How to find our working compiler Post: 18793

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LEARN ABOUT DEBIAN

extutils::f77

F77(3pm)						User Contributed Perl Documentation						  F77(3pm)

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:

       o   runtime

	   Returns a list of F77 runtime libraries.

	     $fortranlibs = ExtUtils::F77->runtime;

       o   runtimeok

	   Returns TRUE only if runtime libraries have been found successfully.

       o   trail_

	   Returns true if F77 names have trailing underscores.

       o   compiler

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

       o   cflags

	   Returns compiler flags.

       o   testcompiler

	   Test to see if compiler actually works.

       More methods  will probably be added in the future.

AUTHOR

       Karl Glazebrook (karlglazebrook@mac.com).

perl v5.10.1							    2011-01-01								  F77(3pm)