http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48298
--- Comment #4 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> 2011-05-02 13:04:30 UTC --- Status: With some significant help from Michael, we have a front-end patch generating a call to transfer_derived() which passes a pointer to the user defined DTIO procedure to libgfortran. Next step is parsing format strings in libgfortran for the FMT_DT specifier.