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https://github.com/perlalien/alien-m4
Find or build m4
https://github.com/perlalien/alien-m4
alien aliens autotools m4 perl
Last synced: about 1 month ago
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Find or build m4
- Host: GitHub
- URL: https://github.com/perlalien/alien-m4
- Owner: PerlAlien
- Created: 2014-11-19T16:09:03.000Z (about 10 years ago)
- Default Branch: main
- Last Pushed: 2022-05-31T19:39:33.000Z (over 2 years ago)
- Last Synced: 2024-06-19T04:22:54.756Z (6 months ago)
- Topics: alien, aliens, autotools, m4, perl
- Language: Perl
- Homepage:
- Size: 54.7 KB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: Changes
Awesome Lists containing this project
README
# Alien::m4     
Find or build GNU m4
# SYNOPSIS
From a Perl script
```perl
use Alien::m4;
use Env qw( @PATH );
unshift @PATH, Alien::m4->bin_dir; # m4 is now in your path
```
From Alien::Base Build.PL
```perl
use Alien:Base::ModuleBuild;
my $builder = Module::Build->new(
...
alien_bin_requires => {
'Alien::m4' => '0.07',
},
...
);
$builder->create_build_script;
```
# DESCRIPTION
This package can be used by other CPAN modules that require GNU m4.
# METHODS
## exe
```perl
my $m4 = Alien::m4->exe;
```
Returns the "name" of m4. Normally this is `m4`, but on some platforms
it may be gm4 or gnum4, or whatever is specified by `$ENV{M4}`.
# HELPERS
## m4
```
%{m4}
```
Returns the name of the m4 command. Usually just `m4`.
# CAVEATS
Why GNU m4? Many Unixen come with BSD or other variants of m4 which are
perfectly good. Unfortunately, the main use case for this module is
[Alien::Autotools](https://metacpan.org/pod/Alien::Autotools) and friends. Autoconf requires the GNU m4, probably
for political reasons, possibly for technical reasons. If you are using
one of these Unixen, don't despair, you can usually install the GNU
version of m4 either by building from source or by installing a binary
package, with either the name `gm4` or `gnum4`, and this module will
find it, and [Alien::Autotools](https://metacpan.org/pod/Alien::Autotools) will be able to use it.
# AUTHOR
Graham Ollis
# 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.