Added information about building regex with ICU support.

[SVN r30395]

more/getting_started.html

@@ -504,6 +504,28 @@
                version of Python. The regular versions of the Boost.Python libraries are also 
                built.</td>
          </tr>
+         <tr>
+            <td vAlign="top" noWrap align="left"><tt>-sHAVE_ICU=1</tt></td>
+            <td vAlign="top" align="left">Build Boost.Regex libraries with Unicode support
+               provided by the <a href="http://www-306.ibm.com/software/globalization/icu/index.jsp">
+               ICU libraries</a>.  ICU must have been built with the same
+               compiler that you are using to build Boost, and must be installed into
+               your compiler's include and library search paths.  See 
+               <a href="../libs/regex/doc/install.html#unicode">the Boost.Regex
+               installation documentation for more information</a>.</td>
+         </tr>
+         <tr>
+            <td vAlign="top" noWrap align="left"><tt>-sICU_PATH=<I>path</I></tt></td>
+            <td vAlign="top" align="left">Build Boost.Regex libraries with Unicode support
+               provided by the <a href="http://www-306.ibm.com/software/globalization/icu/index.jsp">
+               ICU libraries</a>.  ICU must have been built with the same
+               compiler that you are using to build Boost, and must have been built 
+               (or installed to) directory <I>path</I>.  
+               For example if you configured ICU with <tt>--prefix=/usr/local/icu/3.3</tt>, then use
+               <tt>-sICU_PATH=/usr/local/icu/3.3</tt>.  See 
+               <a href="../libs/regex/doc/install.html#unicode">the Boost.Regex
+               installation documentation for more information</a>.</td>
+         </tr>
       </table>
       <p>There are additional options as supported by <A href="../tools/build/v1/build_system.htm">
             Boost.Build</A> and <A href="../tools/build/jam_src/index.html">Boost.Jam</A>. 
@@ -993,3 +1015,4 @@
                www.boost.org/LICENSE_1_0.txt</a>)</small></p>
    </body>
 </html>
+