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README-builds.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<!-- OpenJDK 6 Specific -->
<title>OpenJDK 6 Build README</title>
</head>
<body style="background-color:lightcyan">
<!-- ====================================================== -->
<table width="100%" style="background-color:white">
<tr>
<td align="center">
<a href="http://openjdk.java.net" border="0">
<img alt="OpenJDK"
src="http://openjdk.java.net/images/openjdk.png"
width=256
style="border-style: none"/>
</a>
</td>
</tr>
<tr>
<td align=center>
<!-- OpenJDK 6 Specific -->
<h1>OpenJDK 6 Build README</h1>
</td>
</tr>
</table>
<!-- ------------------------------------------------------ -->
<hr>
<h2><a name="introduction">Introduction</a></h2>
<blockquote>
<p>
This README file contains build instructions for the
<a href="http://openjdk.java.net" target="_blank">OpenJDK</a>.
Building the source code for the
OpenJDK
requires
a certain degree of technical expertise.
<!-- OpenJDK 6 Specific -->
<blockquote style="background-color:white">
This document is specific to OpenJDK 6, which has some
very minor differences in the build requirements over
the OpenJDK 7 sources,
e.g. OpenJDK 6 requires access to Motif files.
Where there are differences they should stand out,
like this block of text does.
</blockquote>
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h2><a name="contents">Contents</a></h2>
<blockquote>
<ul>
<li><a href="#introduction">Introduction</a></li>
<li><a href="#MBE">Minimum Build Environments</a></li>
<li><a href="#SDBE">Specific Developer Build Environments</a>
<ul>
<li><a href="#fedora">Fedora</a></li>
<li><a href="#debian">Debian</a></li>
<li><a href="#ubuntu">Ubuntu</a></li>
<li><a href="#opensuse">OpenSUSE</a></li>
<li><a href="#mandriva">Mandriva</a></li>
<li><a href="#opensolaris">OpenSolaris</a></li>
</ul>
</li>
<li><a href="#directories">Source Directory Structure</a> </li>
<li><a href="#building">Build Information</a>
<ul>
<li><a href="#gmake">GNU Make (<tt><i>gmake</i></tt>)</a> </li>
<li><a href="#linux">Basic Linux System Setup</a> </li>
<li><a href="#solaris">Basic Solaris System Setup</a> </li>
<li><a href="#windows">Basic Windows System Setup</a> </li>
<li><a href="#dependencies">Build Dependencies</a> </li>
<ul>
<li><a href="#bootjdk">Bootstrap JDK</a> </li>
<li><a href="#importjdk">Optional Import JDK</a> </li>
<li><a href="#ant">Ant</a> </li>
<li><a href="#cacerts">Certificate Authority File (cacert)</a> </li>
<li><a href="#compilers">Compilers</a>
<ul>
<li><a href="#msvc">Microsoft Visual Studio</a> </li>
<li><a href="#mssdk">Microsoft Platform SDK</a> </li>
<li><a href="#gcc">Linux gcc/binutils</a> </li>
<li><a href="#studio">Sun Studio</a> </li>
</ul>
</li>
<li><a href="#zip">Zip and Unzip</a> </li>
<li><a href="#freetype">FreeType2 Fonts</a> </li>
<li>Linux and Solaris:
<ul>
<!-- OpenJDK 6 Specific -->
<li style="background-color:white"><a href="#motif">Motif</a> </li>
<li><a href="#cups">CUPS Include files</a> </li>
</ul>
</li>
<li>Linux only:
<ul>
<li><a href="#alsa">ALSA files</a> </li>
</ul>
</li>
<li>Windows only:
<ul>
<li>Unix Command Tools (<a href="#cygwin">CYGWIN</a>)</li>
<li><a href="#dxsdk">DirectX 9.0 SDK</a> </li>
</ul>
</li>
</ul>
</ul>
</li>
<li><a href="#creating">Creating the Build</a> </li>
<li><a href="#testing">Testing the Build</a> </li>
<li><a href="#variables">Environment/Make Variables</a></li>
<li><a href="#troubleshooting">Troubleshooting</a></li>
</ul>
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h2><a name="MBE">Minimum Build Environments</a></h2>
<blockquote>
This file often describes specific requirements for what we call the
"minimum build environments" (MBE) for this
specific release of the JDK,
Building with the MBE will generate the most compatible
bits that install on, and run correctly on, the most variations
of the same base OS and hardware architecture.
These usually represent what is often called the
least common denominator platforms.
It is understood that most developers will NOT be using these
specific platforms, and in fact creating these specific platforms
may be difficult due to the age of some of this software.
<p>
The minimum OS and C/C++ compiler versions needed for building the
OpenJDK:
<p>
<table border="1">
<thead>
<tr>
<th>Base OS and Architecture</th>
<th>OS</th>
<th>C/C++ Compiler</th>
</tr>
</thead>
<tbody>
<tr>
<td>Linux X86 (32bit)</td>
<td>Fedora 9</td>
<td>gcc 4 </td>
</tr>
<tr>
<td>Linux X64 (64bit)</td>
<td>Fedora 9</td>
<td>gcc 4 </td>
</tr>
<tr>
<td>Solaris SPARC (32bit)</td>
<!-- OpenJDK 6 Specific -->
<td>Solaris 8 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 11 </td>
</tr>
<tr>
<td>Solaris SPARCV9 (64bit)</td>
<!-- OpenJDK 6 Specific -->
<td>Solaris 8 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 11</td>
</tr>
<tr>
<td>Solaris X86 (32bit)</td>
<!-- OpenJDK 6 Specific -->
<td>Solaris 8 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 11</td>
</tr>
<tr>
<td>Solaris X64 (64bit)</td>
<td>Solaris 10 + patches
<br>
See <a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/JavaSE" target="_blank">
SunSolve</a> for patch downloads.
</td>
<td>Sun Studio 11</td>
</tr>
<tr>
<td>Windows X86 (32bit)</td>
<!-- OpenJDK 6 Specific -->
<td>Windows 2000</td>
<td>Microsoft Visual Studio .NET 2003 Professional</td>
</tr>
<tr>
<td>Windows X64 (64bit)</td>
<td>Windows Server 2003 - Enterprise x64 Edition</td>
<td>Microsoft Platform SDK - April 2005</td>
</tr>
</tbody>
</table>
<p>
These same sources do indeed build on many more systems than the
above older generation systems, again the above is just a minimum.
<p>
Compilation problems with newer or different C/C++ compilers is a
common problem.
Similarly, compilation problems related to changes to the
<tt>/usr/include</tt> or system header files is also a
common problem with newer or unreleased OS versions.
Please report these types of problems as bugs so that they
can be dealt with accordingly.
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h2><a name="SDBE">Specific Developer Build Environments</a></h2>
<blockquote>
We won't be listing all the possible environments, but
we will try to provide what information we have available to us.
</blockquote>
<!-- ====================================================== -->
<h3><a name="fedora">Fedora</a></h3>
<blockquote>
<h4>Fedora 9</h4>
<p>
<blockquote>
After installing <a href="http://fedoraproject.org">Fedora</a> 9
you need to install several build dependencies. The simplest
way to do it is to execute the following commands as user
<tt>root</tt>:
<p/>
<code>yum-builddep java-1.6.0-openjdk</code>
<p/>
<code>yum install gcc gcc-c++</code>
<p/>
In addition, it's necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-openjdk</code>
</blockquote>
<h4>Fedora 10</h4>
<p>
<blockquote>
After installing <a href="http://fedoraproject.org">Fedora</a> 10
you need to install several build dependencies. The simplest
way to do it is to execute the following commands as user
<tt>root</tt>:
<p/>
<code>yum-builddep java-1.6.0-openjdk</code>
<p/>
<code>yum install gcc gcc-c++</code>
<p/>
In addition, it's necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-openjdk</code>
</blockquote>
<h4>Fedora 11</h4>
<p>
<blockquote>
After installing <a href="http://fedoraproject.org">Fedora</a> 11
you need to install several build dependencies. The simplest
way to do it is to execute the following commands as user
<tt>root</tt>:
<p/>
<code>yum-builddep java-1.6.0-openjdk</code>
<p/>
<code>yum install gcc gcc-c++</code>
<p/>
In addition, it's necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-openjdk</code>
</blockquote>
</blockquote>
<!-- ====================================================== -->
<h3><a name="debian">Debian</a></h3>
<blockquote>
<h4>Debian 5.0 (Lenny)</h4>
<p>
<blockquote>
After installing <a href="http://debian.org">Debian</a> 5
you need to install several build dependencies.
The simplest way to install the build dependencies is to
execute the following commands as user <tt>root</tt>:
<p/>
<code>aptitude build-dep openjdk-6</code>
<p/>
<code>aptitude install openjdk-6-jdk</code>
<p/>
<!-- OpenJDK 6 Specific -->
<code style="background-color:white">aptitude install libmotif-dev</code>
<p/>
In addition, it's necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-6-openjdk</code>
</blockquote>
</blockquote>
<!-- ====================================================== -->
<h3><a name="ubuntu">Ubuntu</a></h3>
<blockquote>
<h4>Ubuntu 8.04</h4>
<p>
<blockquote>
After installing <a href="http://ubuntu.org">Ubuntu</a> 8.04
you need to install several build dependencies.
<p/>
First, you need to enable the universe repository in the
Software Sources application and reload the repository
information. The Software Sources application is available
under the System/Administration menu.
<p/>
The simplest way to install the build dependencies is to
execute the following commands:
<p/>
<code>sudo aptitude build-dep openjdk-6</code>
<p/>
<code>sudo aptitude install openjdk-6-jdk</code>
<p/>
<!-- OpenJDK 6 Specific -->
<code style="background-color:white">sudo aptitude install libmotif-dev</code>
<p/>
In addition, it's necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-6-openjdk</code>
</blockquote>
<h4>Ubuntu 8.10</h4>
<p>
<blockquote>
After installing <a href="http://ubuntu.org">Ubuntu</a> 8.10
you need to install several build dependencies. The simplest
way to do it is to execute the following commands:
<p/>
<code>sudo aptitude build-dep openjdk-6</code>
<p/>
<code>sudo aptitude install openjdk-6-jdk gcc-4.2 g++-4.2</code>
<p/>
<!-- OpenJDK 6 Specific -->
<code style="background-color:white">sudo aptitude install libmotif-dev</code>
<p/>
In addition, it's necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-6-openjdk</code>
<p/>
Then, calling <tt>make</tt> in the top level OpenJDK source
code directory with the following parameters results in a
working build:
<p/>
<code>make all CC=gcc-4.2 CPP=g++-4.2</code>
</blockquote>
<h4>Ubuntu 9.04</h4>
<p>
<blockquote>
After installing <a href="http://ubuntu.org">Ubuntu</a> 9.04
you need to install several build dependencies. The simplest
way to do it is to execute the following commands:
<p/>
<code>sudo aptitude build-dep openjdk-6</code>
<p/>
<code>sudo aptitude install openjdk-6-jdk gcc-4.2 g++-4.2</code>
<p/>
<!-- OpenJDK 6 Specific -->
<code style="background-color:white">sudo aptitude install libmotif-dev</code>
<p/>
In addition, it's necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-6-openjdk</code>
<p/>
Then, calling <tt>make</tt> in the top level OpenJDK source
code directory with the following parameters results in a
working build:
<p/>
<code>make all CC=gcc-4.2 CPP=g++-4.2</code>
</blockquote>
</blockquote>
<!-- ====================================================== -->
<h3><a name="opensuse">OpenSUSE</a></h3>
<blockquote>
<h4>OpenSUSE 11.1</h4>
<p>
<blockquote>
After installing <a href="http://opensuse.org">OpenSUSE</a> 11.1
you need to install several build dependencies.
The simplest way to install the build dependencies is to
execute the following commands:
<p/>
<code>sudo zypper source-install -d java-1_6_0-openjdk</code>
<p/>
<code>sudo zypper install make</code>
<p/>
In addition, it is necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-1.6.0-openjdk</code>
<p/>
Finally, you need to unset the <code>JAVA_HOME</code> environment variable:
<p/>
<code>export -n JAVA_HOME</code>
</blockquote>
</blockquote>
<!-- ====================================================== -->
<h3><a name="mandriva">Mandriva</a></h3>
<blockquote>
<h4>Mandriva Linux One 2009 Spring</h4>
<p>
<blockquote>
After installing <a href="http://mandriva.org">Mandriva</a> Linux One 2009 Spring
you need to install several build dependencies.
The simplest way to install the build dependencies is to
execute the following commands as user <tt>root</tt>:
<p/>
<code>urpmi java-1.6.0-openjdk-devel ant make gcc gcc-c++ freetype-devel zip unzip libcups2-devel libxrender1-devel libalsa2-devel libstc++-static-devel libxtst6-devel libxi-devel</code>
<p/>
<!-- OpenJDK 6 Specific -->
<code style="background-color:white">urpmi libopenmotif-devel</code>
<p/>
In addition, it is necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-1.6.0-openjdk</code>
</blockquote>
</blockquote>
<!-- ====================================================== -->
<h3><a name="opensolaris">OpenSolaris</a></h3>
<blockquote>
<h4>OpenSolaris 2009.06</h4>
<p>
<blockquote>
After installing <a href="http://opensolaris.org">OpenSolaris</a> 2009.06
you need to install several build dependencies.
The simplest way to install the build dependencies is to
execute the following commands:
<p/>
<code>pfexec pkg install SUNWgmake SUNWj6dev SUNWant sunstudioexpress SUNWcups SUNWzip SUNWunzip SUNWxwhl SUNWxorg-headers SUNWaudh SUNWfreetype2</code>
<p/>
<!-- OpenJDK 6 Specific -->
<code style="background-color:white">pfexec pkg install SUNWmfrun</code>
<p/>
In addition, it is necessary to set a few environment variables for the build:
<p/>
<code>export LANG=C ALT_COMPILER_PATH=/opt/SunStudioExpress/bin/ ALT_CUPS_HEADERS_PATH=/usr/include/</code>
<p/>
Finally, you need to make sure that the build process can find the Sun Studio compilers:
<p/>
<code>export PATH=$PATH:/opt/SunStudioExpress/bin/</code>
</blockquote>
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h2><a name="directories">Source Directory Structure</a></h2>
<blockquote>
<p>
The source code for the OpenJDK is delivered in a set of
directories:
<tt>hotspot</tt>,
<tt>langtools</tt>,
<tt>corba</tt>,
<tt>jaxws</tt>,
<tt>jaxp</tt>,
and
<tt>jdk</tt>.
The <tt>hotspot</tt> directory contains the source code and make
files for building the OpenJDK Hotspot Virtual Machine.
The <tt>langtools</tt> directory contains the source code and make
files for building the OpenJDK javac and language tools.
The <tt>corba</tt> directory contains the source code and make
files for building the OpenJDK Corba files.
The <tt>jaxws</tt> directory contains the source code and make
files for building the OpenJDK JAXWS files.
The <tt>jaxp</tt> directory contains the source code and make
files for building the OpenJDK JAXP files.
The <tt>jdk</tt> directory contains the source code and make files for
building the OpenJDK runtime libraries and misc files.
The top level <tt>Makefile</tt>
is used to build the entire OpenJDK.
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h2><a name="building">Build Information</a></h2>
<blockquote>
Building the OpenJDK
is done with a <tt><i>gmake</i></tt>
command line and various
environment or make variable settings that direct the make rules
to where various components have been installed.
Where possible the makefiles will attempt to located the various
components in the default locations or any component specific
variable settings.
When the normal defaults fail or components cannot be found,
the various
<tt>ALT_*</tt> variables (alternates)
can be used to help the makefiles locate components.
<p>
Refer to the bash/sh/ksh setup file
<tt>jdk/make/jdk_generic_profile.sh</tt>
if you need help in setting up your environment variables.
A build could be as simple as:
<blockquote>
<pre><tt>
bash
. jdk/make/jdk_generic_profile.sh
<i>gmake</i> sanity && <i>gmake</i>
</tt></pre>
</blockquote>
<p>
Of course ksh or sh would work too.
But some customization will probably be necessary.
The <tt>sanity</tt> rule will make some basic checks on build
dependencies and generate appropriate warning messages
regarding missing, out of date, or newer than expected components
found on your system.
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h3><a name="gmake">GNU make (<tt><i>gmake</i></tt>)</a></h3>
<blockquote>
The Makefiles in the OpenJDK are only valid when used with the
GNU version of the utility command <tt>make</tt>
(<tt><i>gmake</i></tt>).
A few notes about using GNU make:
<ul>
<li>
In general, you need GNU make version 3.78.1 or newer.
</li>
<li>
Place the location of the GNU make binary in the <tt>PATH</tt>.
</li>
<li>
<strong>Linux:</strong>
The <tt>/usr/bin/make</tt> command should work fine for you.
</li>
<li>
<strong>Solaris:</strong>
Do NOT use <tt>/usr/bin/make</tt> on Solaris.
If your Solaris system has the software
from the Solaris Companion CD installed,
you should use <tt>gmake</tt>
which will be located in either the <tt>/opt/sfw/bin</tt> or
<tt>/usr/sfw/bin</tt> directory.
</li>
<li>
<strong>Windows:</strong>
Make sure you start your build inside a bash/sh/ksh shell
and are using a <tt>make.exe</tt> utility built for that
environment (a cygwin <tt>make.exe</tt> is not the same
as a <tt>make.exe</tt> built for something like
<a href="http://www.mkssoftware.com/">MKS</a>).
<br>
<b>WARNING:</b> Watch out for make version 3.81, it may
not work due to a lack of support for drive letter paths
like <tt>C:/</tt>. See
<a href="#gmake">section on gmake</a>.
Use a 3.80 version, or find a newer
version that has this problem fixed.
The older 3.80 version of make.exe can be downloaded with this
<a href="http://cygwin.paracoda.com/release/make/make-3.80-1.tar.bz2" target="_blank">
link</a>.
Also see the
<a href="http://developer.mozilla.org/en/docs/Windows_build_prerequisites_using_cygwin#make" target="_blank">
mozilla developer center</a>
on this topic.
</li>
</ul>
<p>
Information on GNU make, and access to ftp download sites, are
available on the
<a href="http://www.gnu.org/software/make/make.html" target="_blank">
GNU make web site
</a>.
The latest source to GNU make is available at
<a href="http://ftp.gnu.org/pub/gnu/make/" target="_blank">
ftp.gnu.org/pub/gnu/make/</a>.
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h3><a name="linux">Basic Linux System Setup</a></h3>
<blockquote>
<strong>i586 only:</strong>
The minimum recommended hardware for building the Linux version
is a Pentium class processor or better, at least 256 MB of RAM, and
approximately 1.5 GB of free disk space.
<p>
<strong>X64 only:</strong>
The minimum recommended hardware for building the Linux
version is an AMD Opteron class processor, at least 512 MB of RAM, and
approximately 4 GB of free disk space.
<p>
The build will use the tools contained in
<tt>/bin</tt> and
<tt>/usr/bin</tt>
of a standard installation of the Linux operating environment.
You should ensure that these directories are in your
<tt>PATH</tt>.
<p>
Note that some Linux systems have a habit of pre-populating
your environment variables for you, for example <tt>JAVA_HOME</tt>
might get pre-defined for you to refer to the JDK installed on
your Linux system.
You will need to unset <tt>JAVA_HOME</tt>.
It's a good idea to run <tt>env</tt> and verify the
environment variables you are getting from the default system
settings make sense for building the
OpenJDK.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="linux_checklist">Basic Linux Check List</a></h4>
<blockquote>
<ol>
<li>
Install the
<a href="#bootjdk">Bootstrap JDK</a>, set
<tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>.
</li>
<li>
<a href="#importjdk">Optional Import JDK</a>, set
<tt><a href="#ALT_JDK_IMPORT_PATH">ALT_JDK_IMPORT_PATH</a></tt>.
</li>
<li>
Install or upgrade the <a href="#freetype">FreeType development
package</a>.
</li>
<li>
Install
<a href="#ant">Ant</a>,
make sure it is in your PATH.
</li>
<li style="background-color:white">
<!-- OpenJDK 6 Specific -->
Install the
<a href="#motif">Motif header files</a>, set
<tt><a href="#ALT_MOTIF_DIR">ALT_MOTIF_DIR</a></tt>.
</li>
</ol>
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h3><a name="solaris">Basic Solaris System Setup</a></h3>
<blockquote>
The minimum recommended hardware for building the
Solaris SPARC version is an UltraSPARC with 512 MB of RAM.
For building
the Solaris x86 version, a Pentium class processor or better and at
least 512 MB of RAM are recommended.
Approximately 1.4 GB of free disk
space is needed for a 32-bit build.
<p>
If you are building the 64bit version, you should
run the command "isainfo -v" to verify that you have a
64-bit installation, it should say <tt>sparcv9</tt> or
<tt>amd64</tt>.
An additional 7 GB of free disk space is needed
for a 64-bit build.
<p>
The build uses the tools contained in <tt>/usr/ccs/bin</tt>
and <tt>/usr/bin</tt> of a standard developer or full installation of
the Solaris operating environment.
<p>
Solaris patches specific to the JDK can be downloaded from the
<a href="http://sunsolve.sun.com/show.do?target=patches/JavaSE" target="_blank">
SunSolve JDK Solaris patches download page</a>.
You should ensure that the latest patch cluster for
your version of the Solaris operating environment has also
been installed.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="solaris_checklist">Basic Solaris Check List</a></h4>
<blockquote>
<ol>
<li>
Install the
<a href="#bootjdk">Bootstrap JDK</a>, set
<tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>.
</li>
<li>
<a href="#importjdk">Optional Import JDK</a>, set
<tt><a href="#ALT_JDK_IMPORT_PATH">ALT_JDK_IMPORT_PATH</a></tt>.
</li>
<li>
Install the
<a href="#studio">Sun Studio Compilers</a>, set
<a href="#ALT_COMPILER_PATH"><tt>ALT_COMPILER_PATH</tt></a>.
</li>
<li>
Install the
<a href="#cups">CUPS Include files</a>, set
<tt><a href="#ALT_CUPS_HEADERS_PATH">ALT_CUPS_HEADERS_PATH</a></tt>.
</li>
<li>
Install
<a href="#ant">Ant</a>,
make sure it is in your PATH.
</li>
</ol>
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h3><a name="windows">Basic Windows System Setup</a></h3>
<blockquote>
<strong>i586 only:</strong>
The minimum recommended hardware for building the 32bit or X86
Windows version is an Pentium class processor or better, at least
512 MB of RAM, and approximately 600 MB of free disk space.
<strong>
NOTE: The Windows 2000 build machines need to use the
file system NTFS.
Build machines formatted to FAT32 will not work
because FAT32 doesn't support case-sensitivity in file names.
</strong>
<p>
<strong>X64 only:</strong>
The minimum recommended hardware for building
the Windows X64 version is an AMD Opteron class processor, at least 1
GB of RAM, and approximately 10 GB of free disk space.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="paths">Windows Paths</a></h4>
<blockquote>
<strong>Windows:</strong>
Note that GNU make is a historic utility and is based very
heavily on shell scripting, so it does not tolerate the Windows habit
of having spaces in pathnames or the use of the <tt>\</tt>characters in pathnames.
Luckily on most Windows systems, you can use <tt>/</tt>instead of \, and
there is always a 'short' pathname without spaces for any path that
contains spaces.
Unfortunately, this short pathname can be somewhat dynamic and the
formula is difficult to explain.
You can use <tt>cygpath</tt> utility to map pathnames with spaces
or the <tt>\</tt>character into the <tt>C:/</tt> style of pathname
(called 'mixed'), e.g.
<tt>cygpath -s -m "<i>path</i>"</tt>.
<p>
The makefiles will try to translate any pathnames supplied
to it into the <tt>C:/</tt> style automatically.
<p>
Note that use of CYGWIN creates a unique problem with regards to
setting <a href="#path"><tt>PATH</tt></a>. Normally on Windows
the <tt>PATH</tt> variable contains directories
separated with the ";" character (Solaris and Linux uses ":").
With CYGWIN, it uses ":", but that means that paths like "C:/path"
cannot be placed in the CYGWIN version of <tt>PATH</tt> and
instead CYGWIN uses something like <tt>/cygdrive/c/path</tt>
which CYGWIN understands, but only CYGWIN understands.
So be careful with paths on Windows.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="windows_checklist">Basic Windows Check List</a></h4>
<blockquote>
<ol>
<li>
Install the
<a href="#cygwin">CYGWIN product</a>.
</li>
<li>
Install the
<a href="#bootjdk">Bootstrap JDK</a>, set
<tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>.
</li>
<li>
<a href="#importjdk">Optional Import JDK</a>, set
<tt><a href="#ALT_JDK_IMPORT_PATH">ALT_JDK_IMPORT_PATH</a></tt>.
</li>
<li>
Install the
<a href="#msvc">Microsoft Visual Studio .NET 2003 Professional</a> or the
<a href="#mssdk">Microsoft Platform SDK</a>.
</li>
<li>
Setup all environment variables for compilers
(see <a href="#msvc">compilers</a>).
</li>
<li>
Install
<a href="#dxsdk">Microsoft DirectX SDK</a>.
</li>
<li>
Install
<a href="#ant">Ant</a>,
make sure it is in your PATH and set
<tt><a href="#ANT_HOME">ANT_HOME</a></tt>.
</li>
</ol>
</blockquote>
<!-- ------------------------------------------------------ -->
<hr>
<h3><a name="dependencies">Build Dependencies</a></h3>
<blockquote>
Depending on the platform, the OpenJDK build process has some basic
dependencies on components not part of the OpenJDK sources.
Some of these are specific to a platform, some even specific to
an architecture.
Each dependency will have a set of ALT variables that can be set
to tell the makefiles where to locate the component.
In most cases setting these ALT variables may not be necessary
and the makefiles will find defaults on the system in standard
install locations or through component specific variables.
<!-- ------------------------------------------------------ -->
<h4><a name="bootjdk">Bootstrap JDK</a></h4>
<blockquote>
All OpenJDK builds require access to the previously released
JDK 6, this is often called a bootstrap JDK.
<blockquote style="background-color:white">
<!-- OpenJDK 6 Specific -->
Normally the "boot" JDK is the previously released version
of the JDK, so it's unusual for a JDK 6 build like this to
require a JDK 6 "boot".
Unfortunately, it is currently required due to some JDK 6
dependencies in some of the sources.
</blockquote>
The JDK 6 binaries can be downloaded from Sun's
<a href="http://java.sun.com/javase/1.6.0/download.html" target="_blank">JDK 6 download site</a>.
For build performance reasons
is very important that this bootstrap JDK be made available on the
local disk of the machine doing the build.
You should always set
<tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>
to point to the location of
the bootstrap JDK installation, this is the directory pathname
that contains a <tt>bin, lib, and include</tt>
It's also a good idea to also place its <tt>bin</tt> directory
in the <tt>PATH</tt> environment variable, although it's
not required.
<p>
<strong>Solaris:</strong>
Some pre-installed JDK images may be available to you in the
directory <tt>/usr/jdk/instances</tt>.
If you don't set
<tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>
The makefiles will look in that location for a JDK it can use.
<p>
<strong>Linux:</strong>
Many GNU/Linux distributions already include OpenJDK 6. OpenJDK 6
can be used to bootstrap itself, so installing the corresponding
distribution package is sufficient. You'll still need to set
<tt><a href="#ALT_BOOTDIR">ALT_BOOTDIR</a></tt>, though.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="importjdk">Optional Import JDK</a></h4>
<blockquote>
The <tt><a href="#ALT_JDK_IMPORT_PATH">ALT_JDK_IMPORT_PATH</a></tt>
setting is only needed if you are not building the entire
JDK. For example, if you have built the entire JDK once, and
wanted to avoid repeatedly building the Hotspot VM, you could
set this to the location of the previous JDK install image
and the build will copy the needed files from this import area.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="ant">Ant</a></h4>
<blockquote>
All OpenJDK builds require access to least Ant 1.6.5.
The Ant tool is available from the
<a href="http://ant.apache.org" target="_blank">
Ant download site</a>.
You should always make sure <tt>ant</tt> is in your PATH, and
on Windows you may also need to set
<tt><a href="#ANT_HOME">ANT_HOME</a></tt>
to point to the location of
the Ant installation, this is the directory pathname
that contains a <tt>bin and lib</tt>.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="cacerts">Certificate Authority File (cacert)</a></h4>
<blockquote>
See <a href="http://en.wikipedia.org/wiki/Certificate_Authority" target="_blank">
http://en.wikipedia.org/wiki/Certificate_Authority</a>
for a better understanding of the Certificate Authority (CA).
A certificates file named "cacerts"
represents a system-wide keystore with CA certificates.
In JDK and JRE
binary bundles, the "cacerts" file contains root CA certificates from
several public CAs (e.g., VeriSign, Thawte, and Baltimore).
The source contain a cacerts file
without CA root certificates.
Formal JDK builders will need to secure
permission from each public CA and include the certificates into their
own custom cacerts file.
Failure to provide a populated cacerts file
will result in verification errors of a certificate chain during runtime.
The variable
<tt><a href="#ALT_CACERTS_FILE">ALT_CACERTS_FILE</a></tt>
can be used to override the default location of the
cacerts file that will get placed in your build.
By default an empty cacerts file is provided and that should be
fine for most JDK developers.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="compilers">Compilers</a></h4>
<blockquote>
<strong><a name="gcc">Linux gcc/binutils</a></strong>
<blockquote>
The GNU gcc compiler version should be 4 or newer.
The compiler used should be the default compiler installed
in <tt>/usr/bin</tt>.
</blockquote>
<strong><a name="studio">Solaris: Sun Studio</a></strong>
<blockquote>
At a minimum, the
<a href="http://developers.sun.com/sunstudio/index.jsp" target="_blank">
Sun Studio 11 Compilers</a>
(containing version 5.8 of the C and C++ compilers) is required,
with patches from the
<a href="http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/patch-access" target="_blank">
SunSolve web site</a>.
<p>
Set
<a href="#ALT_COMPILER_PATH"><tt>ALT_COMPILER_PATH</tt></a>
to point to the location of
the compiler binaries, and place this location in the <tt>PATH</tt>.
<p>
The Sun Studio Express compilers at:
<a href="http://developers.sun.com/sunstudio/downloads/express.jsp" target="_blank">
Sun Studio Express Download site</a>
are also an option, although these compilers have not
been extensively used yet.
</blockquote>
<strong><a name="msvc">Windows i586: Microsoft Visual Studio .NET 2003 Professional</a></strong>
<blockquote>
The 32-bit OpenJDK Windows build
requires Microsoft Visual Studio .NET 2003 (VS2003) Professional
Edition compiler.
The compiler and other tools are expected to reside
in the location defined by the variable <tt>VS71COMNTOOLS</tt> which
is set by the Microsoft Visual Studio .NET installer.
<p>
Once the compiler is installed,
it is recommended that you run <tt>VCVARS32.BAT</tt>
to set the compiler environment variables
<tt>MSVCDIR</tt>,
<tt>INCLUDE</tt>,
<tt>LIB</tt>, and
<tt>PATH</tt>
prior to building the
OpenJDK.
The above environment variables <b>MUST</b> be set.
<p>
The Microsoft Visual Studio .NET 2005 (VS2005) compiler
will not work at this time due to the new runtime dll
and the manifest requirements.
</blockquote>
<strong><a name="mssdk">Windows X64: Microsoft Platform SDK April 2005</a></strong>
<blockquote>
On <b>X64</b>, the Microsoft Platform Software
Development Kit (SDK), April 2005 Edition compiler,
is required for building the OpenJDK
because it contains the C/C++ compiler.
You will need to minimally install the Core SDK and
the MDAC SDK features of this compiler.
<p>
Once the Platform SDK is installed,
it is recommended that you run <tt>SetEnv.Cmd /X64</tt>
to set the compiler environment variables
<tt>MSSDK</tt>,
<tt>MSTOOLS</tt>,
<tt>INCLUDE</tt>,
<tt>LIB</tt>, and
<tt>PATH</tt>
prior to building the
OpenJDK.
The above environment variables <b>MUST</b> be set.
<p>
Note that this compiler may say it's version is a
Microsoft Visual Studio .NET 2005 (VS2005), but be careful,
it will not match the official VS2005 product.
This Platform SDK compiler is only used on X64 builds.
</blockquote>
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="zip">Zip and Unzip</a></h4>
<blockquote>
Version 2.2 (November 3rd 1997) or newer of the zip utility
and version 5.12 or newer of the unzip utility is needed
to build the JDK.
With Solaris, Linux, and Windows CYGWIN, the zip and unzip
utilities installed on the system should be fine.
Information and the source code for
ZIP.EXE and UNZIP.EXE is available on the
<a href="http://www.info-zip.org"
target="_blank">info-zip web site</a>.
</blockquote>
<!-- ------------------------------------------------------ -->
<h4><a name="cups">Common UNIX Printing System (CUPS) Headers (Solaris & Linux)</a></h4>
<blockquote>
<strong>Solaris:</strong>
CUPS header files are required for building the
OpenJDK on Solaris.
The Solaris header files can be obtained by installing
the package <strong>SFWcups</strong> from the Solaris Software
Companion CD/DVD, these often will be installed into
<tt>/opt/sfw/cups</tt>.
<p>
<strong>Linux:</strong>
CUPS header files are required for building the
OpenJDK on Linux.
The Linux header files are usually available from a "cups"
development package, it's recommended that you try and use
the package provided by the particular version of Linux that
you are using.
<p>
The CUPS header files can always be downloaded from
<a href="http://www.cups.org" target="_blank">www.cups.org</a>.