Most of options in gcc/fortran/lang.opt, like -fmax-stack-var-size=N, aren't documented in the gcc manual.
-- Summary: Fortran compiler options aren't documented Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl at lucon dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27064