Bug#672086: add patch

[Matthias Klose]

tags 672086 + patch
thanks

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diff -u libsfml-1.6+dfsg1/debian/changelog libsfml-1.6+dfsg1/debian/changelog
--- libsfml-1.6+dfsg1/debian/changelog
+++ libsfml-1.6+dfsg1/debian/changelog
@@ -1,3 +1,10 @@
+libsfml (1.6+dfsg1-2.2) unstable; urgency=low
+
+  * Non-maintainer upload.
+  * Fix build failure with GCC 4.7. Closes: #672086.
+
+ -- Matthias Klose <doko at debian.org>  Tue, 08 May 2012 22:54:35 +0000
+
 libsfml (1.6+dfsg1-2.1) unstable; urgency=low
 
   * Non-maintainer upload.
diff -u libsfml-1.6+dfsg1/debian/patches/series libsfml-1.6+dfsg1/debian/patches/series
--- libsfml-1.6+dfsg1/debian/patches/series
+++ libsfml-1.6+dfsg1/debian/patches/series
@@ -6,0 +7 @@
+debian/gcc-4.7.diff
only in patch2:
unchanged:
--- libsfml-1.6+dfsg1.orig/debian/patches/debian/gcc-4.7.diff
+++ libsfml-1.6+dfsg1/debian/patches/debian/gcc-4.7.diff
@@ -0,0 +1,12 @@
+Index: libsfml-1.6+dfsg1/src/SFML/Window/Linux/Joystick.cpp
+===================================================================
+--- libsfml-1.6+dfsg1.orig/src/SFML/Window/Linux/Joystick.cpp	2010-01-27 14:00:27.000000000 +0000
++++ libsfml-1.6+dfsg1/src/SFML/Window/Linux/Joystick.cpp	2012-05-08 22:59:40.098386041 +0000
+@@ -27,6 +27,7 @@
+ ////////////////////////////////////////////////////////////
+ #include <SFML/Window/Joystick.hpp>
+ #include <sstream>
++#include <unistd.h>
+ 
+ 
+ namespace sf