10.0
10.0-rc1
10.1
10.1-rc1
11.0
11.0-rc1
11.0-rc2
11.0-rc3
11.1
11.1-rc1
11.2
11.2-rc1
11.3
11.3-rc1
12.0
12.0-rc1
12.1
12.1-rc1
12.2
12.2-rc1
6.0
6.1
6.1.1
6.3
6.4
6.5
6.6
6.7
6.8
7.0
7.1
7.2
7.3
7.4
7.5
7.5-systemd
7.6
7.6-systemd
7.7
7.7-systemd
7.8
7.8-systemd
7.9
7.9-systemd
8.0
8.1
8.2
8.3
8.4
9.0
9.1
arm
bdubbs/gcc13
ml-11.0
multilib
renodr/libudev-from-systemd
s6-init
trunk
v5_1
v5_1_1
xry111/arm64
xry111/arm64-12.0
xry111/clfs-ng
xry111/lfs-next
xry111/loongarch
xry111/loongarch-12.0
xry111/loongarch-12.1
xry111/loongarch-12.2
xry111/mips64el
xry111/multilib
xry111/pip3
xry111/rust-wip-20221008
xry111/update-glibc
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[6370fa6] | 1 | <sect1 id="ch06-flex">
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[793c2f7] | 2 | <title>Installing Flex-&flex-version;</title>
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[576e206] | 3 | <?dbhtml filename="flex.html" dir="chapter06"?>
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[6370fa6] | 4 |
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[b822811] | 5 | <screen>Estimated build time: &flex-time;
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[6403026] | 6 | Estimated required disk space: &flex-compsize;</screen>
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[3554fa3a] | 7 |
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[b7d9d404] | 8 | &aa-flex-shortdesc;
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[9b29852] | 9 | &aa-flex-dep;
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[73aedd1d] | 10 |
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| 11 | <sect2><title> </title><para> </para></sect2>
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| 12 |
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| 13 | <sect2>
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| 14 | <title>Installation of Flex</title>
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| 15 |
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| 16 | <para>Prepare Flex for compilation:</para>
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| 17 |
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| 18 | <screen><userinput>./configure --prefix=/usr</userinput></screen>
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| 19 |
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| 20 | <para>Compile the package:</para>
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| 21 |
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| 22 | <screen><userinput>make</userinput></screen>
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| 23 |
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| 24 | <para>This package has a test suite available which can perform a number of
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| 25 | checks to ensure it built correctly. Should you choose to run it, the
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| 26 | following command will do so:</para>
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| 27 |
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| 28 | <screen><userinput>make bigcheck</userinput></screen>
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| 29 |
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| 30 | <para>And install the package:</para>
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| 31 |
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| 32 | <screen><userinput>make install</userinput></screen>
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| 33 |
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| 34 | <para>There are some packages that expect to find the Lex library in
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| 35 | <filename>/usr/lib</filename>. Create a symlink to account for this:</para>
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| 36 |
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| 37 | <screen><userinput>ln -s libfl.a /usr/lib/libl.a</userinput></screen>
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| 38 |
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| 39 | <para>A few programs don't know about <userinput>flex</userinput> yet and try
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| 40 | to run its predecessor <userinput>lex</userinput>. To support those programs,
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| 41 | create a shell script named <filename>lex</filename> that calls
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| 42 | <userinput>flex</userinput> in Lex emulation mode:</para>
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| 43 |
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| 44 | <screen><userinput>cat > /usr/bin/lex << "EOF"</userinput>
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| 45 | #!/bin/sh
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| 46 | # Begin /usr/bin/lex
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| 47 |
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| 48 | exec /usr/bin/flex -l "$@"
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| 49 |
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| 50 | # End /usr/bin/lex
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| 51 | <userinput>EOF
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| 52 | chmod 755 /usr/bin/lex</userinput></screen>
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| 53 |
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| 54 | </sect2>
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[6370fa6] | 55 |
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| 56 | </sect1>
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[73aedd1d] | 57 |
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