If debug info is written to a file on windows, are filenames encoded as utf8, or in system-ascii ?

gdb returns \344 for "a umlaut" => that looks like ascii

but it also happens to be the unicode codepoint E4 ( http://www.utf8-chartable.de/unicode-utf8-table.pl?unicodeinhtml=dec&htmlent=1 )

Anyone any idea?

Martin