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<title>How to build the Jogl OpenGL binding for Java</title>
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<h1>How to build the Jogl OpenGL binding for Java</h1>
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Here are the steps that are required in order to build the Jogl
OpenGL binding from a fresh copy of the source distribution:
<OL>
<LI> <B>Install ANTLR:</B> <br> Download and unpack ANTLR 2.7.2 from <a href="http://www.antlr.org">http://www.antlr.org</a>.
<LI> <B>Set your CLASSPATH environment variable:</B> <br> Add the ANTLR jar file to your classpath.
<LI> <B>Set the JAVA_HOME environment variable:</B> <br> Create an environment variable named JAVA_HOME and set it to point to the root of your Java SDK.
<LI> <B>Install GNU Make:</B> To confirm that it is installed, run "make -v"; you should see some output that starts with "GNU Make version" and then a version number.
<UL>
<LI><b>On Linux/Solaris:</b> Gnu Make is probably already installed. If it is not, you can obtain it from <a href="http://www.gnu.org/directory/devel/build/make.html">http://www.gnu.org/directory/devel/build/make.html</a>
<LI><b>On Win32:</b> You have two options. The first is to install the Cygwin environment, available from <a href="http://www.cygwin.com/">http://www.cygwin.com/</a>. The second (untested) option is to install the GnuWin32 tools, available from <a href="http://sourceforge.net/projects/gnuwin32/"</a>http://sourceforge.net/projects/gnuwin32/</a>.
</UL>
<LI> <B>Build the source tree:</B> <br> You can do this by opening a command shell in the "make" directory of the source tree and typing "make PLATFORM COMPILER_OPTIONS". PLATFORM, COMPILER_OPTIONS are as follows:
<UL>
<LI><b>PLATFORM</b> This must be one of "win32", "x11", or "macosx". "win32" will build the code for 32-bit Microsoft Windows operating systems, "x11" will build for Linux or Sun Solaris, and "macosx" will build for Apple MacOS X.
<LI><b>COMPILER_OPTIONS</b> This is currently only needed when "win32" is specified. COMPILER_OPTIONS must be one of "VC6=1" or "VC7=1"; choosing the former will invoke the Microsoft Visual C++ 6.0 compiler, and the latter option will invoke the Microsoft Visual C++ 7 (Visual Studio .NET) compiler. These are the two compilers currently supported by Jogl on Win32.
</UL>
<LI> <B>Add Jogl to your CLASSPATH:</B> <br> To be able to use Jogl, you must add the build process Java bytecode output directory (<source tree root>/build/classes) to your CLASSPATH environment variable.
<LI> <B>Add Jogl to your PATH:</B> <br> To be able to use Jogl, you must also add the build process JNI code library directory (<source tree root>/build/obj) to your PATH.
<LI> <B>Test if everything's working:</B> <br> To test if everything went well, you should build the "Gears.java" demo in the "<source tree root>/demos/gears" directory. Run "javac Gears.java" and then "java Gears"; you should see some spinning 3D gears appear in a window.
<LI> <B>Build Javadoc:</B> <br> "make doc" will produce the end-user documentation for Jogl along with some auxiliary utility packages. "make devdoc" will produce the developers' documentation, including that for the GlueGen tool.
</OL>
Note that there are a lot of warnings produced by ANTLR about the
C grammar and our modifications to some of the signatures of the
productions; the C grammar warnings have been documented by the
author of the grammar as having been investigated completely and
harmless, and the warnings about our modifications are also
harmless. <P>
- Christopher Kline and Kenneth Russell, June 2003
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