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<!-- $NetBSD: porting.xml,v 1.7 2021/11/30 10:00:05 jperkin Exp $ -->
<chapter id="porting"> <?dbhtml filename="porting.html"?>
<title>Porting pkgsrc</title>
<para>The pkgsrc system has already been ported to many
operating systems, hardware architectures and compilers. This
chapter explains the necessary steps to make pkgsrc even more
portable.</para>
<sect1 id="porting.opsys">
<title>Porting pkgsrc to a new operating system</title>
<para>To port pkgsrc to a new operating system (called
<literal>MyOS</literal> in this example), you need to touch the
following files:</para>
<variablelist>
<varlistentry><term><filename>pkgtools/bootstrap-mk-files/files/mods/<replaceable>MyOS</replaceable>.sys.mk</filename></term>
<listitem><para>This file contains some basic definitions, for
example the name of the C
compiler.</para></listitem></varlistentry>
<varlistentry><term><filename>mk/bsd.prefs.mk</filename></term>
<listitem><para>Insert code that defines the variables
<varname>OPSYS</varname>, <varname>OS_VERSION</varname>,
<varname>OPSYS_VERSION</varname>, <varname>LOWER_VENDOR</varname>,
<varname>MACHINE_ARCH</varname>, <varname>OBJECT_FMT</varname>,
<varname>APPEND_ELF</varname>, and the other variables that
appear in this file.</para></listitem></varlistentry>
<varlistentry><term><filename>mk/platform/<replaceable>MyOS</replaceable>.mk</filename></term>
<listitem><para>This file contains the platform-specific
definitions that are used by pkgsrc. Start by copying one of the
other files and edit it to your
needs.</para></listitem></varlistentry>
<varlistentry><term><filename>mk/tools/tools.<replaceable>MyOS</replaceable>.mk</filename></term>
<listitem><para>This file defines the paths to all the tools
that are needed by one or the other package in pkgsrc, as well
as by pkgsrc itself. Find out where these tools are on your
platform and add them.</para></listitem></varlistentry>
</variablelist>
<para>Now, you should be able to build some basic packages, like
<filename role="pkg">lang/perl5</filename>, <filename
role="pkg">shells/bash</filename>.</para>
</sect1>
</chapter>
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