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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-system-linux-headers" role="wrap">
<?dbhtml filename="linux-headers.html"?>
<title>Linux-&linux-version; API Headers</title>
<indexterm zone="ch-system-linux-headers">
<primary sortas="a-Linux">Linux</primary>
<secondary>API headers</secondary>
</indexterm>
<sect2 role="package">
<title/>
<para>The Linux API Headers expose the kernel's API for use by Glibc.</para>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem>
<seg>&linux-headers-ch6-sbu;</seg>
<seg>&linux-headers-ch6-du;</seg>
</seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of Linux API Headers</title>
<para>The Linux kernel needs to expose an Application Programming Interface
(API) for the system's C library (Glibc in LFS) to utilize. This is done
by way of sanitizing various C header files that are shipped in the Linux
kernel source tarball.</para>
<para>Apply a <command>sed</command> subsitution to suppress the
installation of header files in <filename
class='directory'>/usr/include/scsi</filename>. The versions provided by
Glibc will be used instead:</para>
<screen><userinput>sed -i '/scsi/d' include/Kbuild</userinput></screen>
<para>Install the header files:</para>
<screen><userinput>make mrproper
make headers_check
make INSTALL_HDR_PATH=/usr headers_install</userinput></screen>
</sect2>
<sect2 id="contents-linux-headers" role="content">
<title>Contents of Linux API Headers</title>
<segmentedlist>
<segtitle>Installed headers</segtitle>
<seglistitem>
<seg>/usr/include/{asm,linux}/*.h</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="linux-headers">
<term><filename class="headerfile">/usr/include/{asm,linux}/*.h</filename></term>
<listitem>
<para>The Linux API headers</para>
<indexterm zone="ch-system-linux-headers linux-headers">
<primary sortas="e-/usr/include/{asm,linux}/*.h">/usr/include/{asm,linux}/*.h</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>
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