Make sure that windows_search_path() is 'visible' in Windows (will be needed for fixup_bundle_environment)

libs/ardour/ardour/filesystem_paths.h

@@ -60,6 +60,12 @@ namespace ARDOUR {
 	 */
 	LIBARDOUR_API PBD::Searchpath ardour_data_search_path ();
 
+#ifdef PLATFORM_WINDOWS
+	/**
+	 * @return our 'Windows' search path ( corresponds to <install_dir>/share/ardour3 )
+	 */
+	LIBARDOUR_API PBD::Searchpath windows_search_path ();
+#endif
 } // namespace ARDOUR
 
 #endif