mirror of https://github.com/tLDP/LDP
30 lines
782 B
XML
30 lines
782 B
XML
<sect2>
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<title>Installation of Flex</title>
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<para>Install Flex by running the following commands:</para>
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<para><screen><userinput>./configure --prefix=/usr &&
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make &&
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make install</userinput></screen></para>
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<para>Some programs don't know about flex and try to find the lex program
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(flex is a (better) alternative for lex). So to please those few
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programs out there we'll create a lex script that calls flex and have
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it emulate lex.</para>
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<para>Create a new file <filename>/usr/bin/lex</filename> by running the
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following:</para>
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<para><screen><userinput>cat > /usr/bin/lex << "EOF"</userinput>
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#!/bin/sh
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# Begin /usr/bin/lex
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exec /usr/bin/flex -l "$@"
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# End /usr/bin/lex
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<userinput>EOF
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chmod 755 /usr/bin/lex</userinput></screen></para>
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</sect2>
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