1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.4/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 | <!ENTITY libpng-download-http "http://prdownloads.sourceforge.net/libpng/libpng-&libpng-version;.tar.bz2">
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8 | <!ENTITY libpng-download-ftp " ">
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9 | <!ENTITY libpng-md5sum "00cea4539bea4bd34cbf8b82ff9589cd">
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10 | <!ENTITY libpng-size "376 KB">
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11 | <!ENTITY libpng-buildsize "5.75 MB">
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12 | <!ENTITY libpng-time "0.13 SBU">
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13 | ]>
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14 |
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15 | <sect1 id="libpng" xreflabel="libpng-&libpng-version;">
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16 | <?dbhtml filename="libpng.html"?>
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17 |
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18 | <sect1info>
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19 | <othername>$LastChangedBy$</othername>
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20 | <date>$Date$</date>
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21 | <keywordset>
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22 | <keyword role="package">libpng-&libpng-version;.tar</keyword>
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23 | <keyword role="ftpdir">libpng</keyword>
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24 | </keywordset>
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25 | </sect1info>
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26 |
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27 | <title>Libpng-&libpng-version;</title>
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28 |
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29 | <indexterm zone="libpng">
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30 | <primary sortas="a-Libpng">Libpng</primary>
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31 | </indexterm>
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32 |
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33 | <sect2 role="package">
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34 | <title>Introduction to Libpng</title>
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35 |
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36 | <para>The <application>libpng</application> package contains libraries used
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37 | by other programs for reading and writing PNG files.</para>
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38 |
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39 | <bridgehead renderas="sect3">Package Information</bridgehead>
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40 | <itemizedlist spacing="compact">
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41 | <listitem>
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42 | <para>Download (HTTP): <ulink url="&libpng-download-http;"/></para>
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43 | </listitem>
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44 | <listitem>
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45 | <para>Download (FTP): <ulink url="&libpng-download-ftp;"/></para>
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46 | </listitem>
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47 | <listitem>
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48 | <para>Download MD5 sum: &libpng-md5sum;</para>
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49 | </listitem>
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50 | <listitem>
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51 | <para>Download size: &libpng-size;</para>
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52 | </listitem>
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53 | <listitem>
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54 | <para>Estimated disk space required: &libpng-buildsize;</para>
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55 | </listitem>
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56 | <listitem>
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57 | <para>Estimated build time: &libpng-time;</para>
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58 | </listitem>
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59 | </itemizedlist>
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60 |
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61 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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62 | <itemizedlist spacing='compact'>
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63 | <listitem>
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64 | <para>Required Patch to explicitly link
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65 | <application>libpng</application> against system libraries: <ulink
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66 | url="&patch-root;/libpng-&libpng-version;-link_to_proper_libs-1.patch"/></para>
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67 | </listitem>
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68 | </itemizedlist>
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69 |
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70 | </sect2>
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71 |
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72 | <sect2 role="installation">
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73 | <title>Installation of Libpng</title>
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74 |
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75 | <para>Install <application>libpng</application> by running the following
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76 | commands:</para>
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77 |
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78 | <screen><userinput>patch -Np1 -i ../libpng-&libpng-version;-link_to_proper_libs-1.patch &&
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79 | make prefix=/usr ZLIBINC= \
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80 | ZLIBLIB= -f scripts/makefile.linux</userinput></screen>
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81 |
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82 | <para>To test the results, issue: <command>make -f scripts/makefile.linux
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83 | test</command>.</para>
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84 |
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85 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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86 |
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87 | <screen role="root"><userinput>make prefix=/usr install -f scripts/makefile.linux</userinput></screen>
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88 |
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89 | </sect2>
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90 |
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91 | <sect2 role="commands">
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92 | <title>Command Explanations</title>
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93 |
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94 | <para><parameter>ZLIBINC=; ZLIBLIB=</parameter>: This
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95 | forces <application>libpng</application> to look for the
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96 | <application>Zlib</application> includes and libraries in the default locations
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97 | (<filename class='directory'>/usr/include</filename> and
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98 | <filename class='directory'>/usr/lib</filename> respectively).</para>
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99 |
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100 | <para><parameter>-f scripts/makefile.linux</parameter>: This points
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101 | <command>make</command> at the <application>Linux</application> version of the
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102 | <filename>Makefile</filename> as <application>libpng</application> doesn't use
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103 | an <application>Autoconf</application> routine. Instead, it has various
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104 | <filename>Makefile</filename>s for different platforms.</para>
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105 |
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106 | </sect2>
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107 |
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108 | <sect2 role="configuration">
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109 | <title>Configuring Libpng</title>
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110 |
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111 | <sect3>
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112 | <title>Configuration Information</title>
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113 |
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114 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../../lib-config.xml"/>
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115 |
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116 | </sect3>
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117 |
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118 | </sect2>
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119 |
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120 | <sect2 role="content">
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121 | <title>Contents</title>
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122 |
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123 | <segmentedlist>
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124 | <segtitle>Installed Programs</segtitle>
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125 | <segtitle>Installed Libraries</segtitle>
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126 | <segtitle>Installed Directory</segtitle>
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127 |
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128 | <seglistitem>
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129 | <seg>libpng-config and libpng12-config</seg>
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130 | <seg>libpng.[so,a] and libpng12.[so,a]</seg>
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131 | <seg>/usr/include/libpng12</seg>
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132 | </seglistitem>
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133 | </segmentedlist>
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134 |
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135 | <variablelist>
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136 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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137 | <?dbfo list-presentation="list"?>
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138 | <?dbhtml list-presentation="table"?>
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139 |
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140 | <varlistentry id="libpng-config">
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141 | <term><command>libpng-config</command></term>
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142 | <listitem>
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143 | <para>is a symlink to <command>libpng12-config</command>.</para>
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144 | <indexterm zone="libpng libpng-config">
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145 | <primary sortas="g-libpng-config">libpng-config</primary>
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146 | </indexterm>
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147 | </listitem>
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148 | </varlistentry>
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149 |
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150 | <varlistentry id="libpng12-config">
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151 | <term><command>libpng12-config</command></term>
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152 | <listitem>
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153 | <para>provides configuration information for
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154 | <application>libpng</application>.</para>
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155 | <indexterm zone="libpng libpng12-config">
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156 | <primary sortas="b-libpng12-config">libpng12-config</primary>
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157 | </indexterm>
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158 | </listitem>
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159 | </varlistentry>
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160 |
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161 | <varlistentry id="libpng12">
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162 | <term><filename class='libraryfile'>libpng.[so,a] and
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163 | libpng12.[so,a]</filename></term>
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164 | <listitem>
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165 | <para>are a collection of routines used to create and manipulate PNG
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166 | format graphics files. The PNG format was designed as a replacement for
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167 | GIF and, to a lesser extent, TIFF, with many improvements and extensions
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168 | and lack of patent problems.</para>
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169 | <indexterm zone="libpng libpng12">
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170 | <primary sortas="c-libpng">libpng.[so,a]</primary>
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171 | </indexterm>
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172 | </listitem>
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173 | </varlistentry>
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174 |
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175 | </variablelist>
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176 |
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177 | </sect2>
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178 |
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179 | </sect1>
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