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6.21.&nbsp;Attr-2.4.47
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Linux From Scratch - Version 7.7-systemd
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Chapter&nbsp;6.&nbsp;Installing Basic System Software
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<h1 class="sect1">
<a id="ch-system-attr" name="ch-system-attr"></a>6.21. Attr-2.4.47
</h1>
<div class="package" lang="en" xml:lang="en">
<p>
The attr package contains utilities to administer the extended
attributes on filesystem objects.
</p>
<div class="segmentedlist">
<div class="seglistitem">
<div class="seg">
<strong class="segtitle">Approximate build time:</strong>
<span class="segbody">less than 0.1 SBU</span>
</div>
<div class="seg">
<strong class="segtitle">Required disk space:</strong>
<span class="segbody">4.2 MB</span>
</div>
</div>
</div>
</div>
<div class="installation" lang="en" xml:lang="en">
<h2 class="sect2">
6.21.1. Installation of Attr
</h2>
<p>
Modify the documentation directory so that it is a versioned
directory:
</p>
<pre class="userinput">
<kbd class=
"command">sed -i -e 's|/@pkg_name@|&amp;-@pkg_version@|' include/builddefs.in</kbd>
</pre>
<p>
Prevent installation of manual pages that were already installed by
Man-Pages package:
</p>
<pre class="userinput">
<kbd class="command">sed -i -e "/SUBDIRS/s|man2||" man/Makefile</kbd>
</pre>
<p>
Prepare Attr for compilation:
</p>
<pre class="userinput">
<kbd class="command">./configure --prefix=/usr</kbd>
</pre>
<p>
Compile the package:
</p>
<pre class="userinput">
<kbd class="command">make</kbd>
</pre>
<p>
The tests need to be run on a filesystem that supports extended
attributes such as the ext2, ext3, or ext4 filesystems. The tests
are also known to fail if running multiple simultaneous tests (-j
option greater than 1). To test the results, issue:
</p>
<pre class="userinput">
<kbd class="command">make -j1 tests root-tests</kbd>
</pre>
<p>
Install the package:
</p>
<pre class="userinput">
<kbd class="command">make install install-dev install-lib
chmod -v 755 /usr/lib/libattr.so</kbd>
</pre>
<p>
The shared library needs to be moved to <code class=
"filename">/lib</code>, and as a result the <code class=
"filename">.so</code> file in <code class=
"filename">/usr/lib</code> will need to be recreated:
</p>
<pre class="userinput">
<kbd class="command">mv -v /usr/lib/libattr.so.* /lib
ln -sfv ../../lib/$(readlink /usr/lib/libattr.so) /usr/lib/libattr.so</kbd>
</pre>
</div>
<div class="content" lang="en" xml:lang="en">
<h2 class="sect2">
<a id="contents-attr" name="contents-attr"></a>6.21.2. Contents of
Attr
</h2>
<div class="segmentedlist">
<div class="seglistitem">
<div class="seg">
<strong class="segtitle">Installed programs:</strong>
<span class="segbody">attr, getfattr, and setattr</span>
</div>
<div class="seg">
<strong class="segtitle">Installed library:</strong>
<span class="segbody">libattr.{a,so}</span>
</div>
<div class="seg">
<strong class="segtitle">Installed directories:</strong>
<span class="segbody">/usr/include/attr and
/usr/share/doc/attr-2.4.47</span>
</div>
</div>
</div>
<div class="variablelist">
<h3>
Short Descriptions
</h3>
<table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top" />
<col />
</colgroup>
<tbody>
<tr>
<td>
<p>
<a id="attr" name="attr"></a><span class=
"term"><span class=
"command"><strong>attr</strong></span></span>
</p>
</td>
<td>
<p>
Extends attributes on filesystem objects
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="getfattr" name="getfattr"></a><span class=
"term"><span class=
"command"><strong>getfattr</strong></span></span>
</p>
</td>
<td>
<p>
Gets the extended attributes of filesystem objects
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="setattr" name="setattr"></a><span class=
"term"><span class=
"command"><strong>setattr</strong></span></span>
</p>
</td>
<td>
<p>
Sets the extended attributes of filesystem objects
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="libattr" name="libattr"></a><span class=
"term"><code class="filename">libattr</code></span>
</p>
</td>
<td>
<p>
Contains the libbrary functions for manipulating extended
attributes
</p>
</td>
</tr>
</tbody>
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