https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97320
--- Comment #4 from Jacques Le Bourlot <Jacques.Lebourlot at obspm dot fr> --- (In reply to kargl from comment #3) > (In reply to Jacques Le Bourlot from comment #2) > > > > The compiler should see that "IF (i >= 1)" THEN "i-1 >= 0". Quoting the > > manual is not an adequate answer. An upgrade would be most welcomed. > > > > gfortran is mostly maintained by a diminishing number of contributors. > Messages telling the few remaining contributors what they ought to > do are likely to fall on deaf ears. Patches from new contributors > are welcomed; otherwise, sometime in the future, perhaps a decade > or so, someone might care enough to try to fix this annoyance. In the > meantime, add -Wno-do-subscript to your options. My apologies. I did not mean to be rude or to complain. And I am not skilled enough to contribute. Sorry. But I will keep -Wdo-subscript, because I need the few cases that are *real* positives. Jacques