--- include/dbus-c++/pipe.h	2011-11-28 16:03:19.000000000 +0100
+++ include/dbus-c++/pipe.h	2015-12-20 11:28:15.238535382 +0100
@@ -29,6 +29,8 @@
 
 /* STD */
 #include <cstdlib>
+/* ssize_t */
+#include <fcntl.h>
 
 namespace DBus
 {