[Bug fortran/48972] OPEN with Unicode file name

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48972

--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-05-12 12:39:32 UTC ---
Created attachment 24238
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24238
Test case

(In reply to comment #1)
> For the diagnostic, the following untested patch should do.

Well, almost. It fails for FORMAT/fmt=; I have to admit that I do not quite
understand why only for e->expr_type == EXPR_CONSTANT a default-kind character
is tested for in   io.c's  resolve_tag_format.

Jerry, could you have a look? I am a bit lost.