1 | <sect2><title> </title><para> </para></sect2>
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2 |
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3 | <sect2>
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4 | <title>Glibc installation</title>
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5 |
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6 | <para>Glibc will check for the <filename>/etc/ld.so.conf</filename> file
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7 | and abort with an error if the file is missing, so we must create it:</para>
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8 |
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9 | <para><screen><userinput>touch /etc/ld.so.conf</userinput></screen></para>
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10 |
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11 | <para>The documentation that comes with Glibc recommends to build the package
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12 | not in the source directory but in a separate, dedicated directory:</para>
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13 |
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14 | <para><screen><userinput>mkdir ../glibc-build &&
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15 | cd ../glibc-build</userinput></screen></para>
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16 |
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17 | <para>Next, prepare Glibc to be compiled:</para>
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18 |
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19 | <para><screen><userinput>CFLAGS="-O2 -pipe" \
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20 | ../glibc-&glibc-version;/configure --prefix=/usr \
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21 | --disable-profile --enable-add-ons \
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22 | --libexecdir=/usr/bin \
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23 | --with-headers=/usr/include \
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24 | --mandir=/usr/share/man --infodir=/usr/share/info</userinput></screen></para>
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25 |
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26 | <para>The meaning of the configure options are:</para>
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27 |
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28 | <itemizedlist>
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29 | <listitem><para><userinput>--disable-profile</userinput>: This disables the
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30 | building of the libraries with profiling information. Omit this option if you
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31 | plan to do profiling.</para></listitem>
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32 |
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33 | <listitem><para><userinput>--enable-add-ons</userinput>: This enables any
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34 | add-ons that we installed with Glibc, in our case Linuxthreads.</para></listitem>
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35 |
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36 | <listitem><para><userinput>--libexecdir=/usr/bin</userinput>: This will
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37 | cause the <filename>pt_chown</filename> program to be installed in the
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38 | <filename>/usr/bin</filename> directory.</para></listitem>
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39 | </itemizedlist>
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40 |
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41 | <para>During this stage you will see the following warning:</para>
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42 |
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43 | <blockquote><screen>configure: warning:
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44 | *** These auxiliary programs are missing or too old: msgfmt
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45 | *** some features will be disabled.
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46 | *** Check the INSTALL file for required versions.</screen></blockquote>
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47 |
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48 | <para>The missing <filename>msgfmt</filename> program (from the Gettext
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49 | package, which we'll install later) won't cause any problems. The
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50 | <filename>msgfmt</filename> is used to generate the binary translation
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51 | files that can make your system talk in a different language. Because these
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52 | translation files have already been generated for you, there is no need for
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53 | <filename>msgfmt</filename>. You'd only need the program if you change the
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54 | translation source files (the <filename>*.po</filename> files in the
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55 | <filename class="directory">po</filename> subdirectory), which
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56 | would require you to regenerate the binary files.</para>
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57 |
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58 | <para>Because Glibc hasn't been installed yet, one of the tests that was
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59 | run by the configure script has failed. This test is supposed to test
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60 | <filename>gcc</filename> to determine whether a cross-compiler is installed.
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61 | However, Glibc needs to be already installed to run this test. Since the test
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62 | failed, the configure script assumes we have a cross-compiler. We override
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63 | that assumption by explicitly telling Glibc we're not cross-compiling.
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64 | Not doing this would have a couple of unintended side effects,
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65 | such as the timezone files not being installed.</para>
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66 |
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67 | <para><screen><userinput>echo "cross-compiling = no" > configparms</userinput></screen></para>
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68 |
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69 | <para>Continue with compiling the package:</para>
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70 |
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71 | <para><screen><userinput>make</userinput></screen></para>
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72 |
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73 | <para>We'll continue with installing the package. The Linuxthreads man
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74 | pages are not going to be installed at this point because it requires a
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75 | working Perl installation. We'll install Perl later on in this chapter,
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76 | and the man pages will be installed when Glibc is installed for the second
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77 | time at the end of this chapter.</para>
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78 |
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79 | <para><screen><userinput>make check</userinput></screen></para>
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80 |
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81 | <para><screen><userinput>make install</userinput></screen></para>
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82 |
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83 | <para>The locales (used by Glibc to make your Linux system talk in a different
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84 | language) weren't installed when you ran the previous command, so we have to
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85 | do that ourselves now:</para>
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86 |
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87 | <para><screen><userinput>make localedata/install-locales</userinput></screen></para>
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88 |
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89 | <para>An alternative to running the previous command is to install only those
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90 | locales which you need or want. This can be achieved using the localedef
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91 | command. Information on this can be found in the <filename>INSTALL</filename>
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92 | file in the <filename>glibc-&glibc-version;</filename> tree.</para>
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93 |
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94 | <para>To finish off the installation we'll reload Bash so it will use the new
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95 | <filename>libnss_*</filename> files. This will also get rid of the
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96 | <emphasis>I have no name!</emphasis> message in the command prompt:</para>
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97 |
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98 | <para><screen><userinput>exec /static/bin/bash --login</userinput></screen></para>
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99 |
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100 | </sect2>
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101 |
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