadjustment(layout);
-    requisition->width = gtk_adjustment_get_upper(adjustment);
-    adjustment = gtk_layout_get_vadjustment(layout);
-    requisition->height = gtk_adjustment_get_upper(adjustment);
-}
-
-# ifdef HAVE_GTKHTML3
+# ifdef HAVE_GTKHTML4
 
-/* Code for GtkHTML-3 */
+/* Code for GtkHTML-4 */
 
 #  include <gtkhtml/gtkhtml.h>
 #  include <gtkhtml/gtkhtml-stream.h>
@@ -870,9 +856,6 @@
                      G_CALLBACK(libbalsa_html_url_requested),
                      body->message);
 
-    g_signal_connect(widget, "size-request",
-                     G_CALLBACK(lbh_size_request_cb), info);
-
     return widget;
 }
 
@@ -974,7 +957,7 @@
     g_object_unref(operation);
 }
 
-# else				/* HAVE_GTKHTML3 */
+# else				/* HAVE_GTKHTML4 */
 
 /* Code for GtkHtml-2 */
 
@@ -993,6 +976,19 @@
     html_stream_close(stream);
 }
 
+static void
+lbh_size_request_cb(GtkWidget * widget
+ GtkRequisition * requisition,
+ gpointer data)
+{
+ GtkAdjustment *hadjustment, *vadjustment;
+
+ g_object_get(G_OBJECT(widget), "hadjustment", &hadjustment,
+ "vadjustment", &vadjustment, NULL);
+ requisition->width = gtk_adjustment_get_upper(hadjustment);
+ requisition->height = gtk_adjustment_get_upper(vadjustment);
+}
+
 /* Create a new HtmlView widget:
  * text			the HTML source;
  * len			length of text;
@@ -1130,7 +1126,7 @@
 {
 }
 
-# endif				/* HAVE_GTKHTML3 */
+# endif				/* HAVE_GTKHTML4 */
 
 /* Common code for both widgets. */