-ext_names=e

Create external names with or without trailing underscores.

SPARC:77 x86:77

e must be either plain or underscores. The default is underscores.

-ext_names=plain: Do not add trailing underscore.

-ext_names=underscores: Add trailing underscore.

An external name is a name of a subroutine, function, block data subprogram, or labeled common. This option affects both the name of the routine's entry point and the name used in calls to it. This option may be used to allow Fortran 77 routines to call and be called by other language routines.