bionic (3) ExtUtils::F77.3pm.gz

NAME

       ExtUtils::F77 - Simple interface to F77 libs

DESCRIPTION

       This module tries to figure out how to link C programs with Fortran subroutines on your system. Basically
       one must add a list of Fortran runtime libraries. The problem is their location and name varies with each
       OS/compiler combination!

       This module tries to implement a simple 'rule-of-thumb' database for various flavours of UNIX systems.  A
       simple self-documenting Perl database of knowledge/code for figuring out how to link for various
       combinations of OS and compiler is embedded in the modules Perl code. Please help save the world by
       sending database entries for your system to karl_pgplot@mac.com

       Note the default on most systems is now to search for a generic 'GNU' compiler which can be g77, gfortran
       or g95 and then find the appropriate link libraries automatically. (This is the 'Generic' 'GNU' database
       entry in the code.)

       The library list which the module returns can be explicitly overridden by setting the environment
       variable F77LIBS, e.g.

         % setenv F77LIBS "-lfoo -lbar"
         % perl Makefile.PL
         ...

SYNOPSIS

         use ExtUtils::F77;               # Automatic guess
         use ExtUtils::F77 qw(sunos);     # Specify system
         use ExtUtils::F77 qw(linux g77); # Specify system and compiler
         $fortranlibs = ExtUtils::F77->runtime;

METHODS

       The following methods are provided:

       •   runtime

           Returns a list of F77 runtime libraries.

             $fortranlibs = ExtUtils::F77->runtime;

       •   runtimeok

           Returns TRUE only if runtime libraries have been found successfully.

       •   trail_

           Returns true if F77 names have trailing underscores.

       •   compiler

           Returns command to execute the compiler (e.g. 'f77').

       •   cflags

           Returns compiler flags.

       •   testcompiler

           Test to see if compiler actually works.

       More methods  will probably be added in the future.

AUTHOR

       Karl Glazebrook (karlglazebrook@mac.com).