| 1 | <sect1 id="ch06-ed" xreflabel="Ed">
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| 2 | <title>Installing Ed-&ed-version;</title>
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| 3 | <?dbhtml filename="ed.html" dir="chapter06"?>
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| 4 |
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| 5 | <para>The Ed package contains a spartan line editor.</para>
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| 6 |
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| 7 | <screen>Estimated build time: &ed-time;
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| 8 | Estimated required disk space: &ed-compsize;</screen>
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| 9 |
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| 10 | &aa-ed-down;
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| 11 | &aa-ed-dep;
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| 12 |
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| 13 | <sect2><title> </title><para> </para></sect2>
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| 14 |
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| 15 | <sect2>
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| 16 | <title>Installation of Ed</title>
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| 17 |
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| 18 | <note><para>Ed isn't something which many people use. It's installed here
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| 19 | because it can be used by the patch program if you encounter an ed-based patch
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| 20 | file. This happens rarely because diff-based patches are preferred these
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| 21 | days.</para></note>
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| 22 |
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| 23 | <para>Ed normally uses the mktemp function to create temporary files in
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| 24 | <filename class="directory">/tmp</filename>, but this function contains a
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| 25 | vulnerability (see the section on Temporary Files in <ulink
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| 26 | url="http://en.tldp.org/HOWTO/Secure-Programs-HOWTO/avoid-race.html"/>). The
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| 27 | following patch makes Ed use mkstemp instead, which is the recommended way to
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| 28 | create temporary files.</para>
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| 29 |
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| 30 | <para>Apply the patch:</para>
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| 31 |
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| 32 | <screen><userinput>patch -Np1 -i ../&ed-patch;</userinput></screen>
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| 33 |
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| 34 | <para>Now prepare Ed for compilation:</para>
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| 35 |
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| 36 | <screen><userinput>./configure --prefix=/usr --exec-prefix=""</userinput></screen>
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| 37 |
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| 38 | <para>The meaning of the configure option:</para>
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| 39 |
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| 40 | <itemizedlist>
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| 41 | <listitem><para><userinput>--exec-prefix=""</userinput>: This forces the
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| 42 | programs to be installed into the <filename>/bin</filename> directory. Having
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| 43 | the programs available there is useful in the event of the
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| 44 | <filename>/usr</filename> partition being unavailable.</para></listitem>
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| 45 | </itemizedlist>
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| 46 |
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| 47 | <para>Compile the package:</para>
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| 48 |
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| 49 | <screen><userinput>make</userinput></screen>
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| 50 |
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| 51 | <para>This package has a test suite available which can perform a number of
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| 52 | checks to ensure it built correctly. Should you choose to run it, the
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| 53 | following command will do so:</para>
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| 54 |
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| 55 | <screen><userinput>make check</userinput></screen>
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| 56 |
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| 57 | <para>Install the package:</para>
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| 58 |
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| 59 | <screen><userinput>make install</userinput></screen>
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| 60 |
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| 61 | </sect2>
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| 62 |
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| 63 | &aa-ed-shortdesc;
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| 64 | &aa-ed-desc;
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| 65 |
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| 66 | </sect1>
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| 67 |
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