[ab4fdfc] | 1 | <?xml version="1.0" encoding="UTF-8"?>
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[6732c094] | 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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[52d29f7] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[8dfc5c3] | 7 | <!ENTITY libpng-download-http "&sourceforge-dl;/libpng/libpng-&libpng-version;.tar.xz">
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[8042630] | 8 | <!ENTITY libpng-download-ftp " ">
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[dcf7fa27] | 9 | <!ENTITY libpng-md5sum "22b8362d16c3724eba9c1fb8d187320a">
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[715add11] | 10 | <!ENTITY libpng-size "1.0 MB">
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[dcf7fa27] | 11 | <!ENTITY libpng-buildsize "15 MB (with tests)">
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[063c012] | 12 | <!ENTITY libpng-time "0.1 SBU (add 0.5 SBU for tests)">
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[31ab0f7] | 13 |
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[dcf7fa27] | 14 | <!ENTITY apng-version "1.6.43">
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| 15 | <!ENTITY apng-md5sum "fc21268c9c583c5d2e7ead8a9ec17240">
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[4890200] | 16 |
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[8e22d1a] | 17 | <!ENTITY apng-patch
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[e3586b2] | 18 | "&sourceforge-dl;/sourceforge/libpng-apng/libpng-&apng-version;-apng.patch.gz">
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[52d29f7] | 19 | ]>
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| 20 |
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[f45b1953] | 21 | <sect1 id="libpng" xreflabel="libpng-&libpng-version;">
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[6b71f17] | 22 | <?dbhtml filename="libpng.html"?>
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| 23 |
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| 24 |
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[8042630] | 25 | <title>libpng-&libpng-version;</title>
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[6b71f17] | 26 |
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| 27 | <indexterm zone="libpng">
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[a98acfe7] | 28 | <primary sortas="a-libpng">libpng</primary>
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[6b71f17] | 29 | </indexterm>
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| 30 |
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[13d6079] | 31 | <sect2 role="package">
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[8042630] | 32 | <title>Introduction to libpng</title>
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[6b71f17] | 33 |
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[de05930] | 34 | <para>
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[31ab0f7] | 35 | The <application>libpng</application> package contains libraries used
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| 36 | by other programs for reading and writing PNG files. The PNG format
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| 37 | was designed as a replacement for GIF and, to a lesser extent, TIFF,
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| 38 | with many improvements and extensions and lack of patent problems.
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[de05930] | 39 | </para>
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[6b71f17] | 40 |
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[b9874725] | 41 | &lfs121_checked;
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[a263ccb3] | 42 |
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[6b71f17] | 43 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 44 | <itemizedlist spacing="compact">
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| 45 | <listitem>
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[b33c421] | 46 | <para>
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| 47 | Download (HTTP): <ulink url="&libpng-download-http;"/>
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| 48 | </para>
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[6b71f17] | 49 | </listitem>
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| 50 | <listitem>
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[b33c421] | 51 | <para>
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| 52 | Download (FTP): <ulink url="&libpng-download-ftp;"/>
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| 53 | </para>
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[6b71f17] | 54 | </listitem>
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| 55 | <listitem>
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[b33c421] | 56 | <para>
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| 57 | Download MD5 sum: &libpng-md5sum;
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| 58 | </para>
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[6b71f17] | 59 | </listitem>
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| 60 | <listitem>
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[b33c421] | 61 | <para>
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| 62 | Download size: &libpng-size;
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| 63 | </para>
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[6b71f17] | 64 | </listitem>
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| 65 | <listitem>
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[b33c421] | 66 | <para>
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| 67 | Estimated disk space required: &libpng-buildsize;
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| 68 | </para>
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[6b71f17] | 69 | </listitem>
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| 70 | <listitem>
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[b33c421] | 71 | <para>
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| 72 | Estimated build time: &libpng-time;
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| 73 | </para>
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[6b71f17] | 74 | </listitem>
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| 75 | </itemizedlist>
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| 76 |
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[57fc33d3] | 77 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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[b690f72] | 78 | <itemizedlist spacing="compact">
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[6b71f17] | 79 | <listitem>
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[de05930] | 80 | <para>
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[69c0160] | 81 | Recommended patch to include animated png functionality in
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[a38269c] | 82 | <application>libpng</application> (required to use the system
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[de05930] | 83 | <application>libpng</application> in
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[1d1e909] | 84 | <application>Firefox</application>,
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| 85 | <application>Seamonkey</application>, and
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[20f09631] | 86 | <application>Thunderbird</application>): <ulink url="&apng-patch;"/>
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[de05930] | 87 | </para>
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[6b71f17] | 88 | </listitem>
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[e3586b2] | 89 | <listitem>
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| 90 | <para>
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| 91 | Patch md5sum: &apng-md5sum;
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| 92 | </para>
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| 93 | </listitem>
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[57fc33d3] | 94 | </itemizedlist>
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[6b71f17] | 95 |
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| 96 | </sect2>
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| 97 |
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| 98 | <sect2 role="installation">
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[8042630] | 99 | <title>Installation of libpng</title>
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[6b71f17] | 100 |
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[de05930] | 101 | <para>
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[fca0f4cc] | 102 | If you want to patch libpng to support apng files, apply it here:
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[de05930] | 103 | </para>
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[d0c5ea3] | 104 |
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[e3586b2] | 105 | <screen><userinput>gzip -cd ../libpng-&apng-version;-apng.patch.gz | patch -p1</userinput></screen>
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[d0c5ea3] | 106 |
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[de05930] | 107 | <para>
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| 108 | Install <application>libpng</application> by running the following
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| 109 | commands:
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| 110 | </para>
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[6b71f17] | 111 |
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[3cf6041d] | 112 | <screen><userinput>./configure --prefix=/usr --disable-static &&
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[8042630] | 113 | make</userinput></screen>
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| 114 |
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[b33c421] | 115 | <para>
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| 116 | To test the results, issue: <command>make check</command>.
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| 117 | </para>
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[6b71f17] | 118 |
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[de05930] | 119 | <para>
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| 120 | Now, as the <systemitem class="username">root</systemitem> user:
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| 121 | </para>
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[6b71f17] | 122 |
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[8042630] | 123 | <screen role="root"><userinput>make install &&
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[a98acfe7] | 124 | mkdir -v /usr/share/doc/libpng-&libpng-version; &&
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| 125 | cp -v README libpng-manual.txt /usr/share/doc/libpng-&libpng-version;</userinput></screen>
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[31ab0f7] | 126 |
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[6b71f17] | 127 | </sect2>
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| 128 |
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[5eda319] | 129 | <sect2 role="commands">
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| 130 | <title>Command Explanations</title>
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| 131 |
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[de05930] | 132 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 133 | href="../../xincludes/static-libraries.xml"/>
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[b33c421] | 134 |
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[5eda319] | 135 | </sect2>
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| 136 |
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[6b71f17] | 137 | <sect2 role="content">
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| 138 | <title>Contents</title>
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| 139 |
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| 140 | <segmentedlist>
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| 141 | <segtitle>Installed Programs</segtitle>
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| 142 | <segtitle>Installed Libraries</segtitle>
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[9de6f91] | 143 | <segtitle>Installed Directories</segtitle>
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[6b71f17] | 144 |
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| 145 | <seglistitem>
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[de05930] | 146 | <seg>
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[7fe0ce3b] | 147 | libpng-config (symlink), libpng16-config, pngfix and png-fix-itxt
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[de05930] | 148 | </seg>
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| 149 | <seg>
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[20f09631] | 150 | libpng.so
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[de05930] | 151 | </seg>
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| 152 | <seg>
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[31ab0f7] | 153 | /usr/include/libpng16 and
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[de05930] | 154 | /usr/share/doc/libpng-&libpng-version;
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| 155 | </seg>
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[6b71f17] | 156 | </seglistitem>
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| 157 | </segmentedlist>
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| 158 |
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| 159 | <variablelist>
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| 160 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 161 | <?dbfo list-presentation="list"?>
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| 162 | <?dbhtml list-presentation="table"?>
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| 163 |
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[1a021f3c] | 164 | <varlistentry id="pngfix">
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| 165 | <term><command>pngfix</command></term>
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| 166 | <listitem>
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| 167 | <para>
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| 168 | tests, optimizes and optionally fixes the zlib header in PNG files.
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[4c24eb0a] | 169 | Optionally, when fixing, strips ancillary chunks from the file
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[1a021f3c] | 170 | </para>
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| 171 | <indexterm zone="libpng pngfix">
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| 172 | <primary sortas="b-pngfix">pngfix</primary>
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| 173 | </indexterm>
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| 174 | </listitem>
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| 175 | </varlistentry>
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| 176 |
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| 177 | <varlistentry id="png-fix-itxt">
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| 178 | <term><command>png-fix-itxt</command></term>
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| 179 | <listitem>
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| 180 | <para>
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| 181 | fixes PNG files that have an incorrect length field in the
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[4c24eb0a] | 182 | iTXt chunks
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[1a021f3c] | 183 | </para>
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| 184 | <indexterm zone="libpng png-fix-itxt">
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| 185 | <primary sortas="b-png-fix-itxt">png-fix-itxt</primary>
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| 186 | </indexterm>
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| 187 | </listitem>
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| 188 | </varlistentry>
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| 189 |
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[6b71f17] | 190 | <varlistentry id="libpng-config">
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| 191 | <term><command>libpng-config</command></term>
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| 192 | <listitem>
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[de05930] | 193 | <para>
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[31ab0f7] | 194 | is a shell script that provides configuration information
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| 195 | for applications wanting to use
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[4c24eb0a] | 196 | <application>libpng</application>
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[de05930] | 197 | </para>
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[31ab0f7] | 198 | <indexterm zone="libpng libpng-config">
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| 199 | <primary sortas="b-libpng-config">libpng-config</primary>
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[6b71f17] | 200 | </indexterm>
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| 201 | </listitem>
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| 202 | </varlistentry>
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| 203 |
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[31ab0f7] | 204 | <varlistentry id="libpng-lin">
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| 205 | <term><filename class="libraryfile">libpng.so</filename></term>
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[6b71f17] | 206 | <listitem>
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[de05930] | 207 | <para>
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[31ab0f7] | 208 | contain routines used to create and manipulate PNG
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[4c24eb0a] | 209 | format graphics files
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[de05930] | 210 | </para>
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[31ab0f7] | 211 | <indexterm zone="libpng libpng-lin">
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| 212 | <primary sortas="c-libpng">libpng.so</primary>
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[6b71f17] | 213 | </indexterm>
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| 214 | </listitem>
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| 215 | </varlistentry>
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[b33c421] | 216 |
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[6b71f17] | 217 | </variablelist>
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[b33c421] | 218 |
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[6b71f17] | 219 | </sect2>
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[b33c421] | 220 |
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[f45b1953] | 221 | </sect1>
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