diff -up mozilla-1.9.2/configure.in.gdk-pixbuf mozilla-1.9.2/configure.in
--- mozilla-1.9.2/configure.in.gdk-pixbuf	2010-07-13 21:10:45.000000000 +0200
+++ mozilla-1.9.2/configure.in	2010-08-03 15:38:43.113733420 +0200
@@ -5354,7 +5354,10 @@ then
     then
         if test "$MOZ_ENABLE_LIBNOTIFY"
         then
-            PKG_CHECK_MODULES(MOZ_LIBNOTIFY, libnotify >= $LIBNOTIFY_VERSION)
+            dnl Code which requires gdk-pixbuf is only in
+            dnl toolkit/system/gnome/nsAlertsIconListener.cpp and is compiled
+            dnl only when libnotify is enabled
+            PKG_CHECK_MODULES(MOZ_LIBNOTIFY, libnotify >= $LIBNOTIFY_VERSION gdk-pixbuf-2.0 gtk+-2.0)
         fi
     fi
 fi