NAME Alien::patch - Find or build patch VERSION version 0.12 SYNOPSIS use Alien::patch (); use Env qw( @PATH ); unshift @PATH, Alien::patch->bin_dir; my $patch = Alien::patch->exe; system "$patch -p1 < foo.patch"; Or with Alien::Build::ModuleBuild: use Alien::Base::ModuleBuild; Alien::Base::ModuleBuild->new( ... alien_bin_requires => { 'Alien::patch' => '0.08', }, alien_build_commands => { '%{patch} -p1 < foo.patch', }, ... )->create_build_script; DESCRIPTION Many environments provide the patch command, but a few do not. Using this module in your Build.PL (or elsewhere) you can make sure that patch will be available. If the system provides it, then great, this module is a no-op. If it does not, then it will download and install it into a private location so that it can be added to the PATH when this module is used. This class is a subclass of Alien::Base, so all of the methods documented there should work with this class. METHODS exe my $exe = Alien::patch->exe; Returns the command to run patch on your system. For now it simply adds the --binary option on Windows (MSWin32 but not cygwin) which is usually what you want. HELPERS patch %{patch} When used with Alien::Base::ModuleBuild in a alien_build_commands or alien_install_commands, this helper will be replaced by either patch (Unix and cygwin) or patch --binary (MSWin32). CAVEATS This version of Alien::patch adds patch to your path, if it isn't already there when you use it, like this: use Alien::patch; # deprecated, issues a warning This was a design mistake, and now deprecated. When Alien::patch was originally written, it was one of the first Alien tool style modules on CPAN. As such, the author and the Alien::Base team hadn't yet come up with the best practices for this sort of module. The author, and the Alien::Base team feel that for consistency and for readability it is better use Alien::patch without the automatic import: use Alien::patch (); and explicitly modify the PATH yourself (examples are above in the synopsis). The old style will issue a warning. The old behavior will be removed, but not before 31 January 2018. AUTHOR Author: Graham Ollis Contributors: Zakariyya Mughal COPYRIGHT AND LICENSE This software is copyright (c) 2017 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.