[PATCH]: ioport.cpp: close(2) needs unistd.h

Fixed in upstream CVS:
http://linknx.cvs.sourceforge.net/viewvc/linknx/linknx/linknx/src/ioport.cpp?revision=1.20&view=markup

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 src/ioport.cpp |    1 +
 1 file changed, 1 insertion(+)

Index: linknx-0.0.1.30/src/ioport.cpp
===================================================================
--- linknx-0.0.1.30.orig/src/ioport.cpp
+++ linknx-0.0.1.30/src/ioport.cpp
@@ -21,6 +21,7 @@
 #include <iomanip>
 #include "ioport.h"
 #include <fcntl.h>
+#include <unistd.h>
 
 Logger& IOPort::logger_m(Logger::getInstance("IOPort"));
 Logger& RxThread::logger_m(Logger::getInstance("RxThread"));