Man Page f77.1

NAME

     f77 - FORTRAN 77 compiler

SYNOPSIS

     This release of Forte [tm] Developer does not include the
     FORTRAN 77 compiler, f77. Recent Forte Developer releases
     have migrated many FORTRAN 77 features into the Fortran 95
     compiler, f95. Much of the functionality of the f77 compiler
     is now available with the Fortran 95 compiler.

     In the Forte Developer 7 compiler release, the f77 command
     calls the f95 compiler with an appropriate set of defaults:

           f95 -f77 -ftrap=%none

     If it is necessary to link to library routines that were
     compiled with a previously released f77 compiler, add
     -xlang=f77 to the command line.

     However, if you are compiling and linking in separate steps
     and explicitly specify -xlang=f77, or -lM77, or -lF77,  or
     -lsunmath, you must link with f95 (or the f77 script) and
     not with cc or CC.

     If you are also compiling with the -fast flag, add
     -ftrap=%none after -fast to retain Fortran 77's trapping
     behavior on arithmetic exceptions. -fast sets the trapping
     mode to "common".

        f77 -fast -ftrap=%none

     If your FORTRAN 77 program does not compile with the Fortran
     95 compiler, either migrate your program to be compliant
     with the standard Fortran 95 language or use the Forte
     Developer 6 update 2 release of the f77 compiler.

     Invoking the f77 script issues a message to alert you to the
     fact that you are using the f95 compiler in -f77 compatibil-
     ity mode. You can disable this message by adding
     -errtags=INVOKE to the command line.

     See the f95(1) man page and the Fortran 95 readme for more
     information.  The Fortran 95 readme can be displayed with
     the command

        f95 -xhelp=readme