Alien::Build::Plugin::Probe::CommandLine(3)
                                           User Contributed Perl Documentation


NAME
       Alien::Build::Plugin::Probe::CommandLine - Probe for tools or commands
       already available

VERSION
       version 2.80

SYNOPSIS
        use alienfile;
        plugin 'Probe::CommandLine' => (
          command => 'gzip',
          args    => [ '--version' ],
          match   => qr/gzip/,
          version => qr/gzip ([0-9\.]+)/,
        );

DESCRIPTION
       This plugin probes for the existence of the given command line program.

PROPERTIES
   command
       The name of the command.

   args
       The arguments to pass to the command.

   secondary
       If you are using another probe plugin (such as
       Alien::Build::Plugin::Probe::CBuilder or
       Alien::Build::Plugin::PkgConfig::Negotiate) to detect the existence of
       a library, but also need a program to exist, then you should set
       secondary to a true value.  For example when you need both:

        use alienfile;
        # requires both liblzma library and xz program
        plugin 'PkgConfig' => 'liblzma';
        plugin 'Probe::CommandLine' => (
          command   => 'xz',
          secondary => 1,
        );

       When you don't:

        use alienfile;
        plugin 'Probe::CommandLine' => (
          command   => 'gzip',
          secondary => 0, # default
        );

   match
       Regular expression for which the program output should match.

   match_stderr
       Regular expression for which the program standard error should match.

   version
       Regular expression to parse out the version from the program output.
       The regular expression should store the version number in $1.

   version_stderr
       Regular expression to parse out the version from the program standard
       error.  The regular expression should store the version number in $1.

   atleast_version
       The minimum required version as provided by the system.

SEE ALSO
       Alien::Build, alienfile, Alien::Build::MM, Alien

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 Fandino (salva)

       Gianni Ceccarelli (dakkar)

       Pavel Shaydo (zwon, trinitum)

       Kang-min Liu (<?><?><?>, gugod)

       Nicholas Shipp (nshp)

       Juan Julian Merelo Guervos (JJ)

       Joel Berger (JBERGER)

       Petr Pisar (ppisar)

       Lance Wicks (LANCEW)

       Ahmad Fatoum (a3f, ATHREEF)

       Jose Joaquin Atria (JJATRIA)

       Duke Leto (LETO)

       Shoichi Kaji (SKAJI)

       Shawn Laffan (SLAFFAN)

       Paul Evans (leonerd, PEVANS)

       Hakon Haegland (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.

perl v5.38.0                      2023-07-25
                                   Alien::Build::Plugin::Probe::CommandLine(3)