Alien::Util(3)

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

VERSION
version 2.83

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.