diff -Naur merkaartor-0.17.2.orig/3rdparty/qtsingleapplication-2.6_1-opensource/src/qtlocalpeer.cpp merkaartor-0.17.2/3rdparty/qtsingleapplication-2.6_1-opensource/src/qtlocalpeer.cpp --- merkaartor-0.17.2.orig/3rdparty/qtsingleapplication-2.6_1-opensource/src/qtlocalpeer.cpp 2011-02-10 13:00:35.000000000 +0100 +++ merkaartor-0.17.2/3rdparty/qtsingleapplication-2.6_1-opensource/src/qtlocalpeer.cpp 2012-09-19 14:26:39.538277883 +0200 @@ -57,6 +57,7 @@ #endif #if defined(Q_OS_UNIX) #include <time.h> +#include <unistd.h> #endif namespace QtLP_Private {