+#ifdef G_OS_WIN32
+#ifdef _WIN64
+#define g_win32_get_package_installation_directory g_win32_get_package_installation_directory_utf8
+#define g_win32_get_package_installation_subdirectory g_win32_get_package_installation_subdirectory_utf8
+#endif
+
+GLIB_AVAILABLE_IN_ALL
+gchar *g_win32_get_package_installation_directory_utf8 (const gchar *package,
+ const gchar *dll_name);
+GLIB_AVAILABLE_IN_ALL
+gchar *g_win32_get_package_installation_subdirectory_utf8 (const gchar *package,
+ const gchar *dll_name,
+ const gchar *subdir);
+
+#endif /* G_OS_WIN32 */
+