Improve g_get_system_data_dirs() on Windows. A library that calls

Improve g_get_system_data_dirs() on Windows. A library that calls

2005-04-08  Tor Lillqvist  <tml@novell.com>

	Improve g_get_system_data_dirs() on Windows. A library that calls
	g_get_system_data_dirs() might be installed in a different
	top-level prefix than GLib or the application being run.

	* glib/gutils.h (g_win32_get_system_data_dirs): New static
	function defined in this header. Calls
	g_win32_get_system_data_dirs_for_module() passing the address of
	itself as parameter. g_get_system_data_dirs() is #defined as this
	function.

	* glib/gutils.c (g_win32_get_system_data_dirs_for_module): New
	function. If the address parameter is non-NULL, the corresponding
	module's installation location is used for one of the returned
	path names, in addition to the COMMON_APPDATA, COMMON_DOCUMENTS,
	glib top-level and application top-level folders.
	(g_get_system_data_dirs): Now just for backward compatibility on
	Win32. Just call g_win32_get_system_data_dirs_for_module(NULL).

	* glib/glib.symbols: Add g_win32_get_system_data_dirs_for_module.