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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-tools-kernel-headers">
<title>Linux-&linux-version; headers</title>
<?dbhtml filename="kernel-headers.html"?>
<indexterm zone="ch-tools-kernel-headers">
<primary sortas="a-Linux">Linux</primary>
<secondary>tools, headers</secondary></indexterm>
<screen>&buildtime; 0.1 SBU
&diskspace; 186 MB</screen>
<sect2>
<title>Installation of the kernel headers</title>
<para>As some packages need to refer to the kernel header files, we're going
to unpack the kernel archive now, set it up, and copy the required files to a
place where <command>gcc</command> can later find them.</para>
<para>Prepare for the header installation with:</para>
<screen><userinput>make mrproper</userinput></screen>
<para>This ensures that the kernel tree is absolutely clean. The kernel team
recommends that this command be issued prior to <emphasis>each</emphasis>
kernel compilation. You shouldn't rely on the source tree being clean after
un-tarring.</para>
<para>Create the <filename>include/linux/version.h</filename> file:</para>
<screen><userinput>make include/linux/version.h</userinput></screen>
<para>Create the platform-specific <filename>include/asm</filename>
symlink:</para>
<screen><userinput>make symlinks</userinput></screen>
<para>Install the platform-specific header files:</para>
<screen><userinput>mkdir /tools/include/asm
cp include/asm/* /tools/include/asm
cp -R include/asm-generic /tools/include</userinput></screen>
<para>Finally, install the cross-platform kernel header files:</para>
<screen><userinput>cp -R include/linux /tools/include</userinput></screen>
</sect2>
</sect1>
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