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fdc7b924bb
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2774 af4574ff-66df-0310-9fd7-8a98e5e911e0
120 lines
3.9 KiB
XML
120 lines
3.9 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY libpng-download-http "http://prdownloads.sourceforge.net/libpng/libpng-&libpng-version;.tar.bz2">
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<!ENTITY libpng-download-ftp " ">
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<!ENTITY libpng-md5 "21030102f99f81c37276403e5956d198">
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<!ENTITY libpng-size "371 KB">
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<!ENTITY libpng-buildsize "5.6 MB">
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<!ENTITY libpng-time "0.2 SBU">
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]>
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<sect1 id="libpng" xreflabel="libpng-&libpng-version;">
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<?dbhtml filename="libpng.html"?>
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<title>libpng-&libpng-version;</title>
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<sect2>
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<title>Introduction to <application>libpng</application></title>
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<para>The <application>libpng</application> package contains libraries used
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by other programs for reading and writing <acronym>PNG</acronym> files.</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Download (HTTP): <ulink
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url="&libpng-download-http;"/></para></listitem>
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<listitem><para>Download (FTP): <ulink
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url="&libpng-download-ftp;"/></para></listitem>
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<listitem><para>MD5 Sum: &libpng-md5;</para></listitem>
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<listitem><para>Download size: &libpng-size;</para></listitem>
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<listitem><para>Estimated Disk space required:
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&libpng-buildsize;</para></listitem>
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<listitem><para>Estimated build time:
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&libpng-time;</para></listitem></itemizedlist>
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</sect3>
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<sect3><title>Additional downloads</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Required Patch to explicitly link libpng against system libraries: <ulink
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url="&patch-root;/libpng-&libpng-version;-link_to_proper_libs-1.patch"/></para></listitem>
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</itemizedlist></sect3>
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</sect2>
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<sect2>
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<title>Installation of <application>libpng</application></title>
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<para>Install <application>libpng</application> by running the following
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commands:</para>
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<screen><userinput><command>patch -Np1 -i ../libpng-&libpng-version;-link_to_proper_libs-1.patch &&
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make prefix=/usr ZLIBINC=/usr/include \
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ZLIBLIB=/usr/lib -f scripts/makefile.linux &&
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make prefix=/usr install -f scripts/makefile.linux</command></userinput></screen>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><parameter>ZLIBINC=/usr/include ZLIBLIB=/usr/lib</parameter>: This
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forces <application>libpng</application> to look for the
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<application>zlib</application> includes and libraries where they are
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installed.</para>
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<para><parameter>-f scripts/makefile.linux</parameter>: This points
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<command>make</command> at the <application>Linux</application> version of the
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<filename>Makefile</filename> as <application>libpng</application> doesn't use
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an <application>autoconf</application> routine. Instead it has various
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<filename>Makefile</filename>s for different platforms.</para>
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</sect2>
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<sect2>
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<title>Configuring <application>libpng</application></title>
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<sect3><title>Configuration Information</title>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../../lib-config.xml"/>
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</sect3>
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</sect2>
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<sect2>
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<title>Contents</title>
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<para>The <application>libpng</application> package contains
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<filename class="libraryfile">libpng</filename> libraries and
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<command>libpng-config</command>.</para>
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</sect2>
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<sect2><title>Description</title>
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<sect3><title>libpng libraries</title>
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<para>The <filename class="libraryfile">libpng</filename> libraries are
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a collection of routines used to
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create and manipulate <acronym>PNG</acronym> format graphics files. The
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<acronym>PNG</acronym> format was designed as a
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replacement for <acronym>GIF</acronym> and, to a lesser extent,
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<acronym>TIFF</acronym>, with many improvements and extensions and lack of
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patent problems.</para></sect3>
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<sect3><title>libpng-config</title>
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<para><command>libpng-config</command> provides configuration info for
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<application>libpng</application>.</para></sect3>
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</sect2>
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</sect1>
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