------- Comment #2 from pi00100100 at gmail dot com 2009-09-16 12:27 ------- The fact is that the characters belonging to the source character set but not belonging the basic source character set are left to the implementation (as far as I understood). So it would be better (for portability purpouses) to have an option to avoid all of them and to use only the basic ones.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41374