File libvpd2-gcc47.patch of Package libvpd2

Index: libvpd-2.2.0/src/helper_functions.cpp
===================================================================
--- libvpd-2.2.0.orig/src/helper_functions.cpp
+++ libvpd-2.2.0/src/helper_functions.cpp
@@ -27,6 +27,7 @@
 #include <cstdlib>
 #include <cstring>
 #include <fstream>
+#include <unistd.h>
 
 
 #define BUF_SIZE 512