tomcat-cas/webapps/docs/BUILDING.txt

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            ====================================================
            Building The Apache Tomcat 6.0 Servlet/JSP Container
            ====================================================

This subproject contains the source code for Tomcat 6.0, a container that
implements the Servlet 2.5 and JSP 2.1 specifications from the Java
Community Process <http://www.jcp.org/>.

Note: If you just need to run Apache Tomcat, it is not necessary to build
it. You may simply download a binary distribution. It is cross-platform.
Read RUNNING.txt for the instruction on how to run it.

In order to build a binary distribution version of Apache Tomcat from a
source distribution, do the following:


(0) Download and Install a Java Development Kit

* If the JDK is already installed, skip to (1).

* Download a Java Development Kit (JDK) of Java SE version 5 from

    http://www.oracle.com/technetwork/java/javase/downloads/index.html
    or from another JDK vendor.

  Note regarding versions of Java later than Java SE 5:

    As documented elsewhere, one of components in Apache Tomcat includes
    a private copy of the Apache Commons DBCP library. The source code
    for this library is downloaded, processed by the build script
    (renaming the packages) and compiled.

    Due to changes in JDBC interfaces implemented by the library between
    versions of Java SE specification, the library has to target specific
    version of Java and can be compiled only with the JDK version
    implementing this version of specification.

    See Apache Commons DBCP project web site for more details on
    available versions of the library and its requirements,

      http://commons.apache.org/dbcp/

  It is possible to use later versions of JDK to build Tomcat 6.0, but the
  building of that component (tomcat-dbcp.jar) will be skipped and a
  warning will be printed.

* Install the JDK according to the instructions included with the release.

* Set an environment variable JAVA_HOME to the pathname of the directory
  into which you installed the JDK release.


(1) Install Apache Ant 1.6.x on your computer

* If Apache Ant 1.6.x is already installed on your computer, skip to (2).

* Download a binary distribution of Ant 1.6.x from:

    http://ant.apache.org/bindownload.cgi

* Unpack the binary distribution into a convenient location so that the
  Ant release resides in its own directory (conventionally named
  "apache-ant-[version]").  For the purposes of the remainder of this document,
  the symbolic name "${ant.home}" is used to refer to the full pathname of
  the release directory.

* Create an ANT_HOME environment variable to point the directory
  ${ant.home}.

* Modify the PATH environment variable to include the directory
  ${ant.home}/bin in its list.  This makes the "ant" command line script
  available, which will be used to actually perform the build.


(2) Building Tomcat 6.0

(2.1) Checkout or obtain the source code for Tomcat 6.0

* Tomcat 6.0 SVN repository URL:
  http://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk/

* Download a source package from:
  http://tomcat.apache.org/download-60.cgi

* Checkout the source using SVN, selecting a tag for released version or
  trunk for the current development code, or unpack a source package. The
  location where the source has been placed will be referred as
  ${tomcat.source}.

(2.2) Building

* Go to that directory, and do:

    cd ${tomcat.source}
    ant download
    ant

* WARNING: Running "ant download" command will download libraries required
  to build Tomcat to the /usr/share/java directory.  On a typical Linux or
  MacOX system an ordinary user  will not have access to write to this
  directory, and, even if you do, it may not be appropriate for you to
  write there.

  On Windows this usually corresponds to the "C:\usr\share\java"
  directory, unless Cygwin is used. Read below to learn how to customize
  the directory used to download the binaries.

* NOTE: Users accessing the Internet through a proxy must use a properties
  file to indicate to Ant the proxy configuration. Read below.

* The build can be controlled by creating a ${tomcat.source}/build.properties
  file, and adding the following content to it:

    # ----- Proxy setup -----
    # Uncomment if using a proxy server
    #proxy.host=proxy.domain
    #proxy.port=8080
    #proxy.use=on

    # ----- Default Base Path for Dependent Packages -----
    # Replace this path with the directory path where dependencies binaries
    # should be downloaded
    base.path=/home/me/some-place-to-download-to


(3) Updating sources

It is recommended that you regularly update the downloaded Tomcat 6 sources
using your SVN client.

(4) Rebuilds

For a quick rebuild of only modified code you can use:
   
    cd ${tomcat.source}
    ant

(5) Building the servlet and jsp API documentation

    cd ${tomcat.source}
    ant -f dist.xml dist-javadoc

(6) Building the extras (commons-logging, webservices etc.).

    cd ${tomcat.source}
    ant -f extras.xml

(7) Building a release:

    cd ${tomcat.source}
    ant -f dist.xml release