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suites strictly optional i.e. the default action for the average reader is to not run them. Closes 719. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@3172 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
84 lines
2.9 KiB
XML
84 lines
2.9 KiB
XML
<sect1 id="ch05-tcl" xreflabel="Tcl">
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<title>Installing Tcl-&tcl-version;</title>
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<?dbhtml filename="tcl.html" dir="chapter05"?>
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<para>The Tcl package contains the Tool Command Language.</para>
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<screen>Estimated build time: &tcl-time-tools;
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Estimated required disk space: &tcl-compsize-tools;</screen>
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&aa-tcl-down;
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&aa-tcl-dep;
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<sect2><title> </title><para> </para></sect2>
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<sect2>
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<title>Installation of Tcl</title>
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<para>This package and the next two are only installed to be able to run the
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test suites for GCC and Binutils. Installing three packages just for testing
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purposes may seem like overkill, but it is very reassuring, if not essential,
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to know that our most important tools are working properly. Even if you are
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not running the test suites here in this chapter as per our recommendation,
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these packages are still required for the test suites in the next
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chapter.</para>
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<para>Prepare Tcl for compilation:</para>
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<screen><userinput>cd unix
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./configure --prefix=/tools</userinput></screen>
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<para>Build the package:</para>
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<screen><userinput>make</userinput></screen>
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<para>As discussed earlier, we don't recommend running the test suites for the
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temporary tools here in this chapter. If you still want to run the Tcl test
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suite anyway, the following command will do so. However, you should be aware
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that the Tcl test suite is sometimes known to experience failures under certain
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host conditions that are not fully understood. Therefore, test suite failures
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here are not surprising, but are not considered critical:</para>
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<screen><userinput>TZ=UTC make test</userinput></screen>
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<para>The meaning of the make parameter:</para>
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<itemizedlist>
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<listitem><para><userinput>TZ=UTC</userinput>: This sets the time zone to
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Coordinated Universal Time (UTC) also known as Greenwich Mean Time (GMT), but
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only for the duration of the test suite run. This ensures the clock tests are
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exercised correctly. More information on the TZ environment variable will be
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given later on in <xref linkend="chapter07"/>.</para></listitem>
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</itemizedlist>
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<para>Sometimes, package test suites will give false failures. You can
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consult the LFS Wiki at <ulink url="http://wiki.linuxfromscratch.org/"/>
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to verify that these failures are normal. This applies to all tests
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throughout the book.</para>
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<para>Install the package:</para>
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<screen><userinput>make install</userinput></screen>
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<!-- HACK - Force some whitespace to appease tidy -->
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<literallayout></literallayout>
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<warning><para><emphasis>Do not remove</emphasis> the
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<filename>tcl&tcl-version;</filename> source directory yet, as the next package
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will need its internal headers.</para></warning>
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<!-- HACK - Force some whitespace to appease tidy -->
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<literallayout></literallayout>
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<para>Make a necessary symbolic link:</para>
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<screen><userinput>ln -s tclsh8.4 /tools/bin/tclsh</userinput></screen>
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</sect2>
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&aa-tcl-shortdesc;
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&aa-tcl-desc;
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</sect1>
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