http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46897
--- Comment #7 from Tobias Burnus <burnus at gcc dot gnu.org> 2010-12-13 16:36:57 UTC --- Richard Maine agrees with the assessment of comment 5: - For INTERFACE-defined defined-ASSIGNMENT(=), the intrinsic assignment should be used (cf. example in comment 2) - correctly handled by gfortran - For type-bound-defined defined-assignment, the defined assignment should be used (comment 0 and comment 1). gfortran currently mishandles this F2003 feature. Cf. http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/d6220bd4aa90f368