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<HTML>
<TITLE>Compiling and Installing</TITLE>
<link rel="stylesheet" type="text/css" href="mesa.css"></head>
<BODY>
<H1>Compiling and Installing</H1>
<ol>
<li><a href="#prereq-general">Prerequisites for building</a>
<ul>
<li><a href="#prereq-general">General prerequisites</a>
<li><a href="#prereq-dri">For DRI and hardware acceleration</a>
</ul>
<li><a href="#autoconf">Building with autoconf (Linux/Unix/X11)</a>
<li><a href="#scons">Building with SCons (Windows)</a>
<li><a href="#legacy">Building with legacy Makefiles (deprecated)</a>
<li><a href="#other">Building for other systems</a>
<li><a href="#libs">Library Information</a>
<li><a href="#pkg-config">Building OpenGL programs with pkg-config
</ol>
<a name="prereq-general">
<h1>1. Prerequisites for building</h1>
<h2>1.1 General</h2>
<ul>
<li>lex / yacc - for building the GLSL compiler.
On Linux systems, flex and bison are used.
Versions 2.5.35 and 2.4.1, respectively, (or later) should work.
<br>
<br>
On Windows with MinGW, install flex and bison with:
<pre>mingw-get install msys-flex msys-bison</pre>
</li>
<li>python - Python is needed for building the Gallium components.
Version 2.6.4 or later should work.
<br>
<br>
To build OpenGL ES 1.1 and 2.0 you'll also need
<a href="http://xmlsoft.org/sources/win32/python/libxml2-python-2.7.7.win32-py2.7.exe">libxml2-python</a>.
</li>
</ul>
<a name="prereq-dri">
<h3>1.2 For DRI and hardware acceleration</h3>
<p>
The following are required for DRI-based hardware acceleration with Mesa:
</p>
<ul>
<li><a href="http://xorg.freedesktop.org/releases/individual/proto/"
target="_parent">dri2proto</a> version 2.6 or later
<li><a href="http://dri.freedesktop.org/libdrm/" target="_parent">libDRM</a>
version 2.4.33 or later
<li>Xorg server version 1.5 or later
<li>Linux 2.6.28 or later
</ul>
</p>
<p>
If you're using a fedora distro the following command should install all
the needed dependencies:
<pre>
sudo yum install flex bison imake libtool xorg-x11-proto-devel libdrm-devel \
gcc-c++ xorg-x11-server-devel libXi-devel libXmu-devel libXdamage-devel git \
expat-devel llvm-devel
</pre>
<a name="autoconf">
<H1>2. Building with autoconf (Linux/Unix/X11)</H1>
<p>
The primary method to build Mesa on Unix systems is with autoconf.
</p>
<p>
The general approach is the standard:
<pre>
./configure
make
sudo make install
</pre>
But please read the <a href="autoconf.html">detailed autoconf instructions</a>
for more details.
</p>
<a name="scons">
<H1>3. Building with SCons (Windows)</H1>
<p>
To build Mesa with SCons on Linux or Windows do
</p>
<pre>
scons
</pre>
<p>
The build output will be placed in
build/<i>platform</i>-<i>machine</i>-<i>debug</i>/..., where <i>platform</i> is for
example linux or windows, <i>machine</i> is x86 or x86_64, optionally followed
by -debug for debug builds.
</p>
<p>
To build Mesa with SCons for Windows on Linux using the MinGW crosscompiler toolchain do
</p>
<pre>
scons platform=windows toolchain=crossmingw machine=x86 mesagdi libgl-gdi
</pre>
<p>
This will create:
</p>
<ul>
<li>build/windows-x86-debug/mesa/drivers/windows/gdi/opengl32.dll — Mesa + swrast, binary compatible with Windows's opengl32.dll
<li>build/windows-x86-debug/gallium/targets/libgl-gdi/opengl32.dll — Mesa + Gallium + softpipe, binary compatible with Windows's opengl32.dll
</ul>
<p>
Put them all in the same directory to test them.
</p>
<a name="legacy">
<h1>4. Building with legacy Makefiles (deprecated)</h1>
<p>
The legacy Mesa build system is based on a collection of pre-defined
system configurations.
Some of these might work for older systems not supported by autoconf.
</p>
<p>
To see the list of configurations, just type <code>make</code>.
Then choose a configuration from the list and type <code>make</code>
<em>configname</em>.
</p>
<p>
Mesa may be built in several different ways using the predefined configurations:
</p>
<ul>
<li><b><em>Stand-alone/Xlib mode</em></b> - Mesa will be compiled as
a software renderer using Xlib to do all rendering.
The libGL.so library will be a self-contained rendering library that will
allow you to run OpenGL/GLX applications on any X server (regardless of
whether it supports the GLX X server extension).
You will <em>not</em> be able to use hardware 3D acceleration.
<p>
To compile stand-alone Mesa type <code>make</code> in the top-level directory.
You'll see a list of supported system configurations.
Choose one from the list (such as linux-x86), and type:
</p>
<pre>
make linux-x86
</pre>
<p>This will produce libGL.so and several other libraries</p>
</li>
<li><b><em>DRI/accelerated</em></b> - The DRI hardware drivers for
accelerated OpenGL rendering (for ATI, Intel, Matrox, etc) will be built.
The libGL.so library will support the GLX extension and will load/use
the DRI hardware drivers.
<p>
Build Mesa and the DRI hardware drivers by running
</p>
<pre>
make linux-dri
</pre>
<p>
There are also <code>linux-dri-x86</code>, <code>linux-dri-x86-64</code>,
and <code>linux-ppc</code> configurations which are optimized for those
architectures.
</p>
<p>
Make sure you have the prerequisite versions of DRM and Xserver mentioned
above.
</p>
</ul>
<p>
Later, if you want to rebuild for a different configuration run
<code>make realclean</code> before rebuilding.
</p>
<a name="install">
<H2>Installing the header and library files</H2>
<p>
The standard location for the OpenGL header files on Unix-type systems is
in <code>/usr/include/GL/</code>.
The standard location for the libraries is <code>/usr/lib/</code>.
For more information see, the
<a href="http://oss.sgi.com/projects/ogl-sample/ABI/" target="_parent">
Linux/OpenGL ABI specification</a>.
</p>
<p>
If you'd like Mesa to co-exist with another implementation of OpenGL that's
already installed, you'll have to choose different directories, like
<code>/usr/local/include/GL/</code> and <code>/usr/local/lib/</code>.
</p>
<p>
To install Mesa's headers and libraries, run <code>make install</code>.
But first, check the Mesa/configs/default file and examine the values
of the <b>INSTALL_DIR</b> and <b>DRI_DRIVER_INSTALL_DIR</b> variables.
Change them if needed, then run <code>make install</code>.
</p>
<p>
The variable
<b>DESTDIR</b> may also be used to install the contents to a temporary
staging directory.
This can be useful for package management.
For example: <code>make install DESTDIR=/somepath/</code>
</p>
<p>
Note: at runtime you can use the LD_LIBRARY_PATH environment variable
(on Linux at least) to switch
between the Mesa libraries and other vendor's libraries whenever you want.
This is a handy way to compare multiple OpenGL implementations.
</p>
<a name="other">
<H1>5. Building for other systems</H1>
<p>
Documentation for other environments (some may be very out of date):
</p>
<UL>
<li><A HREF="README.VMS">README.VMS</A> - VMS
<LI><A HREF="README.CYGWIN">README.CYGWIN</A> - Cygwin
<LI><A HREF="README.WIN32">README.WIN32</A> - Win32
</UL>
<a name="libs">
<H1>6. Library Information</H1>
<p>
When compilation has finished, look in the top-level <code>lib/</code>
(or <code>lib64/</code>) directory.
You'll see a set of library files similar to this:
</p>
<pre>
lrwxrwxrwx 1 brian users 10 Mar 26 07:53 libGL.so -> libGL.so.1*
lrwxrwxrwx 1 brian users 19 Mar 26 07:53 libGL.so.1 -> libGL.so.1.5.060100*
-rwxr-xr-x 1 brian users 3375861 Mar 26 07:53 libGL.so.1.5.060100*
lrwxrwxrwx 1 brian users 11 Mar 26 07:53 libGLU.so -> libGLU.so.1*
lrwxrwxrwx 1 brian users 20 Mar 26 07:53 libGLU.so.1 -> libGLU.so.1.3.060100*
-rwxr-xr-x 1 brian users 549269 Mar 26 07:53 libGLU.so.1.3.060100*
lrwxrwxrwx 1 brian users 14 Mar 26 07:53 libOSMesa.so -> libOSMesa.so.6*
lrwxrwxrwx 1 brian users 23 Mar 26 07:53 libOSMesa.so.6 -> libOSMesa.so.6.1.060100*
-rwxr-xr-x 1 brian users 23871 Mar 26 07:53 libOSMesa.so.6.1.060100*
</pre>
<p>
<b>libGL</b> is the main OpenGL library (i.e. Mesa).
<br>
<b>libGLU</b> is the OpenGL Utility library.
<br>
<b>libOSMesa</b> is the OSMesa (Off-Screen) interface library.
</p>
<p>
If you built the DRI hardware drivers, you'll also see the DRI drivers:
</p>
<pre>
-rwxr-xr-x 1 brian users 16895413 Jul 21 12:11 i915_dri.so
-rwxr-xr-x 1 brian users 16895413 Jul 21 12:11 i965_dri.so
-rwxr-xr-x 1 brian users 11849858 Jul 21 12:12 r200_dri.so
-rwxr-xr-x 1 brian users 16050488 Jul 21 12:11 r300_dri.so
-rwxr-xr-x 1 brian users 11757388 Jul 21 12:12 radeon_dri.so
</pre>
<p>
If you built with Gallium support, look in lib/gallium/ for Gallium-based
versions of libGL and device drivers.
</p>
<a name="pkg-config">
<H1>7. Building OpenGL programs with pkg-config</H1>
<p>
Running <code>make install</code> will install package configuration files
for the pkg-config utility.
</p>
<p>
When compiling your OpenGL application you can use pkg-config to determine
the proper compiler and linker flags.
</p>
<p>
For example, compiling and linking a GLUT application can be done with:
</p>
<pre>
gcc `pkg-config --cflags --libs glut` mydemo.c -o mydemo
</pre>
<br>
</body>
</html>
|
