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<?xml version="1.0" encoding="ISO-8859-1"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /><link rel="SHORTCUT ICON" href="/favicon.ico" /><style type="text/css">TD {font-family: Verdana,Arial,Helvetica}BODY {font-family: Verdana,Arial,Helvetica; margin-top: 2em; margin-left: 0em; margin-right: 0em}H1 {font-family: Verdana,Arial,Helvetica}H2 {font-family: Verdana,Arial,Helvetica}H3 {font-family: Verdana,Arial,Helvetica}A:link, A:visited, A:active { text-decoration: underline }</style><title>FAQ</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="epatents.png" alt="Action against software patents" /></a></td><td width="180"><a href="http://www.gnome.org/"><img src="gnome2.png" alt="Gnome2 Logo" /></a><a href="http://www.w3.org/Status"><img src="w3c.png" alt="W3C Logo" /></a><a href="http://www.redhat.com/"><img src="redhat.gif" alt="Red Hat Logo" /></a><div align="left"><a href="http://xmlsoft.org/"><img src="Libxml2-Logo-180x168.gif" alt="Made with Libxml2 Logo" /></a></div></td><td><table border="0" width="90%" cellpadding="2" cellspacing="0" align="center" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3" bgcolor="#fffacd"><tr><td align="center"><h1>The XML C parser and toolkit of Gnome</h1><h2>FAQ</h2></td></tr></table></td></tr></table></td></tr></table><table border="0" cellpadding="4" cellspacing="0" width="100%" align="center"><tr><td bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="2" width="100%"><tr><td valign="top" width="200" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%" 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href="ftp://xmlsoft.org/">FTP</a></li><li><a href="http://www.zlatkovic.com/projects/libxml/">Windows binaries</a></li><li><a href="http://www.blastwave.org/packages.php/libxml2">Solaris binaries</a></li><li><a href="http://www.zveno.com/open_source/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://sourceforge.net/projects/libxml2-pas/">Pascal bindings</a></li><li><a href="http://bugzilla.gnome.org/buglist.cgi?product=libxml2">Bug Tracker</a></li></ul></td></tr></table></td></tr></table></td><td valign="top" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%"><tr><td><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table border="0" cellpadding="3" cellspacing="1" width="100%"><tr><td bgcolor="#fffacd"><p>Table of Contents:</p><ul><li><a href="FAQ.html#License">License(s)</a></li> <li><a href="FAQ.html#Installati">Installation</a></li> <li><a href="FAQ.html#Compilatio">Compilation</a></li> <li><a href="FAQ.html#Developer">Developer corner</a></li></ul><h3><a name="License" id="License">License</a>(s)</h3><ol><li><em>Licensing Terms for libxml</em> <p>libxml2 is released under the <a href="http://www.opensource.org/licenses/mit-license.html">MIT License</a>; see the file Copyright in the distribution for the precise wording</p> </li> <li><em>Can I embed libxml2 in a proprietary application ?</em> <p>Yes. The MIT License allows you to keep proprietary the changes you made to libxml, but it would be graceful to send-back bug fixes and improvements as patches for possible incorporation in the main development tree.</p> </li></ol><h3><a name="Installati" id="Installati">Installation</a></h3><ol><li><strong><span style="background-color: #FF0000">Do Not Use libxml1</span></strong>, use libxml2</li> <li><em>Where can I get libxml</em> ? <p>The original distribution comes from <a href="ftp://rpmfind.net/pub/libxml/">rpmfind.net</a> or <a href="ftp://ftp.gnome.org/pub/GNOME/sources/libxml2/2.6/">gnome.org</a></p> <p>Most Linux and BSD distributions include libxml, this is probably the safer way for end-users to use libxml.</p> <p>David Doolin provides precompiled Windows versions at <a href="http://www.ce.berkeley.edu/~doolin/code/libxmlwin32/ ">http://www.ce.berkeley.edu/~doolin/code/libxmlwin32/</a></p> </li> <li><em>I see libxml and libxml2 releases, which one should I install ?</em> <ul><li>If you are not constrained by backward compatibility issues with existing applications, install libxml2 only</li> <li>If you are not doing development, you can safely install both. Usually the packages <a href="http://rpmfind.net/linux/RPM/libxml.html">libxml</a> and <a href="http://rpmfind.net/linux/RPM/libxml2.html">libxml2</a> are compatible (this is not the case for development packages).</li> <li>If you are a developer and your system provides separate packaging for shared libraries and the development components, it is possible to install libxml and libxml2, and also <a href="http://rpmfind.net/linux/RPM/libxml-devel.html">libxml-devel</a> and <a href="http://rpmfind.net/linux/RPM/libxml2-devel.html">libxml2-devel</a> too for libxml2 >= 2.3.0</li> <li>If you are developing a new application, please develop against libxml2(-devel)</li> </ul></li> <li><em>I can't install the libxml package, it conflicts with libxml0</em> <p>You probably have an old libxml0 package used to provide the shared library for libxml.so.0, you can probably safely remove it. The libxml packages provided on <a href="ftp://rpmfind.net/pub/libxml/">rpmfind.net</a> provide libxml.so.0</p> </li> <li><em>I can't install the libxml(2) RPM package due to failed dependencies</em> <p>The most generic solution is to re-fetch the latest src.rpm , and rebuild it locally with</p> <p><code>rpm --rebuild libxml(2)-xxx.src.rpm</code>.</p> <p>If everything goes well it will generate two binary rpm packages (one providing the shared libs and xmllint, and the other one, the -devel package, providing includes, static libraries and scripts needed to build applications with libxml(2)) that you can install locally.</p> </li></ol><h3><a name="Compilatio" id="Compilatio">Compilation</a></h3><ol><li><em>What is the process to compile libxml2 ?</em> <p>As most UNIX libraries libxml2 follows the "standard":</p> <p><code>gunzip -c xxx.tar.gz | tar xvf -</code></p> <p><code>cd libxml-xxxx</code></p> <p><code>./configure --help</code></p> <p>to see the options, then the compilation/installation proper</p> <p><code>./configure [possible options]</code></p> <p><code>make</code></p> <p><code>make install</code></p> <p>At that point you may have to rerun ldconfig or a similar utility to update your list of installed shared libs.</p> </li> <li><em>What other libraries are needed to compile/install libxml2 ?</em> <p>Libxml2 does not require any other library, the normal C ANSI API should be sufficient (please report any violation to this rule you may find).</p> <p>However if found at configuration time libxml2 will detect and use the following libs:</p> <ul><li><a href="http://www.info-zip.org/pub/infozip/zlib/">libz</a> : a highly portable and available widely compression library.</li> <li>iconv: a powerful character encoding conversion library. It is included by default in recent glibc libraries, so it doesn't need to be installed specifically on Linux. It now seems a <a href="http://www.opennc.org/onlinepubs/7908799/xsh/iconv.html">part of the official UNIX</a> specification. Here is one <a href="http://www.gnu.org/software/libiconv/">implementation of the library</a> which source can be found <a href="ftp://ftp.ilog.fr/pub/Users/haible/gnu/">here</a>.</li> </ul></li> <li><em>Make check fails on some platforms</em> <p>Sometimes the regression tests' results don't completely match the value produced by the parser, and the makefile uses diff to print the delta. On some platforms the diff return breaks the compilation process; if the diff is small this is probably not a serious problem.</p> <p>Sometimes (especially on Solaris) make checks fail due to limitations in make. Try using GNU-make instead.</p> </li> <li><em>I use the CVS version and there is no configure script</em> <p>The configure script (and other Makefiles) are generated. Use the autogen.sh script to regenerate the configure script and Makefiles, like:</p> <p><code>./autogen.sh --prefix=/usr --disable-shared</code></p> </li> <li><em>I have troubles when running make tests with gcc-3.0</em> <p>It seems the initial release of gcc-3.0 has a problem with the optimizer which miscompiles the URI module. Please use another compiler.</p> </li></ol><h3><a name="Developer" id="Developer">Developer</a> corner</h3><ol><li><em>Troubles compiling or linking programs using libxml2</em> <p>Usually the problem comes from the fact that the compiler doesn't get the right compilation or linking flags. There is a small shell script <code>xml2-config</code> which is installed as part of libxml2 usual install process which provides those flags. Use</p> <p><code>xml2-config --cflags</code></p> <p>to get the compilation flags and</p> <p><code>xml2-config --libs</code></p> <p>to get the linker flags. Usually this is done directly from the Makefile as:</p> <p><code>CFLAGS=`xml2-config --cflags`</code></p> <p><code>LIBS=`xml2-config --libs`</code></p> </li> <li><em>I want to install my own copy of libxml2 in my home directory and link my programs against it, but it doesn't work</em> <p>There are many different ways to accomplish this. Here is one way to do this under Linux. Suppose your home directory is <code>/home/user. </code>Then:</p> <ul><li>Create a subdirectory, let's call it <code>myxml</code></li> <li>unpack the libxml2 distribution into that subdirectory</li> <li>chdir into the unpacked distribution (<code>/home/user/myxml/libxml2 </code>)</li> <li>configure the library using the "<code>--prefix</code>" switch, specifying an installation subdirectory in <code>/home/user/myxml</code>, e.g. <p><code>./configure --prefix /home/user/myxml/xmlinst</code> {other configuration options}</p></li> <li>now run <code>make</code> followed by <code>make install</code></li> <li>At this point, the installation subdirectory contains the complete "private" include files, library files and binary program files (e.g. xmllint), located in <p> <code>/home/user/myxml/xmlinst/lib, /home/user/myxml/xmlinst/include </code> and <code> /home/user/myxml/xmlinst/bin</code></p>⌨️ 快捷键说明
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