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diff --git a/libshiboken/helper.h b/libshiboken/helper.h
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+/*
+ * This file is part of the Shiboken Python Binding Generator project.
+ *
+ * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ *
+ * Contact: PySide team <contact@pyside.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * version 2.1 as published by the Free Software Foundation. Please
+ * review the following information to ensure the GNU Lesser General
+ * Public License version 2.1 requirements will be met:
+ * http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+ *
+ * As a special exception to the GNU Lesser General Public License
+ * version 2.1, the object code form of a "work that uses the Library"
+ * may incorporate material from a header file that is part of the
+ * Library.  You may distribute such object code under terms of your
+ * choice, provided that the incorporated material (i) does not exceed
+ * more than 5% of the total size of the Library; and (ii) is limited to
+ * numerical parameters, data structure layouts, accessors, macros,
+ * inline functions and templates.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef HELPER_H
+#define HELPER_H
+
+#include <Python.h>
+
+namespace Shiboken
+{
+
+// Generic helper definitions for shared library support
+#if defined _WIN32 || defined __CYGWIN__
+#define SHIBOKEN_HELPER_DLL_IMPORT __declspec(dllimport)
+#define SHIBOKEN_HELPER_DLL_EXPORT __declspec(dllexport)
+#define SHIBOKEN_HELPER_DLL_LOCAL
+#else
+#if __GNUC__ >= 4
+#define SHIBOKEN_HELPER_DLL_IMPORT __attribute__ ((visibility("default")))
+#define SHIBOKEN_HELPER_DLL_EXPORT __attribute__ ((visibility("default")))
+#define SHIBOKEN_HELPER_DLL_LOCAL  __attribute__ ((visibility("internal")))
+#else
+#define SHIBOKEN_HELPER_DLL_IMPORT
+#define SHIBOKEN_HELPER_DLL_EXPORT
+#define SHIBOKEN_HELPER_DLL_LOCAL
+#endif
+#endif
+
+// Now we use the generic helper definitions above to define SHIBOKEN_API and SHIBOKEN_LOCAL.
+// SHIBOKEN_API is used for the public API symbols. It either DLL imports or DLL exports (or does nothing for static build)
+// SHIBOKEN_LOCAL is used for non-api symbols.
+
+#define SHIBOKEN_API SHIBOKEN_HELPER_DLL_EXPORT
+#define SHIBOKEN_LOCAL SHIBOKEN_HELPER_DLL_LOCAL
+
+int PySequence_to_argc_argv(PyObject* argList, char** argv[]);
+
+} // namespace Shiboken
+
+#endif // HELPER_H
+