2002-02-21  Morten Welinder  <terra@diku.dk>

	* ms-excel-write.c (init_base_char_width_for_write): Constify.
	(ms_excel_write_workbook): Constify.

	* ms-excel-read.c (get_substitute_font): Constify.
	(ms_excel_get_style_from_xf): Constify.
	(biff_boundsheet_data_new): Constify.

	* ms-summary.c (read_summary_items): Constify.

	* ms-excel-util.c (get_locale_charset_name): Constify.  Remove
	code conditioned on HAVE_ICONV && !HAVE_ICONV.

	* ms-escher.c (ms_escher_read_BSE): Constify.