diff -Nru hoichess-0.10.3/debian/changelog hoichess-0.10.3/debian/changelog
--- hoichess-0.10.3/debian/changelog	2011-10-13 20:11:01.000000000 +0000
+++ hoichess-0.10.3/debian/changelog	2012-05-20 21:57:19.000000000 +0000
@@ -1,3 +1,11 @@
+hoichess (0.10.3-6.1) unstable; urgency=low
+
+  [ Matthias Klose ]
+  * Non maintainer upload.
+  * Fix build failure with GCC 4.7. Closes: #667202.
+
+ -- Jonathan Wiltshire <jmw@debian.org>  Sun, 20 May 2012 22:57:15 +0100
+
 hoichess (0.10.3-6) unstable; urgency=low
 
   * Standards Version update to 3.9.2
diff -Nru hoichess-0.10.3/debian/patches/05-ftbfs-gcc-4.7 hoichess-0.10.3/debian/patches/05-ftbfs-gcc-4.7
--- hoichess-0.10.3/debian/patches/05-ftbfs-gcc-4.7	1970-01-01 00:00:00.000000000 +0000
+++ hoichess-0.10.3/debian/patches/05-ftbfs-gcc-4.7	2012-05-20 21:57:58.000000000 +0000
@@ -0,0 +1,20 @@
+--- hoichess-0.10.3.orig/src/main.cc
++++ hoichess-0.10.3/src/main.cc
+@@ -28,6 +28,7 @@
+ #endif
+ #include <stdio.h>
+ #include <stdlib.h>
++#include <unistd.h>
+ 
+ #include "common.h"
+ #include "compile.h"
+--- hoichess-0.10.3.orig/src/shell.cc
++++ hoichess-0.10.3/src/shell.cc
+@@ -27,6 +27,7 @@
+ #include "shell.h"
+ 
+ #include <errno.h> 
++#include <unistd.h> 
+ #ifdef HAVE_READLINE
+ # include <readline/readline.h>
+ # include <readline/history.h>
diff -Nru hoichess-0.10.3/debian/patches/series hoichess-0.10.3/debian/patches/series
--- hoichess-0.10.3/debian/patches/series	2011-10-13 19:27:10.000000000 +0000
+++ hoichess-0.10.3/debian/patches/series	2012-05-20 21:57:54.000000000 +0000
@@ -2,3 +2,4 @@
 02-Makefile.local
 03-config.h
 04-debug_printconfig.h
+05-ftbfs-gcc-4.7