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cross-ng: Simplify the command to build ip from IPRoute2 in chapter 7

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I had some incorrect understanding about overriding make variables, thus
a sed is used unnecessarily.
This commit is contained in:
Xi Ruoyao 2024-02-20 18:25:27 +08:00
parent 83b0abd7cf
commit 426c3a49e6
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1 changed files with 13 additions and 8 deletions
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chapter07/iproute2.xml
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@ -44,18 +44,13 @@
<sect2 role="installation">
<title>Use IPRoute2 to Set Up Loopback Network Interface</title>
<para>IPRoute2 package has several dependencies not installed yet, but
we only need <command>ip</command> utility from the package now.
Disable the build of other utilities:</para>
<screen><userinput remap="pre">sed '/SUBDIRS/s/=.*/=lib ip/' -i Makefile</userinput></screen>
<para>Compile the package:</para>
<screen><userinput remap="make">PKG_CONFIG=false make</userinput></screen>
<screen><userinput remap="make">PKG_CONFIG=false make SUBDIRS='lib ip'</userinput></screen>
<variablelist>
<title>The meaning of the environment variable:</title>
<title>The meaning of the environment and overriden make
variables:</title>
<varlistentry>
<term><parameter>PKG_CONFIG=false</parameter></term>
@ -66,6 +61,16 @@
need these dependencies.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>SUBDIRS='lib ip'</parameter></term>
<listitem>
<para>Only build the <command>ip</command> utility from the
package and disable the build of other utilities. This is needed
to prevent a build failure due to the lack of some
dependencies.</para>
</listitem>
</varlistentry>
</variablelist>
<para>It's not needed to install the <command>ip</command> utility now.