1 | <sect1 id="ch-tools-tcl" xreflabel="Tcl">
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2 | <title>Installing Tcl-&tcl-version;</title>
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3 | <?dbhtml filename="tcl.html" dir="chapter05"?>
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4 |
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5 | <para>The Tcl package contains the Tool Command Language.</para>
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6 |
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7 | <screen>&buildtime; &tcl-time-tools;
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8 | &diskspace; &tcl-compsize-tools;</screen>
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9 |
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10 | &aa-tcl-down;
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11 | &aa-tcl-dep;
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12 |
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13 | <sect2><title> </title><para> </para></sect2>
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14 |
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15 | <sect2>
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16 | <title>Installation of Tcl</title>
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17 |
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18 | <para>This package and the next two are only installed to be able to run the
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19 | test suites for GCC and Binutils. Installing three packages just for testing
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20 | purposes may seem like overkill, but it is very reassuring, if not essential,
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21 | to know that our most important tools are working properly. Even if you are
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22 | not running the test suites here in this chapter as per our recommendation,
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23 | these packages are still required for the test suites in the next
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24 | chapter.</para>
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25 |
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26 | <para>Prepare Tcl for compilation:</para>
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27 |
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28 | <screen><userinput>cd unix
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29 | ./configure --prefix=/tools</userinput></screen>
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30 |
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31 | <para>Build the package:</para>
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32 |
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33 | <screen><userinput>make</userinput></screen>
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34 |
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35 | <para>As discussed earlier, we don't recommend running the test suites for the
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36 | temporary tools here in this chapter. If you still want to run the Tcl test
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37 | suite anyway, the following command will do so. However, you should be aware
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38 | that the Tcl test suite is sometimes known to experience failures under certain
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39 | host conditions that are not fully understood. Therefore, test suite failures
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40 | here are not surprising, but are not considered critical:</para>
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41 |
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42 | <screen><userinput>TZ=UTC make test</userinput></screen>
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43 |
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44 | <para>The meaning of the make parameter:</para>
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45 |
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46 | <itemizedlist>
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47 | <listitem><para><userinput>TZ=UTC</userinput>: This sets the time zone to
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48 | Coordinated Universal Time (UTC) also known as Greenwich Mean Time (GMT), but
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49 | only for the duration of the test suite run. This ensures the clock tests are
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50 | exercised correctly. More information on the TZ environment variable will be
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51 | given later on in <xref linkend="chapter07"/>.</para></listitem>
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52 | </itemizedlist>
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53 |
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54 | <para>Sometimes package test suites will give false failures. You can
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55 | consult the LFS Wiki at <ulink url="&wiki-root;"/> to verify that these
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56 | failures are normal. This applies to all tests throughout the book.</para>
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57 |
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58 | <para>Install the package:</para>
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59 |
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60 | <screen><userinput>make install</userinput></screen>
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61 |
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62 | <!-- HACK - Force some whitespace to appease tidy -->
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63 | <literallayout></literallayout>
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64 |
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65 | <warning><para><emphasis>Do not remove</emphasis> the
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66 | <filename>tcl&tcl-version;</filename> source directory yet, as the next package
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67 | will need its internal headers.</para></warning>
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68 |
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69 | <!-- HACK - Force some whitespace to appease tidy -->
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70 | <literallayout></literallayout>
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71 |
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72 | <para>Make a necessary symbolic link:</para>
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73 |
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74 | <screen><userinput>ln -s tclsh8.4 /tools/bin/tclsh</userinput></screen>
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75 |
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76 | </sect2>
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77 |
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78 | &aa-tcl-shortdesc;
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79 | &aa-tcl-desc;
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80 |
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81 | </sect1>
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82 |
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