Util methods to modify the custom library search path

refs #615

src/blackmisc/librarypath.h

@@ -0,0 +1,34 @@
+/* Copyright (C) 2016
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKMISC_LIBRARYPATH_H
+#define BLACKMISC_LIBRARYPATH_H
+
+#include "blackmiscexport.h"
+
+namespace BlackMisc
+{
+
+    //! Sets the custom path to additionally search when loading libraries.
+    //! This does not change the default search paths.
+    //! \warning This is currently Windows only. Use rpath on Unix.
+    //! \sa getCustomLibraryPath
+    BLACKMISC_EXPORT void setCustomLibraryPath(const QString &path);
+
+    //! Get the custom path to search when loading libraries.
+    //! Returns an empty string when no custom library path is set.
+    //! \note This will not return the default search path.
+    //! \warning This is currently Windows only. Use rpath on Unix.
+    BLACKMISC_EXPORT QString getCustomLibraryPath();
+
+} // ns
+
+#endif // guard