--- input/linux/inputthread.cpp.orig	2012-08-02 14:56:39.000000000 +0800
+++ input/linux/inputthread.cpp	2012-08-02 14:56:52.000000000 +0800
@@ -33,6 +33,7 @@
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <unistd.h>
 #include <linux/input.h>
 
 #define BITS_PER_LONG (sizeof(long) * 8)
--- input/linux/detectlinux.cpp.gcc	2012-08-02 15:02:33.000000000 +0800
+++ input/linux/detectlinux.cpp	2012-08-02 15:02:42.000000000 +0800
@@ -27,6 +27,7 @@
 #include <QtCore/QDir>
 #include <QtCore/QCoreApplication>
 #include <QtCore/QDebug>
+#include <unistd.h>
 
 // #include <libudev.h>