diff -aur tora-2.1.3/src/toextract.h tora-2.1.3patched/src/toextract.h
--- tora-2.1.3/src/toextract.h	2010-02-02 10:25:43.000000000 -0800
+++ tora-2.1.3patched/src/toextract.h	2012-06-22 21:58:45.026286147 -0700
@@ -53,6 +53,7 @@
 #include <qvariant.h>
 //Added by qt3to4:
 #include <QString>
+#include <unistd.h>
 
 class QWidget;
 class toConnection;