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| author | Andreas Rottmann <a.rottmann@gmx.at> | 2009-09-14 12:32:44 +0200 |
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| committer | Andreas Rottmann <a.rottmann@gmx.at> | 2009-09-14 12:32:44 +0200 |
| commit | fa095a4504cbe668e4244547e2c141597bea4ecf (patch) | |
| tree | 06135820a286ffec47804e75fbf8a147e92acd2e /doc/libunistring_15.html | |
Imported Upstream version 0.9.1upstream/0.9.1
Diffstat (limited to 'doc/libunistring_15.html')
| -rw-r--r-- | doc/libunistring_15.html | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/doc/libunistring_15.html b/doc/libunistring_15.html new file mode 100644 index 00000000..7c7ac329 --- /dev/null +++ b/doc/libunistring_15.html @@ -0,0 +1,232 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd"> +<html> +<!-- Created on July, 1 2009 by texi2html 1.78a --> +<!-- +Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author) + Karl Berry <karl@freefriends.org> + Olaf Bachmann <obachman@mathematik.uni-kl.de> + and many others. +Maintained by: Many creative people. +Send bugs and suggestions to <texi2html-bug@nongnu.org> + +--> +<head> +<title>GNU libunistring: 15. Using the library</title> + +<meta name="description" content="GNU libunistring: 15. Using the library"> +<meta name="keywords" content="GNU libunistring: 15. Using the library"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="texi2html 1.78a"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +pre.display {font-family: serif} +pre.format {font-family: serif} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: serif; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: serif; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.roman {font-family:serif; font-weight:normal;} +span.sansserif {font-family:sans-serif; font-weight:normal;} +ul.toc {list-style: none} +--> +</style> + + +</head> + +<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> + +<table cellpadding="1" cellspacing="1" border="0"> +<tr><td valign="middle" align="left">[<a href="libunistring_14.html#SEC54" title="Beginning of this chapter or previous chapter"> << </a>]</td> +<td valign="middle" align="left">[<a href="libunistring_16.html#SEC61" title="Next chapter"> >> </a>]</td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Top" title="Cover (top) of document">Top</a>]</td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Contents" title="Table of contents">Contents</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_18.html#SEC71" title="Index">Index</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_abt.html#SEC_About" title="About (help)"> ? </a>]</td> +</tr></table> + +<hr size="2"> +<a name="Using-the-library"></a> +<a name="SEC55"></a> +<h1 class="chapter"> <a href="libunistring.html#TOC55">15. Using the library</a> </h1> + +<p>This chapter explains some practical considerations, regarding the +installation and compiler options that are needed in order to use this +library. +</p> + +<hr size="6"> +<a name="Installation"></a> +<a name="SEC56"></a> +<h2 class="section"> <a href="libunistring.html#TOC56">15.1 Installation</a> </h2> + +<p>Before you can use the library, it must be installed. First, you have to +make sure all dependencies are installed. They are listed in the file +‘<tt>DEPENDENCIES</tt>’. +</p> +<a name="IDX770"></a> +<p>Then you can proceed to build and install the library, as described in the +file ‘<tt>INSTALL</tt>’. For installation on Windows systems, please refer to +the file ‘<tt>README.woe32</tt>’. +</p> +<hr size="6"> +<a name="Compiler-options"></a> +<a name="SEC57"></a> +<h2 class="section"> <a href="libunistring.html#TOC57">15.2 Compiler options</a> </h2> + +<p>Let's denote as <code>LIBUNISTRING_PREFIX</code> the value of the ‘<samp>--prefix</samp>’ +option that you passed to <code>configure</code> while installing this package. +If you didn't pass any ‘<samp>--prefix</samp>’ option, then the package is installed +in ‘<tt>/usr/local</tt>’. +</p> +<p>Let's denote as <code>LIBUNISTRING_INCLUDEDIR</code> the directory where the +include files were installed. This is usually the same as +<code>${LIBUNISTRING_PREFIX}/include</code>. Except that if you passed an +‘<samp>--includedir</samp>’ option to <code>configure</code>, it is the value of that +option. +</p> +<p>Let's further denote as <code>LIBUNISTRING_LIBDIR</code> the directory where +the library itself was installed. This is the value that you passed +with the ‘<samp>--libdir</samp>’ option to <code>configure</code>, or otherwise the +same as <code>${LIBUNISTRING_PREFIX}/lib</code>. Recall that when building +in 64-bit mode on a 64-bit GNU/Linux system that supports executables +in either 64-bit mode or 32-bit mode, you should have used the option +<code>--libdir=${LIBUNISTRING_PREFIX}/lib64</code>. +</p> +<a name="IDX771"></a> +<p>So that the compiler finds the include files, you have to pass it the +option <code>-I${LIBUNISTRING_INCLUDEDIR}</code>. +</p> +<p>So that the compiler finds the library during its linking pass, you have +to pass it the options <code>-L${LIBUNISTRING_LIBDIR} -lunistring</code>. +On some systems, in some configurations, you also have to pass options +needed for linking with <code>libiconv</code>. The autoconf macro +<code>gl_LIBUNISTRING</code> (see <a href="#SEC59">Autoconf macro</a>) deals with this +particularity. +</p> +<hr size="6"> +<a name="Include-files"></a> +<a name="SEC58"></a> +<h2 class="section"> <a href="libunistring.html#TOC58">15.3 Include files</a> </h2> + +<p>Most of the include files have been presented in the introduction, see +<a href="libunistring_1.html#SEC1">Introduction</a>, and subsequent detailed chapters. +</p> +<p>Another include file is <code><unistring/version.h></code>. It contains the +version number of the libunistring library. +</p> +<dl> +<dt><u>Macro:</u> int <b>_LIBUNISTRING_VERSION</b> +<a name="IDX772"></a> +</dt> +<dd><p>This constant contains the version of libunistring that is being used +at compile time. It encodes the major and minor parts of the version +number only. These parts are encoded in the form <code>(major<<8) + minor</code>. +</p></dd></dl> + +<dl> +<dt><u>Constant:</u> int <b>_libunistring_version</b> +<a name="IDX773"></a> +</dt> +<dd><p>This constant contains the version of libunistring that is being used +at run time. It encodes the major and minor parts of the version +number only. These parts are encoded in the form <code>(major<<8) + minor</code>. +</p></dd></dl> + +<p>It is possible that <code>_libunistring_version</code> is greater than +<code>_LIBUNISTRING_VERSION</code>. This can happen when you use +<code>libunistring</code> as a shared library, and a newer, binary +backward-compatible version has been installed after your program +that uses <code>libunistring</code> was installed. +</p> +<hr size="6"> +<a name="Autoconf-macro"></a> +<a name="SEC59"></a> +<h2 class="section"> <a href="libunistring.html#TOC59">15.4 Autoconf macro</a> </h2> + +<p>GNU Gnulib provides an autoconf macro that tests for the availability +of <code>libunistring</code>. It is contained in the Gnulib module +‘<samp>libunistring</samp>’, see +<a href="http://www.gnu.org/software/gnulib/MODULES.html#module=libunistring">http://www.gnu.org/software/gnulib/MODULES.html#module=libunistring</a>. +</p> +<a name="IDX774"></a> +<p>The macro is called <code>gl_LIBUNISTRING</code>. It searches for an installed +libunistring. If found, it sets and AC_SUBSTs <code>HAVE_LIBUNISTRING=yes</code> +and the <code>LIBUNISTRING</code> and <code>LTLIBUNISTRING</code> variables and augments +the <code>CPPFLAGS</code> variable, and defines the C macro +<code>HAVE_LIBUNISTRING</code> to 1. Otherwise, it sets and AC_SUBSTs +<code>HAVE_LIBUNISTRING=no</code> and <code>LIBUNISTRING</code> and <code>LTLIBUNISTRING</code> +to empty. +</p> +<p>The complexities that <code>gl_LIBUNISTRING</code> deals with are the following: +</p> +<ul> +<li> +On some operating systems, in some configurations, libunistring depends +on <code>libiconv</code>, and the options for linking with libiconv must be +mentioned explicitly on the link command line. + +</li><li> +GNU <code>libunistring</code>, if installed, is not necessarily already in the +search path (<code>CPPFLAGS</code> for the include file search path, +<code>LDFLAGS</code> for the library search path). + +</li><li> +GNU <code>libunistring</code>, if installed, is not necessarily already in the +run time library search path. To avoid the need for setting an environment +variable like <code>LD_LIBRARY_PATH</code>, the macro adds the appropriate +run time search path options to the <code>LIBUNISTRING</code> variable. This works +on most systems. +</li></ul> + +<hr size="6"> +<a name="Reporting-problems"></a> +<a name="SEC60"></a> +<h2 class="section"> <a href="libunistring.html#TOC60">15.5 Reporting problems</a> </h2> + +<p>If you encounter any problem, please don't hesitate to send a detailed +bug report to the <code>bug-libunistring@gnu.org</code> mailing list. You can +alternatively also use the bug tracker at the project page +<a href="https://savannah.gnu.org/projects/libunistring">https://savannah.gnu.org/projects/libunistring</a>. +</p> +<p>Please always include the version number of this library, and a short +description of your operating system and compilation environment with +corresponding version numbers. +</p> +<p>For problems that appear while building and installing <code>libunistring</code>, +for which you don't find the remedy in the ‘<tt>INSTALL</tt>’ file, please include +a description of the options that you passed to the ‘<samp>configure</samp>’ script. +</p> +<hr size="6"> +<table cellpadding="1" cellspacing="1" border="0"> +<tr><td valign="middle" align="left">[<a href="#SEC55" title="Beginning of this chapter or previous chapter"> << </a>]</td> +<td valign="middle" align="left">[<a href="libunistring_16.html#SEC61" title="Next chapter"> >> </a>]</td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Top" title="Cover (top) of document">Top</a>]</td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Contents" title="Table of contents">Contents</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_18.html#SEC71" title="Index">Index</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_abt.html#SEC_About" title="About (help)"> ? </a>]</td> +</tr></table> +<p> + <font size="-1"> + This document was generated by <em>Bruno Haible</em> on <em>July, 1 2009</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>. + </font> + <br> + +</p> +</body> +</html> |