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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="en-US" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
<head>
<title>ReadMe for ICU 4.8.1.1</title>
<meta name="COPYRIGHT" content=
"Copyright (c) 1997-2011 IBM Corporation and others. All Rights Reserved." />
<meta name="KEYWORDS" content=
"ICU; International Components for Unicode; ICU4C; what's new; readme; read me; introduction; downloads; downloading; building; installation;" />
<meta name="DESCRIPTION" content=
"The introduction to the International Components for Unicode with instructions on building, installation, usage and other information about ICU." />
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii" />
<link type="text/css" href="./icu4c.css" rel="stylesheet"/>
</head>
<body class="draft">
<h1>International Components for Unicode<br />
<abbr title="International Components for Unicode">ICU</abbr> 4.8.1.1 ReadMe</h1>
<p>Last updated: 2011-Sep-20<br />
Copyright © 1997-2011 International Business Machines Corporation and
others. All Rights Reserved.</p>
<!-- Remember that there is a copyright at the end too -->
<hr />
<h2 class="TOC">Table of Contents</h2>
<ul class="TOC">
<li><a href="#Introduction">Introduction</a></li>
<li><a href="#GettingStarted">Getting Started</a></li>
<li><a href="#News">What Is New In This release?</a></li>
<li><a href="#Download">How To Download the Source Code</a></li>
<li><a href="#SourceCode">ICU Source Code Organization</a></li>
<li>
<a href="#HowToBuild">How To Build And Install ICU</a>
<ul >
<li><a href="#RecBuild">Recommended Build Options</a></li>
<li><a href="#HowToBuildWindows">Windows</a></li>
<li><a href="#HowToBuildCygwin">Cygwin</a></li>
<li><a href="#HowToBuildUNIX">UNIX</a></li>
<li><a href="#HowToBuildZOS">z/OS (os/390)</a></li>
<li><a href="#HowToBuildOS400">IBM i family (IBM i, i5/OS, OS/400)</a></li>
<li><a href="#HowToCrossCompileICU">How to Cross Compile ICU</a></li>
</ul>
</li>
<li><a href="#HowToPackage">How To Package ICU</a></li>
<li>
<a href="#ImportantNotes">Important Notes About Using ICU</a>
<ul >
<li><a href="#ImportantNotesMultithreaded">Using ICU in a Multithreaded
Environment</a></li>
<li><a href="#ImportantNotesWindows">Windows Platform</a></li>
<li><a href="#ImportantNotesUNIX">UNIX Type Platforms</a></li>
</ul>
</li>
<li>
<a href="#PlatformDependencies">Platform Dependencies</a>
<ul >
<li><a href="#PlatformDependenciesNew">Porting To A New
Platform</a></li>
<li><a href="#PlatformDependenciesImpl">Platform Dependent
Implementations</a></li>
</ul>
</li>
</ul>
<hr />
<h2><a name="Introduction" href="#Introduction" id=
"Introduction">Introduction</a></h2>
<p>Today's software market is a global one in which it is desirable to
develop and maintain one application (single source/single binary) that
supports a wide variety of languages. The International Components for
Unicode (ICU) libraries provide robust and full-featured Unicode services on
a wide variety of platforms to help this design goal. The ICU libraries
provide support for:</p>
<ul>
<li>The latest version of the Unicode standard</li>
<li>Character set conversions with support for over 220 codepages</li>
<li>Locale data for more than 250 locales</li>
<li>Language sensitive text collation (sorting) and searching based on the
Unicode Collation Algorithm (=ISO 14651)</li>
<li>Regular expression matching and Unicode sets</li>
<li>Transformations for normalization, upper/lowercase, script
transliterations (50+ pairs)</li>
<li>Resource bundles for storing and accessing localized information</li>
<li>Date/Number/Message formatting and parsing of culture specific
input/output formats</li>
<li>Calendar specific date and time manipulation</li>
<li>Complex text layout for Arabic, Hebrew, Indic and Thai</li>
<li>Text boundary analysis for finding characters, word and sentence
boundaries</li>
</ul>
<p>ICU has a sister project ICU4J that extends the internationalization
capabilities of Java to a level similar to ICU. The ICU C/C++ project is also
called ICU4C when a distinction is necessary.</p>
<h2><a name="GettingStarted" href="#GettingStarted" id=
"GettingStarted">Getting started</a></h2>
<p>This document describes how to build and install ICU on your machine. For
other information about ICU please see the following table of links.<br />
The ICU homepage also links to related information about writing
internationalized software.</p>
<table class="docTable" summary="These are some useful links regarding ICU and internationalization in general.">
<caption>
Here are some useful links regarding ICU and internationalization in
general.
</caption>
<tr>
<td>ICU, ICU4C & ICU4J Homepage</td>
<td><a href=
"http://icu-project.org/">http://icu-project.org/</a></td>
</tr>
<tr>
<td>FAQ - Frequently Asked Questions about ICU</td>
<td><a href=
"http://userguide.icu-project.org/icufaq">http://userguide.icu-project.org/icufaq</a></td>
</tr>
<tr>
<td>ICU User's Guide</td>
<td><a href=
"http://userguide.icu-project.org/">http://userguide.icu-project.org/</a></td>
</tr>
<tr>
<td>How To Use ICU</td>
<td><a href="http://userguide.icu-project.org/howtouseicu">http://userguide.icu-project.org/howtouseicu</a></td>
</tr>
<tr>
<td>Download ICU Releases</td>
<td><a href=
"http://site.icu-project.org/download">http://site.icu-project.org/download</a></td>
</tr>
<tr>
<td>ICU4C API Documentation Online</td>
<td><a href=
"http://icu-project.org/apiref/icu4c/">http://icu-project.org/apiref/icu4c/</a></td>
</tr>
<tr>
<td>Online ICU Demos</td>
<td><a href=
"http://demo.icu-project.org/icu-bin/icudemos">http://demo.icu-project.org/icu-bin/icudemos</a></td>
</tr>
<tr>
<td>Contacts and Bug Reports/Feature Requests</td>
<td><a href=
"http://site.icu-project.org/contacts">http://site.icu-project.org/contacts</a></td>
</tr>
</table>
<p><strong>Important:</strong> Please make sure you understand the <a href=
"license.html">Copyright and License Information</a>.</p>
<h2><a name="News" href="#News" id="News">What is new in this
release?</a></h2>
<p>This is a maintenance release of ICU 4.8. No new APIs were added.</p>
<p>To see which APIs are new or changed in the 4.8 release, view the <a href="APIChangeReport.html">ICU4C API Change Report</a>. </p>
<p>The following list concentrates on <em>changes that affect existing
applications migrating from previous ICU releases</em>.
For more news about
this release, see the <a href="http://site.icu-project.org/download">ICU
download page</a>.</p>
<h3>MessageFormat Changes</h3>
<p>MessageFormat and related classes (choice/plural/select) have been reimplemented,
with several improvements and some incompatible changes.
See the <a href="http://site.icu-project.org/download/48">ICU 4.8 download</a> page for details.</p>
<h3>Unknown system time zone - Etc/Unknown</h3>
<p>The behavior of the time zone factory method TimeZone::createTimeZone(const UnicodeString&) has changed in this release.
When an unknown time zone ID is specified in the method, previous versions return a TimeZone instance
with ID "GMT" (offset 0 and no daylight saving time). In ICU 4.8, the method uses "Etc/Unknown" as the
time zone ID (but still offset 0 and no daylight saving time) for the case. Existing software checking
the returned time zone ID to validate the input ID may need to be updated to support the new behavior.</p>
<h2><a name="Download" href="#Download" id="Download">How To Download the
Source Code</a></h2>
<p>There are two ways to download ICU releases:</p>
<ul>
<li><strong>Official Release Snapshot:</strong><br />
If you want to use ICU (as opposed to developing it), you should download
an official packaged version of the ICU source code. These versions are
tested more thoroughly than day-to-day development builds of the system,
and they are packaged in zip and tar files for convenient download. These
packaged files can be found at <a href=
"http://site.icu-project.org/download">http://site.icu-project.org/download</a>.<br />
The packaged snapshots are named <strong>icu-nnnn.zip</strong> or
<strong>icu-nnnn.tgz</strong>, where nnnn is the version number. The .zip
file is used for Windows platforms, while the .tgz file is preferred on
most other platforms.<br />
Please unzip this file. </li>
<li><strong>Subversion Source Repository:</strong><br />
If you are interested in developing features, patches, or bug fixes for
ICU, you should probably be working with the latest version of the ICU
source code. You will need to check the code out of our Subversion repository to
ensure that you have the most recent version of all of the files. See our
<a href="http://site.icu-project.org/repository">source
repository</a> for details.</li>
</ul>
<h2><a name="SourceCode" href="#SourceCode" id="SourceCode">ICU Source Code
Organization</a></h2>
<p>In the descriptions below, <strong><i><ICU></i></strong> is the full
path name of the ICU directory (the top level directory from the distribution
archives) in your file system. You can also view the <a href=
"http://userguide.icu-project.org/design">ICU Architectural
Design</a> section of the User's Guide to see which libraries you need for
your software product. You need at least the data (<code>[lib]icudt</code>)
and the common (<code>[lib]icuuc</code>) libraries in order to use ICU.</p>
<table class="docTable" summary="The following files describe the code drop.">
<caption>
The following files describe the code drop.
</caption>
<tr>
<th scope="col">File</th>
<th scope="col">Description</th>
</tr>
<tr>
<td>readme.html</td>
<td>Describes the International Components for Unicode (this file)</td>
</tr>
<tr>
<td>license.html</td>
<td>Contains the text of the ICU license</td>
</tr>
</table>
<p><br />
</p>
<table class="docTable" summary=
"The following directories contain source code and data files.">
<caption>
The following directories contain source code and data files.
</caption>
<tr>
<th scope="col">Directory</th>
<th scope="col">Description</th>
</tr>
<tr>
<td><i><ICU></i>/source/<b>common</b>/</td>
<td>The core Unicode and support functionality, such as resource bundles,
character properties, locales, codepage conversion, normalization,
Unicode properties, Locale, and UnicodeString.</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>i18n</b>/</td>
<td>Modules in i18n are generally the more data-driven, that is to say
resource bundle driven, components. These deal with higher-level
internationalization issues such as formatting, collation, text break
analysis, and transliteration.</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>layout</b>/</td>
<td>Contains the ICU layout engine (not a rasterizer).</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>io</b>/</td>
<td>Contains the ICU I/O library.</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>data</b>/</td>
<td>
<p>This directory contains the source data in text format, which is
compiled into binary form during the ICU build process. It contains
several subdirectories, in which the data files are grouped by
function. Note that the build process must be run again after any
changes are made to this directory.</p>
<p>If some of the following directories are missing, it's probably
because you got an official download. If you need the data source files
for customization, then please download the ICU source code from <a
href="http://site.icu-project.org/repository">subversion</a>.</p>
<ul>
<li><b>in/</b> A directory that contains a pre-built data library for
ICU. A standard source code package will contain this file without
several of the following directories. This is to simplify the build
process for the majority of users and to reduce platform porting
issues.</li>
<li><b>brkitr/</b> Data files for character, word, sentence, title
casing and line boundary analysis.</li>
<li><b>locales/</b> These .txt files contain ICU language and
culture-specific localization data. Two special bundles are
<b>root</b>, which is the fallback data and parent of other bundles,
and <b>index</b>, which contains a list of installed bundles. The
makefile <b>resfiles.mk</b> contains the list of resource bundle
files.</li>
<li><b>mappings/</b> Here are the code page converter tables. These
.ucm files contain mappings to and from Unicode. These are compiled
into .cnv files. <b>convrtrs.txt</b> is the alias mapping table from
various converter name formats to ICU internal format and vice versa.
It produces cnvalias.icu. The makefiles <b>ucmfiles.mk,
ucmcore.mk,</b> and <b>ucmebcdic.mk</b> contain the list of
converters to be built.</li>
<li><b>translit/</b> This directory contains transliterator rules as
resource bundles, a makefile <b>trnsfiles.mk</b> containing the list
of installed system translitaration files, and as well the special
bundle <b>translit_index</b> which lists the system transliterator
aliases.</li>
<li><b>unidata/</b> This directory contains the Unicode data files.
Please see <a href=
"http://www.unicode.org/">http://www.unicode.org/</a> for more
information.</li>
<li><b>misc/</b> The misc directory contains other data files which
did not fit into the above categories. Currently it only contains
time zone information, and a name preperation file for <a href=
"http://www.ietf.org/rfc/rfc3490.txt">IDNA</a>.</li>
<li><b>out/</b> This directory contains the assembled memory mapped
files.</li>
<li><b>out/build/</b> This directory contains intermediate (compiled)
files, such as .cnv, .res, etc.</li>
</ul>
<p>If you are creating a special ICU build, you can set the ICU_DATA
environment variable to the out/ or the out/build/ directories, but
this is generally discouraged because most people set it incorrectly.
You can view the <a href=
"http://userguide.icu-project.org/icudata">ICU Data
Management</a> section of the ICU User's Guide for details.</p>
</td>
</tr>
<tr>
<td><i><ICU></i>/source/test/<b>intltest</b>/</td>
<td>A test suite including all C++ APIs. For information about running
the test suite, see the build instructions specific to your platform
later in this document.</td>
</tr>
<tr>
<td><i><ICU></i>/source/test/<b>cintltst</b>/</td>
<td>A test suite written in C, including all C APIs. For information
about running the test suite, see the build instructions specific to your
platform later in this document.</td>
</tr>
<tr>
<td><i><ICU></i>/source/test/<b>iotest</b>/</td>
<td>A test suite written in C and C++ to test the icuio library. For
information about running the test suite, see the build instructions
specific to your platform later in this document.</td>
</tr>
<tr>
<td><i><ICU></i>/source/test/<b>testdata</b>/</td>
<td>Source text files for data, which are read by the tests. It contains
the subdirectories <b>out/build/</b> which is used for intermediate
files, and <b>out/</b> which contains <b>testdata.dat.</b></td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>tools</b>/</td>
<td>Tools for generating the data files. Data files are generated by
invoking <i><ICU></i>/source/data/build/makedata.bat on Win32 or
<i><ICU></i>/source/make on UNIX.</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>samples</b>/</td>
<td>Various sample programs that use ICU</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>extra</b>/</td>
<td>Non-supported API additions. Currently, it contains the 'uconv' tool
to perform codepage conversion on files.</td>
</tr>
<tr>
<td><i><ICU></i>/<b>packaging</b>/</td>
<td>This directory contain scripts and tools for packaging the final
ICU build for various release platforms.</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>config</b>/</td>
<td>Contains helper makefiles for platform specific build commands. Used
by 'configure'.</td>
</tr>
<tr>
<td><i><ICU></i>/source/<b>allinone</b>/</td>
<td>Contains top-level ICU workspace and project files, for instance to
build all of ICU under one MSVC project.</td>
</tr>
<tr>
<td><i><ICU></i>/<b>include</b>/</td>
<td>Contains the headers needed for developing software that uses ICU on
Windows.</td>
</tr>
<tr>
<td><i><ICU></i>/<b>lib</b>/</td>
<td>Contains the import libraries for linking ICU into your Windows
application.</td>
</tr>
<tr>
<td><i><ICU></i>/<b>bin</b>/</td>
<td>Contains the libraries and executables for using ICU on Windows.</td>
</tr>
</table>
<!-- end of ICU structure ==================================== -->
<h2><a name="HowToBuild" href="#HowToBuild" id="HowToBuild">How To Build And
Install ICU</a></h2>
<h3><a name="RecBuild" href="#RecBuild" id=
"RecBuild">Recommended Build Options</a></h3>
<p>Depending on the platform and the type of installation,
we recommend a small number of modifications and build options.</p>
<ul>
<li><b>Namespace:</b> By default, unicode/uversion.h has
"using namespace icu;" which defeats much of the purpose of the namespace.
(This is for historical reasons: Originally, ICU4C did not use namespaces,
and some compilers did not support them. The default "using" statement
preserves source code compatibility.)<br>
We recommend you turn this off via <code>-DU_USING_ICU_NAMESPACE=0</code>
or by modifying unicode/uversion.h:
<pre>Index: source/common/unicode/uversion.h
===================================================================
--- source/common/unicode/uversion.h (revision 26606)
+++ source/common/unicode/uversion.h (working copy)
@@ -180,7 +180,8 @@
# define U_NAMESPACE_QUALIFIER U_ICU_NAMESPACE::
# ifndef U_USING_ICU_NAMESPACE
-# define U_USING_ICU_NAMESPACE 1
+ // Set to 0 to force namespace declarations in ICU usage.
+# define U_USING_ICU_NAMESPACE 0
# endif
# if U_USING_ICU_NAMESPACE
U_NAMESPACE_USE
</pre>
ICU call sites then either qualify ICU types explicitly,
for example <code>icu::UnicodeString</code>,
or do <code>using icu::UnicodeString;</code> where appropriate.</li>
<li><b>Hardcode the default charset to UTF-8:</b> On platforms where
the default charset is always UTF-8,
like MacOS X and some Linux distributions,
we recommend hardcoding ICU's default charset to UTF-8.
This means that some implementation code becomes simpler and faster,
and statically linked ICU libraries become smaller.
(See the <a href="http://icu-project.org/apiref/icu4c/utypes_8h.html#0a33e1edf3cd23d9e9c972b63c9f7943">U_CHARSET_IS_UTF8</a>
API documentation for more details.)<br>
You can <code>-DU_CHARSET_IS_UTF8=1</code> or modify unicode/utypes.h:
<pre>Index: source/common/unicode/utypes.h
===================================================================
--- source/common/unicode/utypes.h (revision 26606)
+++ source/common/unicode/utypes.h (working copy)
@@ -160,7 +160,7 @@
* @see UCONFIG_NO_CONVERSION
*/
#ifndef U_CHARSET_IS_UTF8
-# define U_CHARSET_IS_UTF8 0
+# define U_CHARSET_IS_UTF8 1
#endif
/*===========================================================================*/
</pre></li>
<li><b>.dat file:</b> By default, the ICU data is built into
a shared library (DLL). This is convenient because it requires no
install-time or runtime configuration,
but the library is platform-specific and cannot be modified.
A .dat package file makes the opposite trade-off:
Platform-portable (except for endianness and charset family, which
can be changed with the icupkg tool)
and modifiable (also with the icupkg tool).
If a path is set, then single data files (e.g., .res files)
can be copied to that location to provide new locale data
or conversion tables etc.<br>
The only drawback with a .dat package file is that the application
needs to provide ICU with the file system path to the package file
(e.g., by calling <code>u_setDataDirectory()</code>)
or with a pointer to the data (<code>udata_setCommonData()</code>)
before other ICU API calls.
This is usually easy if ICU is used from an application where
<code>main()</code> takes care of such initialization.
It may be hard if ICU is shipped with
another shared library (such as the Xerces-C++ XML parser)
which does not control <code>main()</code>.<br>
See the <a href="http://userguide.icu-project.org/icudata">User Guide ICU Data</a>
chapter for more details.<br>
If possible, we recommend building the .dat package.
Specify <code>--with-data-packaging=archive</code>
on the configure command line, as in<br>
<code>runConfigureICU Linux --with-data-packaging=archive</code><br>
(Read the configure script's output for further instructions.
On Windows, the Visual Studio build generates both the .dat package
and the data DLL.)<br>
Be sure to install and use the tiny stubdata library
rather than the large data DLL.</li>
<li><b>Static libraries:</b> It may make sense to build the ICU code
into static libraries (.a) rather than shared libraries (.so/.dll).
Static linking reduces the overall size of the binary by removing
code that is never called.<br>
Example configure command line:<br>
<code>runConfigureICU Linux --enable-static --disable-shared</code></li>
<li><b>Out-of-source build:</b> It is usually desirable to keep the ICU
source file tree clean and have build output files written to
a different location. This is called an "out-of-source build".
Simply invoke the configure script from the target location:
<pre>~/icu$ svn export http://source.icu-project.org/repos/icu/icu/trunk
~/icu$ mkdir trunk-dev
~/icu$ cd trunk-dev
~/icu/trunk-dev$ ../trunk/source/runConfigureICU Linux
~/icu/trunk-dev$ make check</pre></li>
</ul>
<h4>ICU as a System-Level Library</h4>
<p>If ICU is installed as a system-level library, there are further
opportunities and restrictions to consider.
For details, see the <em>Using ICU as an Operating System Level Library</em>
section of the <a href="http://userguide.icu-project.org/design">User Guide ICU Architectural Design</a> chapter.</p>
<ul>
<li><b>Data path:</b> For a system-level library, it is best to load
ICU data from the .dat package file because the file system path
to the .dat package file can be hardcoded. ICU will automatically set
the path to the final install location using U_ICU_DATA_DEFAULT_DIR.
Alternatively, you can set <code>-DICU_DATA_DIR=/path/to/icu/data</code>
when building the ICU code. (Used by source/common/putil.c.)<br>
Consider also setting <code>-DICU_NO_USER_DATA_OVERRIDE</code>
if you do not want the "ICU_DATA" environment variable to be used.
(An application can still override the data path via
<code>u_setDataDirectory()</code> or
<code>udata_setCommonData()</code>.</li>
<li><b>Hide draft API:</b> API marked with <code>@draft</code>
is new and not yet stable. Applications must not rely on unstable
APIs from a system-level library.
Define <code>U_HIDE_DRAFT_API</code>, <code>U_HIDE_INTERNAL_API</code>
and <code>U_HIDE_SYSTEM_API</code>
by modifying unicode/utypes.h before installing it.</li>
<li><b>Only C APIs:</b> Applications must not rely on C++ APIs from a
system-level library because binary C++ compatibility
across library and compiler versions is very hard to achieve.
Most ICU C++ APIs are in header files that contain a comment with
<code>\brief C++ API</code>.
Consider not installing these header files.</li>
<li><b>Disable renaming:</b> By default, ICU library entry point names
have an ICU version suffix. Turn this off for a system-level installation,
to enable upgrading ICU without breaking applications. For example:<br>
<code>runConfigureICU Linux --disable-renaming</code><br>
The public header files from this configuration must be installed
for applications to include and get the correct entry point names.</li>
</ul>
<h3><a name="HowToBuildWindows" href="#HowToBuildWindows" id=
"HowToBuildWindows">How To Build And Install On Windows</a></h3>
<p>Building International Components for Unicode requires:</p>
<ul>
<li>Microsoft Windows</li>
<li>Microsoft Visual C++</li>
<li><a href="#HowToBuildCygwin">Cygwin</a> is required when other versions
of Microsoft Visual C++ and other compilers are used to build ICU.</li>
</ul>
<p>The steps are:</p>
<ol>
<li>Unzip the icu-XXXX.zip file into any convenient location. Using command
line zip, type "unzip -a icu-XXXX.zip -d drive:\directory", or just use
WinZip.</li>
<li>Be sure that the ICU binary directory, <i><ICU></i>\bin\, is
included in the <strong>PATH</strong> environment variable. The tests will
not work without the location of the ICU DLL files in the path.</li>
<li>Open the "<i><ICU></i>\source\allinone\allinone.sln" workspace
file in Microsoft Visual Studio. (This solution includes all the
International Components for Unicode libraries, necessary ICU building
tools, and the test suite projects). Please see the <a href=
"#HowToBuildWindowsCommandLine">command line note below</a> if you want to
build from the command line instead.</li>
<li>Set the active platform to "Win32" or "x64" (See <a href="#HowToBuildWindowsPlatform">Windows platform note</a> below)
and configuration to "Debug" or "Release" (See <a href="#HowToBuildWindowsConfig">Windows configuration note</a> below).</li>
<li>Choose the "Build" menu and select "Rebuild Solution". If you want to
build the Debug and Release at the same time, see the <a href=
"#HowToBuildWindowsBatch">batch configuration note</a> below.</li>
<li>Run the tests. They can be run from the command line or from within Visual Studio.
<h4>Running the Tests from the Windows Command Line (cmd)</h4>
<ul>
<li>For x86 (32 bit) and Debug, use: <br />
<tt><i><ICU></i>\source\allinone\icucheck.bat <i>Platform</i> <i>Configuration</i>
</tt> <br />
</li>
<li>So, for example:
<br />
<tt><i><ICU></i>\source\allinone\icucheck.bat <b>x86</b> <b>Debug</b>
</tt>
<br/> or <br />
<tt><i><ICU></i>\source\allinone\icucheck.bat <b>x86</b> <b>Release</b>
</tt>
<br/> or <br />
<tt><i><ICU></i>\source\allinone\icucheck.bat <b>x64</b> <b>Release</b>
</tt></li>
</ul>
<h4>Running the Tests from within Visual Studio</h4>
<ol>
<li>Run the C++ test suite, "intltest". To do this: set the active startup
project to "intltest", and press Ctrl+F5 to run it. Make sure that it
passes without any errors.</li>
<li>Run the C test suite, "cintltst". To do this: set the active startup
project to "cintltst", and press Ctrl+F5 to run it. Make sure that it
passes without any errors.</li>
<li>Run the I/O test suite, "iotest". To do this: set the active startup
project to "iotest", and press Ctrl+F5 to run it. Make sure that it passes
without any errors.</li>
</ol>
</li>
<li>You are now able to develop applications with ICU by using the
libraries and tools in <i><ICU></i>\bin\. The headers are in
<i><ICU></i>\include\ and the link libraries are in
<i><ICU></i>\lib\. To install the ICU runtime on a machine, or ship
it with your application, copy the needed components from
<i><ICU></i>\bin\ to a location on the system PATH or to your
application directory.</li>
</ol>
<p><a name="HowToBuildWindowsCommandLine" id=
"HowToBuildWindowsCommandLine"><strong>Using MSDEV At The Command Line
Note:</strong></a> You can build ICU from the command line. Assuming that you
have properly installed Microsoft Visual C++ to support command line
execution, you can run the following command, 'devenv.com
<i><ICU></i>\source\allinone\allinone.sln /build "Win32|Release"'. You can also
use Cygwin with this compiler to build ICU, and you can refer to the <a href=
"#HowToBuildCygwin">How To Build And Install On Windows with Cygwin</a>
section for more details.</p>
<p><a name="HowToBuildWindowsPlatform" id=
"HowToBuildWindowsPlatform"><strong>Setting Active Platform
Note:</strong></a> Even though you are able to select "x64" as the active platform, if your operating system is
not a 64 bit version of Windows, the build will fail. To set the active platform, two different possibilities are:</p>
<ul>
<li>Choose "Build" menu, select "Configuration Manager...", and select
"Win32" or "x64" for the Active Platform Solution.</li>
<li>Another way is to select the desired build configuration from "Solution
Platforms" dropdown menu from the standard toolbar. It will say
"Win32" or "x64" in the dropdown list.</li>
</ul>
<p><a name="HowToBuildWindowsConfig" id=
"HowToBuildWindowsConfig"><strong>Setting Active Configuration
Note:</strong></a> To set the active configuration, two different
possibilities are:</p>
<ul>
<li>Choose "Build" menu, select "Configuration Manager...", and select
"Release" or "Debug" for the Active Configuration Solution.</li>
<li>Another way is to select the desired build configuration from "Solution
Configurations" dropdown menu from the standard toolbar. It will say
"Release" or "Debug" in the dropdown list.</li>
</ul>
<p><a name="HowToBuildWindowsBatch" id="HowToBuildWindowsBatch"><strong>Batch
Configuration Note:</strong></a> If you want to build the Win32 and x64 platforms and
Debug and Release configurations at the same time, choose "Build" menu, and select "Batch
Build...". Click the "Select All" button, and then click the "Rebuild"
button.</p>
<h3><a name="HowToBuildCygwin" href="#HowToBuildCygwin" id=
"HowToBuildCygwin">How To Build And Install On Windows with Cygwin</a></h3>
<p>Building International Components for Unicode with this configuration
requires:</p>
<ul>
<li>Microsoft Windows</li>
<li>Microsoft Visual C++ (when gcc isn't used).</li>
<li>
Cygwin with the following installed:
<ul>
<li>bash</li>
<li>GNU make</li>
<li>ar</li>
<li>ranlib</li>
<li>man (if you plan to look at the man pages)</li>
</ul>
</li>
</ul>
<p>There are two ways you can build ICU with Cygwin. You can build with gcc
or Microsoft Visual C++. If you use gcc, the resulting libraries and tools
will depend on the Cygwin environment. If you use Microsoft Visual C++, the
resulting libraries and tools do not depend on Cygwin and can be more easily
distributed to other Windows computers (the generated man pages and shell
scripts still need Cygwin). To build with gcc, please follow the "<a href=
"#HowToBuildUNIX">How To Build And Install On UNIX</a>" instructions, while
you are inside a Cygwin bash shell. To build with Microsoft Visual C++,
please use the following instructions:</p>
<ol>
<li>Start the Windows "Command Prompt" window. This is different from the
gcc build, which requires the Cygwin Bash command prompt. The Microsoft
Visual C++ compiler will not work with a bash command prompt.</li>
<li>If the computer isn't set up to use Visual C++ from the command line,
you need to run vcvars32.bat.<br>For example:<br>"<tt>C:\Program Files\Microsoft
Visual Studio 8\VC\bin\vcvars32.bat</tt>" can be used for 32-bit builds
<strong>or</strong> <br>"<tt>C:\Program Files (x86)\Microsoft Visual Studio
8\VC\bin\amd64\vcvarsamd64.bat</tt>" can be used for 64-bit builds on
Windows x64.</li>
<li>Unzip the icu-XXXX.zip file into any convenient location. Using command
line zip, type "unzip -a icu-XXXX.zip -d drive:\directory", or just use
WinZip.</li>
<li>Change directory to "icu/source", which is where you unzipped ICU.</li>
<li>Run "<tt>bash <a href="source/runConfigureICU">./runConfigureICU</a>
Cygwin/MSVC</tt>" (See <a href="#HowToWindowsConfigureICU">Windows
configuration note</a> and non-functional configure options below).</li>
<li>Type <tt>"make"</tt> to compile the libraries and all the data files.
This make command should be GNU make.</li>
<li>Optionally, type <tt>"make check"</tt> to run the test suite, which
checks for ICU's functionality integrity (See <a href=
"#HowToTestWithoutGmake">testing note</a> below).</li>
<li>Type <tt>"make install"</tt> to install ICU. If you used the --prefix=
option on configure or runConfigureICU, ICU will be installed to the
directory you specified. (See <a href="#HowToInstallICU">installation
note</a> below).</li>
</ol>
<p><a name="HowToWindowsConfigureICU" id=
"HowToWindowsConfigureICU"><strong>Configuring ICU on Windows
NOTE:</strong></a> </p>
<p>
Ensure that the order of the PATH is MSVC, Cygwin, and then other PATHs. The configure
script needs certain tools in Cygwin (e.g. grep).
</p>
<p>
Also, you may need to run <tt>"dos2unix.exe"</tt> on all of the scripts (e.g. configure)
in the top source directory of ICU. To avoid this issue, you can download
the ICU source for Unix platforms (icu-xxx.tgz).
</p>
<p>In addition to the Unix <a href=
"#HowToConfigureICU">configuration note</a> the following configure options
currently do not work on Windows with Microsoft's compiler. Some options can
work by manually editing <tt>icu/source/common/unicode/pwin32.h</tt>, but
manually editing the files is not recommended.</p>
<ul>
<li><tt>--disable-renaming</tt></li>
<li><tt>--disable-threading</tt> (This flag does disable threading in ICU,
but the resulting ICU library will still be linked with MSVC's multithread DLL)</li>
<li><tt>--enable-tracing</tt></li>
<li><tt>--enable-rpath</tt></li>
<li><tt>--with-iostream</tt></li>
<li><tt>--enable-static</tt> (Requires that U_STATIC_IMPLEMENTATION be
defined in user code that links against ICU's static libraries.)</li>
<li><tt>--with-data-packaging=files</tt> (The pkgdata tool currently does
not work in this mode. Manual packaging is required to use this mode.)</li>
</ul>
<h3><a name="HowToBuildUNIX" href="#HowToBuildUNIX" id="HowToBuildUNIX">How
To Build And Install On UNIX</a></h3>
<p>Building International Components for Unicode on UNIX requires:</p>
<ul>
<li>A C++ compiler installed on the target machine (for example: gcc, CC,
xlC_r, aCC, cxx, etc...).</li>
<li>An ANSI C compiler installed on the target machine (for example:
cc).</li>
<li>A recent version of GNU make (3.80+).</li>
<li>For a list of z/OS tools please view the <a href="#HowToBuildZOS">z/OS
build section</a> of this document for further details.</li>
</ul>
<p>Here are the steps to build ICU:</p>
<ol>
<li>Decompress the icu-<i>X</i>.<i>Y</i>.tgz (or
icu-<i>X</i>.<i>Y</i>.tar.gz) file. For example, <tt>"gunzip -d <
icu-<i>X</i>.<i>Y</i>.tgz | tar xvf -"</tt></li>
<li>Change directory to the "icu/source".</li>
<li>Run <tt>"chmod +x runConfigureICU configure install-sh"</tt> because
these files may have the wrong permissions.</li>
<li>Run the <tt><a href="source/runConfigureICU">runConfigureICU</a></tt>
script for your platform. (See <a href="#HowToConfigureICU">configuration
note</a> below).</li>
<li>Type <tt>"gmake"</tt> (or "make" if GNU make is the default make on
your platform) to compile the libraries and all the data files. The proper
name of the GNU make command is printed at the end of the configuration
run, as in "You must use gmake to compile ICU".</li>
<li>Optionally, type <tt>"gmake check"</tt> to run the test suite, which
checks for ICU's functionality integrity (See <a href=
"#HowToTestWithoutGmake">testing note</a> below).</li>
<li>Type <tt>"gmake install"</tt> to install ICU. If you used the --prefix=
option on configure or runConfigureICU, ICU will be installed to the
directory you specified. (See <a href="#HowToInstallICU">installation
note</a> below).</li>
</ol>
<p><a name="HowToConfigureICU" id="HowToConfigureICU"><strong>Configuring ICU
NOTE:</strong></a> Type <tt>"./runConfigureICU --help"</tt> for help on how
to run it and a list of supported platforms. You may also want to type
<tt>"./configure --help"</tt> to print the available configure options that
you may want to give runConfigureICU. If you are not using the
runConfigureICU script, or your platform is not supported by the script, you
may need to set your CC, CXX, CFLAGS and CXXFLAGS environment variables, and
type <tt>"./configure"</tt>.
HP-UX users, please see this <a href="#ImportantNotesHPUX">note regarding
HP-UX multithreaded build issues</a> with newer compilers. Solaris users,
please see this <a href="#ImportantNotesSolaris">note regarding Solaris
multithreaded build issues</a>.</p>
<p>ICU is built with strict compiler warnings enabled by default. If this
causes excessive numbers of warnings on your platform, use the --disable-strict
option to configure to reduce the warning level.</p>
<p><a name="HowToTestWithoutGmake" id="HowToTestWithoutGmake"><strong>Running
The Tests From The Command Line NOTE:</strong></a> You may have to set
certain variables if you with to run test programs individually, that is
apart from "gmake check". The environment variable <strong>ICU_DATA</strong>
can be set to the full pathname of the data directory to indicate where the
locale data files and conversion mapping tables are when you are not using
the shared library (e.g. by using the .dat archive or the individual data
files). The trailing "/" is required after the directory name (e.g.
"$Root/source/data/out/" will work, but the value "$Root/source/data/out" is
not acceptable). You do not need to set <strong>ICU_DATA</strong> if the
complete shared data library is in your library path.</p>
<p><a name="HowToInstallICU" id="HowToInstallICU"><strong>Installing ICU
NOTE:</strong></a> Some platforms use package management tools to control the
installation and uninstallation of files on the system, as well as the
integrity of the system configuration. You may want to check if ICU can be
packaged for your package management tools by looking into the "packaging"
directory. (Please note that if you are using a snapshot of ICU from Subversion, it
is probable that the packaging scripts or related files are not up to date
with the contents of ICU at this time, so use them with caution).</p>
<h3><a name="HowToBuildZOS" href="#HowToBuildZOS" id="HowToBuildZOS">How To
Build And Install On z/OS (OS/390)</a></h3>
<p>You can install ICU on z/OS or OS/390 (the previous name of z/OS), but IBM
tests only the z/OS installation. You install ICU in a z/OS UNIX system
services file system such as HFS or zFS. On this platform, it is important
that you understand a few details:</p>
<ul>
<li>The makedep and GNU make tools are required for building ICU. If it
is not already installed on your system, it is available at the <a href=
"http://www-03.ibm.com/servers/eserver/zseries/zos/unix/bpxa1toy.html">z/OS UNIX -
Tools and Toys</a> site. The PATH environment variable should be updated to
contain the location of this executable prior to build. Failure to add these
tools to your PATH will cause ICU build failures or cause pkgdata to fail
to run.</li>
<li>Since USS does not support using the mmap() function over NFS, it is
recommended that you build ICU on a local filesystem. Once ICU has been
built, you should not have this problem while using ICU when the data
library has been built as a shared library, which is this is the default
setting.</li>
<li>Encoding considerations: The source code assumes that it is compiled