--- kde/window-decorator-kde4/window.cpp	2010-05-21 11:18:14.000000000 +0000
+++ kde/window-decorator-kde4/window.cpp	2012-09-12 18:05:00.000000000 +0000
@@ -59,6 +59,9 @@
 
 #include "paintredirector.h"
 
+// header for gcc-4.7 compatibility
+#include "unistd.h"
+
 KWD::Window::Window (WId  parentId,
 		     WId  clientId,
 		     WId  frame,
--- configure.ac.orig	2012-09-12 23:39:54.093812000 +0400
+++ configure.ac	2012-09-12 23:40:37.253686000 +0400
@@ -72,11 +72,6 @@
   *) CFLAGS="$CFLAGS -Wnested-externs" ;;
   esac
 
-  case " $CFLAGS " in
-  *[[\ \	]]-D_FORTIFY_SOURCE=2[[\ \	]]*) ;;
-  *) CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2" ;;
-  esac
-
   if test "x$enable_ansi" = "xyes"; then
     case " $CFLAGS " in
     *[[\ \	]]-ansi[[\ \	]]*) ;;
@@ -95,11 +90,6 @@
   *[[\ \	]]-Wall[[\ \	]]*) ;;
   *) CXXFLAGS="$CXXFLAGS -Wall" ;;
   esac
-
-  case " $CXXFLAGS " in
-  *[[\ \	]]-D_FORTIFY_SOURCE=2[[\ \	]]*) ;;
-  *) CXXFLAGS="$CXXFLAGS -D_FORTIFY_SOURCE=2" ;;
-  esac
 fi
 
 AC_C_BIGENDIAN