NAME

       Alien::Util - Alien Utilities used at build and runtime

VERSION

       version 2.80

SYNOPSIS

        use Alien::Util qw( version_cmp );

DESCRIPTION

       This module contains some functions used by both the Alien::Build build-time and
       <Alien::Base> run-time for Alien.

   version_cmp
         $cmp = version_cmp($x, $y)

       Comparison method used by "atleast_version" in Alien::Base, "exact_version" in Alien::Base
       and "max_version" in Alien::Base. May be useful to implement custom comparisons, or for
       subclasses to overload to get different version comparison semantics than the default
       rules, for packages that have some other rules than the pkg-config behaviour.

       Should return a number less than, equal to, or greater than zero; similar in behaviour to
       the "<=>" and "cmp" operators.

SEE ALSO

       Alien::Base, alienfile, Alien::Build

AUTHOR

       Author: Graham Ollis <plicease@cpan.org>

       Contributors:

       Diab Jerius (DJERIUS)

       Roy Storey (KIWIROY)

       Ilya Pavlov

       David Mertens (run4flat)

       Mark Nunberg (mordy, mnunberg)

       Christian Walde (Mithaldu)

       Brian Wightman (MidLifeXis)

       Zaki Mughal (zmughal)

       mohawk (mohawk2, ETJ)

       Vikas N Kumar (vikasnkumar)

       Flavio Poletti (polettix)

       Salvador Fandiño (salva)

       Gianni Ceccarelli (dakkar)

       Pavel Shaydo (zwon, trinitum)

       Kang-min Liu (劉康民, gugod)

       Nicholas Shipp (nshp)

       Juan Julián Merelo Guervós (JJ)

       Joel Berger (JBERGER)

       Petr Písař (ppisar)

       Lance Wicks (LANCEW)

       Ahmad Fatoum (a3f, ATHREEF)

       José Joaquín Atria (JJATRIA)

       Duke Leto (LETO)

       Shoichi Kaji (SKAJI)

       Shawn Laffan (SLAFFAN)

       Paul Evans (leonerd, PEVANS)

       Håkon Hægland (hakonhagland, HAKONH)

       nick nauwelaerts (INPHOBIA)

       Florian Weimer

COPYRIGHT AND LICENSE

       This software is copyright (c) 2011-2022 by Graham Ollis.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.