1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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5 | %general-entities;
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6 | ]>
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7 |
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8 | <sect1 id="ch-system-ninja" role="wrap">
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9 | <?dbhtml filename="ninja.html"?>
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10 |
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11 | <sect1info condition="script">
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12 | <productname>ninja</productname>
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13 | <productnumber>&ninja-version;</productnumber>
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14 | <address>&ninja-url;</address>
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15 | </sect1info>
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16 |
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17 | <title>Ninja-&ninja-version;</title>
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18 |
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19 | <indexterm zone="ch-system-ninja">
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20 | <primary sortas="a-Ninja">Ninja</primary>
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21 | </indexterm>
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22 |
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23 | <sect2 role="package">
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24 | <title/>
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25 |
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26 | <para>Ninja is a small build system with a focus on speed.</para>
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27 |
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28 | <segmentedlist>
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29 | <segtitle>&buildtime;</segtitle>
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30 | <segtitle>&diskspace;</segtitle>
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31 |
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32 | <seglistitem>
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33 | <seg>&ninja-fin-sbu;</seg>
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34 | <seg>&ninja-fin-du;</seg>
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35 | </seglistitem>
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36 | </segmentedlist>
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37 |
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38 | <tip revision="sysv">
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39 | <para>This section is not strictly required for LFS if not using
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40 | systemd. On the other hand, ninja associated to meson makes
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41 | a powerful build system combination,
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42 | which is expected to be used more and more often. It is required for
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43 | several packages in <ulink url="&blfs-book;">the BLFS
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44 | book</ulink>.</para>
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45 | </tip>
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46 |
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47 | </sect2>
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48 |
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49 | <sect2 role="installation">
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50 | <title>Installation of Ninja</title>
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51 |
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52 | <para>When run, ninja normally runs a maximum number of processes
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53 | in parallel. By default this is the number of cores on the system
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54 | plus two. In some cases this can overheat a CPU or run a system out
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55 | of memory. If run from the command line, passing a -jN parameter
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56 | will limit the number of parallel processes, but some packages
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57 | embed the execution of ninja and do not pass a -j parameter.</para>
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58 |
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59 | <para>Using the <emphasis>optional</emphasis> procedure below allows a user to
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60 | limit the number of parallel processes via an environment variable,
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61 | NINJAJOBS. <emphasis role="bold">For example</emphasis>, setting:
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62 |
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63 | <screen>export NINJAJOBS=4</screen>
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64 |
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65 | will limit ninja to four parallel processes.</para>
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66 |
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67 | <para>If desired, add the capability to use the environment variable
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68 | NINJAJOBS by running:</para>
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69 |
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70 | <screen><userinput remap="pre">sed -i '/int Guess/a \
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71 | int j = 0;\
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72 | char* jobs = getenv( "NINJAJOBS" );\
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73 | if ( jobs != NULL ) j = atoi( jobs );\
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74 | if ( j > 0 ) return j;\
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75 | ' src/ninja.cc</userinput></screen>
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76 |
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77 | <para>Build Ninja with:</para>
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78 |
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79 | <screen><userinput remap="configure">python3 configure.py --bootstrap</userinput></screen>
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80 |
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81 | <variablelist>
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82 | <title>The meaning of the build option:</title>
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83 |
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84 | <varlistentry>
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85 | <term><parameter>--bootstrap</parameter></term>
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86 | <listitem>
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87 | <para>This parameter forces ninja to rebuild itself for the current
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88 | system.</para>
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89 | </listitem>
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90 | </varlistentry>
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91 |
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92 | </variablelist>
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93 |
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94 | <para>To test the results, issue:</para>
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95 |
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96 | <screen><userinput remap="test">./ninja ninja_test
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97 | ./ninja_test --gtest_filter=-SubprocessTest.SetWithLots</userinput></screen>
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98 |
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99 | <para>Install the package:</para>
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100 |
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101 | <screen><userinput remap="install">install -vm755 ninja /usr/bin/
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102 | install -vDm644 misc/bash-completion /usr/share/bash-completion/completions/ninja
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103 | install -vDm644 misc/zsh-completion /usr/share/zsh/site-functions/_ninja</userinput></screen>
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104 |
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105 | </sect2>
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106 |
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107 | <sect2 id="contents-ninja" role="content">
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108 | <title>Contents of Ninja</title>
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109 |
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110 | <segmentedlist>
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111 | <segtitle>Installed programs</segtitle>
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112 |
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113 | <seglistitem>
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114 | <seg>ninja</seg>
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115 | </seglistitem>
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116 | </segmentedlist>
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117 | <variablelist>
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118 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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119 | <?dbfo list-presentation="list"?>
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120 | <?dbhtml list-presentation="table"?>
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121 |
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122 | <varlistentry id="ninja">
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123 | <term><command>ninja</command></term>
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124 | <listitem>
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125 | <para>is the Ninja build system</para>
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126 | <indexterm zone="ch-system-ninja ninja">
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127 | <primary sortas="b-ninja">ninja</primary>
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128 | </indexterm>
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129 | </listitem>
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130 | </varlistentry>
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131 |
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132 | </variablelist>
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133 |
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134 | </sect2>
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135 |
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136 | </sect1>
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137 |
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