Description: Fix FTBFS with gcc 4.7 by fixing missing <unistd.h> includes.
Author: Cyril Brulebois <kibi@debian.org>
Bug-Debian: http://bugs.debian.org/667116

--- a/Source/main.cpp
+++ b/Source/main.cpp
@@ -24,6 +24,7 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIG
 #include <stdlib.h>
 #include <sstream>
 #include <stdexcept>
+#include <unistd.h>
 
 using namespace std;
 using namespace blahtex;
--- a/Source/mainPng.cpp
+++ b/Source/mainPng.cpp
@@ -27,6 +27,7 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIG
 #include <stdio.h>
 #include <stdlib.h>
 #include <sstream>
+#include <unistd.h>
 
 
 using namespace std;