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58 lines
2.1 KiB
XML
58 lines
2.1 KiB
XML
<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.</para>
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<para>Prepare Tcl to be compiled:</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>This package has a test suite available which can perform a number of
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checks to ensure it built correctly. However, the Tcl test suite in this
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chapter is known to experience failures under certain host conditions that are
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not fully understood. Therefore, test suite failures here are not surprising,
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but are not considered critical. Should you choose to run the test suite, the
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following command will do so:</para>
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<screen><userinput>TZ=UTC make test</userinput></screen>
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<para>The meaning of the make option:</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 is
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available 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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<important><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></important>
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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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