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

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

version 2.48

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

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

The name of the command.

The arguments to pass to the command.

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
 );

Regular expression for which the program output should match.

Regular expression for which the program standard error should match.

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

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

The minimum required version as provided by the system.

Alien::Build, alienfile, Alien::Build::MM, Alien

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)

This software is copyright (c) 2011-2020 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.

2022-03-13 perl v5.32.1

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