source: BOOK/cross-tools/native/variables.xml@ 61a83e8

clfs-1.2 clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 61a83e8 was c1832da, checked in by Jim Gifford <clfs@…>, 16 years ago

Ryan's Toolchain Update

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[c1832da]1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-cross-tools-variables">
9 <?dbhtml filename="variables.html"?>
10
11 <title>Build Variables</title>
12
13 <bridgehead renderas="sect4">Setting Host and Target</bridgehead>
14
15 <para os="a">During the building of the cross-compile tools you will need to
16 set a few variables that will be dependent on your particular needs.
17 The first variable will be the triplet of the host machine, which will be
18 put into the <envar>CLFS_HOST</envar> variable. To account for the
19 possibility that the host and target are the same arch, as cross-compiling
20 won't work when host and target are the same, part of the triplet needs to
21 be changed slightly to add "cross". Set <envar>CLFS_HOST</envar> using the
22 following command:</para>
23
24<screen os="b"><userinput>export CLFS_HOST="$(echo $MACHTYPE | \
25 sed "s/$(echo $MACHTYPE | cut -d- -f2)/cross/")"</userinput></screen>
26
27 <para os="c">Now you will need to set the triplet for the target
28 architecture. Set the target variable using the following command:</para>
29
30<screen os="d"><userinput>export CLFS_TARGET="$MACHTYPE"</userinput></screen>
31
32</sect1>
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