mirror of https://github.com/tLDP/LDP
123 lines
4.6 KiB
XML
123 lines
4.6 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-tools-generalinstructions">
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<?dbhtml filename="generalinstructions.html"?>
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<title>General Compilation Instructions</title>
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<para>When building packages there are several assumptions made within
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the instructions:</para>
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<itemizedlist>
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<listitem>
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<para>Several of the packages are patched before compilation, but only when
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the patch is needed to circumvent a problem. A patch is often needed in
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both this and the next chapter, but sometimes in only one or the other.
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Therefore, do not be concerned if instructions for a downloaded patch seem
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to be missing. Warning messages about <emphasis>offset</emphasis> or
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<emphasis>fuzz</emphasis> may also be encountered when applying a patch. Do
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not worry about these warnings, as the patch was still successfully
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applied.</para>
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</listitem>
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<listitem>
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<para>During the compilation of most packages, there will be several
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warnings that scroll by on the screen. These are normal and can safely be
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ignored. These warnings are as they appear—warnings about
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deprecated, but not invalid, use of the C or C++ syntax. C standards change
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fairly often, and some packages still use the older standard. This is not a
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problem, but does prompt the warning.</para>
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</listitem>
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<listitem>
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<para>Check one last time that the <envar>LFS</envar> environment variable
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is set up properly:</para>
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<screen role="nodump"><userinput>echo $LFS</userinput></screen>
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<para>Make sure the output shows the path to the LFS partition's mount
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point, which is <filename class="directory">/mnt/lfs</filename>, using our
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example.</para>
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</listitem>
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<listitem>
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<para>Finally, two last important items must be emphasized:</para>
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<important>
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<para>The build instructions assume that the <xref
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linkend='pre-hostreqs'/>, including symbolic links, have been set
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properly:</para>
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<itemizedlist role='important'>
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<listitem override='bullet'><para><command>bash</command> is the shell
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in use.</para></listitem>
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<listitem override='bullet'><para><command>sh</command> is a symbolic
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link to <command>bash</command>.</para></listitem>
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<listitem override='bullet'><para><command>/usr/bin/awk</command> is a
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symbolic link to <command>gawk</command>.</para></listitem>
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<listitem override='bullet'><para><command>/usr/bin/yacc</command> is a
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symbolic link to <command>bison</command> or a small script that
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executes bison.</para></listitem>
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</itemizedlist>
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</important>
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<important>
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<para>To re-emphasize the build process:</para>
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<orderedlist numeration="arabic" spacing="compact">
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<listitem>
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<para>Place all the sources and patches in a directory that will be
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accessible from the chroot environment such as
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<filename class="directory">/mnt/lfs/sources/</filename>. Do
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<emphasis>not</emphasis> put sources in
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<filename class="directory">/mnt/lfs/tools/</filename>.</para>
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</listitem>
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<listitem>
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<para>Change to the sources directory.</para>
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</listitem>
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<listitem id='buildinstr' xreflabel='Package build instructions'>
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<para>For each package:</para>
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<orderedlist numeration="loweralpha" spacing="compact">
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<listitem>
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<para>Using the <command>tar</command> program, extract the package
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to be built. In Chapter 5, ensure you are the <emphasis>lfs</emphasis>
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user when extracting the package.</para>
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</listitem>
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<listitem>
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<para>Change to the directory created when the package was
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extracted.</para>
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</listitem>
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<listitem>
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<para>Follow the book's instructions for building the package.</para>
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</listitem>
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<listitem>
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<para>Change back to the sources directory.</para>
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</listitem>
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<listitem>
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<para>Delete the extracted source directory and any
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<filename class="directory"><replaceable><package></replaceable>-build</filename>
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directories that were created in the build process unless instructed otherwise.</para>
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</listitem>
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</orderedlist>
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</listitem>
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</orderedlist>
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</important>
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</listitem>
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</itemizedlist>
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</sect1>
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