contrib: Make sure we don't have any warning in libdirac as they end up in error.

extras/contrib/src/Patches/dirac-cross.patch

@@ -77,3 +77,14 @@ diff -ruN dirac-0.6.0.old/configure.ac dirac-0.6.0/configure.ac
  AM_CONDITIONAL(HAVE_DIAG, $HAVE_DIAG)
  
  dnl -----------------------------------------------
+--- dirac/libdirac_common/band_codec.cpp    2007-07-06 23:20:51.000000000 +0200
++++ dirac/libdirac_common/band_codec.cpp    2007-03-27 18:29:13.000000000 +0200
+
+@@ -433,7 +433,7 @@
+         }
+ 
+     }
+-    return 0; // Avoid warning
++
+ }
+