https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54687
--- Comment #14 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Dominique d'Humieres from comment #13) > No activity since over two years. Any objection to close this PR as FIXED? I personally don't mind since I don't use gfortran and I am not planning to work on this, but if somebody ever wanted to fix this, the information above would be useful. In a nutshell, gfortran duplicates a lot of the common machinery, which is a waste of both time (since the options are processed anyway by the common machinery and then again by gfortran) and space (since gfortran uses its own structures for options that are already present in the common machinery). Also, improvements in the common machinery do not benefit gfortran. Comment #12 explains what's left to do. On the other hand, the benefits of what remains to be done are likely small. Not even the C/C++ FE are making full use of the common machinery.
