source: chapter06/flex-inst.xml@ 8f93b15

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Last change on this file since 8f93b15 was 8f93b15, checked in by Timothy Bauscher <timothy@…>, 21 years ago

o Updated to binutils-2.13.2, procps-3.1.5.
o Made all LDFLAGS=-static LDFLAGS="-static".
o Added symlink from libfl.a to libl.a.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2242 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

  • Property mode set to 100644
File size: 835 bytes
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1<sect2>
2<title>Installation of Flex</title>
3
4<para>Install Flex by running the following commands:</para>
5
6<para><screen><userinput>./configure --prefix=/usr &amp;&amp;
7make &amp;&amp;
8make install &amp;&amp;
9ln -s libfl.a /usr/lib/libl.a</userinput></screen></para>
10
11<para>Some programs don't know about flex and try to find the lex program
12(flex is a (better) alternative for lex). So to please those few
13programs out there we'll create a bash script called lex that calls flex
14and have it emulate lex.</para>
15
16<para>Create a new file <filename>/usr/bin/lex</filename> by running the
17following:</para>
18
19<para><screen><userinput>cat &gt; /usr/bin/lex &lt;&lt; "EOF"</userinput>
20#!/bin/sh
21# Begin /usr/bin/lex
22
23exec /usr/bin/flex -l "$@"
24
25# End /usr/bin/lex
26<userinput>EOF
27chmod 755 /usr/bin/lex</userinput></screen></para>
28
29</sect2>
30
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