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 kgb@aaoepp.aao.gov.au

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

METHODS

runtime()    - Returns list of F77 runtime libraries
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

[probably more to come.]