This patch is needed to fix compilation error on gcc 4.5+
===================================================================
--- a/src/ppdfile.cpp
+++ b/src/ppdfile.cpp
@@ -282,7 +282,7 @@
  * Opérateur d'assignation
  * Assignment operator
  */
-void PPDFile::Value::operator = (const PPDFile::Value::Value &val)
+void PPDFile::Value::operator = (const PPDFile::Value &val)
 {
     if (_preformatted)
         delete[] _preformatted;