http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47400
--- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-01-24 23:45:31 UTC --- This would be a testsuite issue; the tests require a locale using the ASCII character set. Where (in several .exp files) the code does # Many hosts now default to a non-ASCII C locale, however, so # they can set a charset encoding here if they need. if { [ishost "*-*-cygwin*"] } { setenv LC_ALL C.ASCII setenv LANG C.ASCII } or similar, you need to add a new case for your targets using an appropriate locale name - if they have a version of the C locale that uses ASCII.