diff -rupN Clementine-1.2.2.orig/src/core/utilities.cpp Clementine-1.2.2/src/core/utilities.cpp
--- Clementine-1.2.2.orig/src/core/utilities.cpp	2014-02-23 16:14:06.919406700 +0100
+++ Clementine-1.2.2/src/core/utilities.cpp	2014-02-23 16:16:12.107064900 +0100
@@ -50,6 +50,7 @@
 #endif
 
 #ifdef Q_OS_LINUX
+#  include <unistd.h>
 #  include <sys/syscall.h>
 #endif
 #ifdef Q_OS_DARWIN