Release gil before call C++ function on virtual method.

Fixes bug #423.

Reviewer: Hugo Parente Lima <hugo.pl@gmail.com>
          Luciano Wolf <luciano.wolf@openbossa.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/libshiboken/gilstate.h b/libshiboken/gilstate.h
index efb3cb794..b2f33cb2c 100644
--- a/libshiboken/gilstate.h
+++ b/libshiboken/gilstate.h
@@ -34,6 +34,7 @@ class LIBSHIBOKEN_API GilState
 public:
     GilState();
     ~GilState();
+    void release();
 private:
     PyGILState_STATE m_gstate;
 };