commit 5900b14a2bf367203f6d417bc51b59ab5ecc2129
Author: Raphael Kubo da Costa <rakuco@FreeBSD.org>
Date:   Sun Mar 2 13:26:18 2014 +0200

    qt4 immodule: Add missing <clocale> include.
    
    * qt4/immodule/plugin.cpp
      - Stop relying on implicit includes that may not always work and
        explicitly include <clocale> for the setlocale(3) call.

--- qt4/immodule/plugin.cpp.orig	2017-08-14 00:07:27 UTC
+++ qt4/immodule/plugin.cpp
@@ -36,6 +36,8 @@
 
 #include <clocale>
 
+#include <clocale>
+
 #include <QtCore/QStringList>
 #if QT_VERSION < 0x050000
 # ifdef Q_WS_X11