diff -urN uim-1.8.1.orig/qt4/immodule/quiminputcontext.h uim-1.8.1/qt4/immodule/quiminputcontext.h
--- uim-1.8.1.orig/qt4/immodule/quiminputcontext.h	2012-07-02 12:16:36.306241316 +0800
+++ uim-1.8.1/qt4/immodule/quiminputcontext.h	2012-07-02 14:59:57.244712724 +0800
@@ -36,6 +36,7 @@
 #define UIM_QT4_IMMODULE_QUIMINPUTCONTEXT_H
 
 #include <QtGui/QInputContext>
+#include <QHash>
 
 #ifdef Q_WS_X11
 #define UIM_QT_USE_JAPANESE_KANA_KEYBOARD_HACK 1