Only in 2.0.1_1/qlipper-2.0.1: qlipper2.pro.user
diff -ru qlipper-2.0.1/qtsingleapplication/qtlocalpeer.cpp 2.0.1_1/qlipper-2.0.1/qtsingleapplication/qtlocalpeer.cpp
--- qlipper-2.0.1/qtsingleapplication/qtlocalpeer.cpp	2012-06-11 06:47:31.000000000 -0500
+++ 2.0.1_1/qlipper-2.0.1/qtsingleapplication/qtlocalpeer.cpp	2012-06-11 14:08:55.000000000 -0500
@@ -50,6 +50,7 @@
 #endif
 #if defined(Q_OS_UNIX)
 #include <time.h>
+#include <unistd.h>
 #endif
 
 namespace QtLP_Private {