https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69520
--- Comment #1 from Harald Anlauf <anlauf at gmx dot de> ---
The patch in comment #0 regtests ok on i686-pc-linux-gnu.
Possible ChangeLog entry:
2016-01-27 ...
PR fortran/69520
* options.c: Enhance -fcheck by reversal of specifications.
* invoke.texi: Document enhancement of -fcheck.
