--- processwrapper.cc~	2010-12-03 22:12:46.000000000 +0100
+++ processwrapper.cc	2012-07-17 13:52:14.418257186 +0200
@@ -93,6 +93,7 @@
 }
 
 #else
+#include <unistd.h>
 
 unsigned int ProcessWrapper::currentProcessId()
 {
--- qtsingleapplication/src/qtlocalpeer.cpp~	2010-12-03 22:12:46.000000000 +0100
+++ qtsingleapplication/src/qtlocalpeer.cpp	2012-07-17 13:41:32.121556924 +0200
@@ -50,6 +50,7 @@
 #endif
 #if defined(Q_OS_UNIX)
 #include <time.h>
+#include <unistd.h>
 #endif
 
 namespace QtLP_Private {