Alien::Build::Plugin::Build::Autoconf - Autoconf plugin for Alien::Build
Contents
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 v5.40.0 2024-11-15 Alien::Build::...Build::Autoconf(3pm)
Description
This plugin provides some tools for building projects that use autoconf. The main thing this provides is
a "configure" helper, documented below and the default build stage, which is:
'%{configure} --disable-shared',
'%{make}',
'%{make} install',
On Windows, this plugin also pulls in the Alien::Build::Plugin::Build::MSYS which is required for
autoconf style projects on windows.
The other thing that this plugin does is that it does a double staged "DESTDIR" install. The author has
found this improves the overall reliability of Alien modules that are based on autoconf packages.
This plugin supports out-of-source builds (known in autoconf terms as "VPATH" builds) via the meta
property "out_of_source".
NOTE: by itself, this plugin is only intended for use on packages that include a "configure" script. For
packages that expect you to use Autotools to generate a configure script before building, you can use
Alien::Autotools to generate the "configure" script and use this plugin to run it. For more details see
the documentation for Alien::Autotools.
Environment
"SITE_CONFIG"
For a share install, this plugin needs to alter the behavior of autotools using "site.config". It
does this by generating a "site.config" file on the fly, and setting the "SITE_CONFIG" environment
variable. In the event that you already have your own "SITE_CONFIG" set, that file will be sourced
from the generated one, so your local defaults should still be honored, unless it is one that needs
to be changed for a share install.
In particular, the "lib" directory must be overridden, because on some platforms dynamic libraries
will otherwise be placed in directories that Alien::Build doesn't normally look in. Since the
alienized package will be installed in a share directory, and not a system directory, that should be
fine.
"ALIEN_BUILD_SITE_CONFIG"
If defined, this file will be also be sourced in the generated "site.config". This allows you to
have local defaults for alien share installs only.
Helpers
configure
%{configure}
The correct incantation to start an autoconf style "configure" script on your platform. Some reasonable
default flags will be provided.
Name
Alien::Build::Plugin::Build::Autoconf - Autoconf plugin for Alien::Build
Properties
with_pic
Adds "--with-pic" option when running "configure". If supported by your package, it will generate
position independent code on platforms that support it. This is required to XS modules, and generally
what you want.
autoconf normally ignores options that it does not understand, so it is usually a safe and reasonable
default to include it. A small number of projects look like they use autoconf, but are really an
autoconf style interface with a different implementation. They may fail if you try to provide it with
options such as "--with-pic" that they do not recognize. Such packages are the rationale for this
property.
msys_version
The version of Alien::MSYS required if it is deemed necessary. If Alien::MSYS isn't needed (if running
under Unix, or MSYS2, for example) this will do nothing.
config_site
The content for the generated "config.site".
See Also
Alien::Build::Plugin::Build::MSYS, Alien::Build::Plugin, Alien::Build, Alien::Base, Alien
<https://www.gnu.org/software/autoconf/autoconf.html>
<https://www.gnu.org/prep/standards/html_node/DESTDIR.html>
Synopsis
use alienfile;
plugin 'Build::Autoconf';
Version
version 2.84
