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 <link rel="stylesheet" type="text/css" href="mesa.css"></head>

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 <H1>Compilation and Installation</H1>

 <ol>
 <li><a href="#unix-x11">Unix / X11</a>
 <li><a href="#windows">Windows</a>
 <li><a href="#vms">VMS</a>
 <li><a href="#other">Other</a>
 </ol>


 <a name="unix-x11">
 <H2>1. Unix/X11 Compilation and Installation</H1>

 <h3>1.1 Compilation</h3>

 <p>
 Mesa may be compiled in several different ways:
 </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 <b>make</b> 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>
 <b>Prerequisites:</b>
 </p>

 <ol>

 <li>
 <p>
 For Mesa 7.0.2 <a href="http://dri.freedesktop.org/libdrm/">
 DRM version 2.3</a> is required.
 </p>
 <p>
 To check if you already have it, run:
 <br>
 <code>pkg-config --modversion libdrm</code>
 </p>
 <p>
 You can download and install a <a href="http://dri.freedesktop.org/libdrm/">
 tarball release</a> or get the code from git with:
 <br>
 <code>git clone git://anongit.freedesktop.org/git/mesa/drm</code>
 <br>
 Then revert to the drm-2.3.0 tag with:
 <br>
 <code>git-reset --hard drm-2.3.0</code>
 </p>
 </li>

 <li>
 Relatively recent
 <a href="http://freedesktop.org/wiki/Software_2fXserver" target="_parent">
 X.org</a> release.
 Mesa depends on a number of X header and library files.
 </li>

 </ol>


 <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>

 </li>
 </ul>


 <p>
 Later, if you want to rebuild for a different configuration run
 <code>make realclean</code> before rebuilding.
 </p>


 <h3>1.2 The libraries</h3>

 <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          12 Mar 26 07:53 libglut.so -> libglut.so.3*
 lrwxrwxrwx    1 brian    users          16 Mar 26 07:53 libglut.so.3 -> libglut.so.3.7.1*
 -rwxr-xr-x    1 brian    users      597754 Mar 26 07:53 libglut.so.3.7.1*
 lrwxrwxrwx    1 brian    users          11 Mar 26 08:04 libGLw.so -> libGLw.so.1*
 lrwxrwxrwx    1 brian    users          15 Mar 26 08:04 libGLw.so.1 -> libGLw.so.1.0.0*
 -rwxr-xr-x    1 brian    users       20750 Mar 26 08:04 libGLw.so.1.0.0*
 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>libglut</b> is the GLUT library.
 <br>
 <b>libGLw</b> is the Xt/Motif OpenGL drawing area widget 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 15607851 Jul 21 12:11 ffb_dri.so*
 -rwxr-xr-x   1 brian users 15148747 Jul 21 12:11 i810_dri.so*
 -rwxr-xr-x   1 brian users 14497814 Jul 21 12:11 i830_dri.so*
 -rwxr-xr-x   1 brian users 16895413 Jul 21 12:11 i915_dri.so*
 -rwxr-xr-x   1 brian users 11320803 Jul 21 12:11 mach64_dri.so
 -rwxr-xr-x   1 brian users 11418014 Jul 21 12:12 mga_dri.so
 -rwxr-xr-x   1 brian users 11064426 Jul 21 12:12 r128_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
 -rwxr-xr-x   1 brian users 11232304 Jul 21 12:13 s3v_dri.so
 -rwxr-xr-x   1 brian users 11062970 Jul 21 12:13 savage_dri.so
 -rwxr-xr-x   1 brian users 11214212 Jul 21 12:13 sis_dri.so
 -rwxr-xr-x   1 brian users 11368736 Jul 21 12:13 tdfx_dri.so
 -rwxr-xr-x   1 brian users 10598868 Jul 21 12:13 trident_dri.so
 -rwxr-xr-x   1 brian users 10997120 Jul 21 12:13 unichrome_dri.so
 </pre>


 <h3>1.3 Running the demos</h3>

 <p>
 If you downloaded/unpacked the MesaDemos-x.y.z.tar.gz archive or
 obtained Mesa from CVS, the <b>progs/</b> directory will contain a
 bunch of demonstration programs.
 </p>

 <p>
 Before running a demo, you may have to set an environment variable
 (such as <b>LD_LIBRARY_PATH</b> on Linux) to indicate where the
 libraries are located.  For example:
 <p>
 <blockquote>
 <b>cd</b> into the Mesa <b>lib/</b> directory.
 <br>
 <b>setenv LD_LIBRARY_PATH ${cwd}</b>   (if using csh or tcsh shell)
 <br>
 or,
 <br>
 <b>export LD_LIBRARY_PATH=${PWD}</b>   (if using bash or sh shell)
 </blockquote>

 <p>
 Next, change to the Mesa/demos/ directory:
 </p>
 <blockquote>
 <b>cd ../progs/demos</b>
 </blockquote>

 <p>
 Run a demo such as gears:
 </p>
 <blockquote>
 <b>./gears</b>
 </blockquote>

 <p>
 If this doesn't work, try the <b>Mesa/progs/xdemos/glxinfo</b> program
 and see that it prints the expected Mesa version number.
 </p>

 <p>
 If you're using Linux or a similar OS, verify that the demo program is
 being linked with the proper library files:
 </p>
 <blockquote>
 <b>ldd gears</b>
 </blockquote>

 <p>
 You should see something like this:
 </p>
 <pre>
         libglut.so.3 => /home/brian/Mesa/lib/libglut.so.3 (0x40013000)
         libGLU.so.1 => /home/brian/Mesa/lib/libGLU.so.1 (0x40051000)
         libGL.so.1 => /home/brian/Mesa/lib/libGL.so.1 (0x400e0000)
         libc.so.6 => /lib/i686/libc.so.6 (0x42000000)
         libm.so.6 => /lib/i686/libm.so.6 (0x403da000)
         libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x403fc000)
         libXmu.so.6 => /usr/X11R6/lib/libXmu.so.6 (0x404da000)
         libXt.so.6 => /usr/X11R6/lib/libXt.so.6 (0x404f1000)
         libXi.so.6 => /usr/X11R6/lib/libXi.so.6 (0x40543000)
         libstdc++.so.5 => /usr/lib/libstdc++.so.5 (0x4054b000)
         libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x405fd000)
         libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x40605000)
         libpthread.so.0 => /lib/i686/libpthread.so.0 (0x40613000)
         /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
         libdl.so.2 => /lib/libdl.so.2 (0x40644000)
         libSM.so.6 => /usr/X11R6/lib/libSM.so.6 (0x40647000)
         libICE.so.6 => /usr/X11R6/lib/libICE.so.6 (0x40650000)
 </pre>

 <p>
 Retrace your steps if this doesn't look right.
 </p>


 <H3>1.4 Installing the header and library files</H3>

 <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>


 <H3>1.5 pkg-config support</H3>

 <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>

 <a name="windows">
 <H2>2. Windows Compilation and Installation</H1>

 <p>
 Please see the <a href="README.WIN32">README.WIN32</a> file.
 </p>


 <a name="vms">
 <H2>3. VMS Compilation and Installation</H1>

 <p>
 Please see the <a href="README.VMS">README.VMS</a> file.
 </p>


 <a name="other">
 <H2>4. Other systems</H1>

 <p>
 Documentation for other environments (some may be very out of date):
 </p>

 <UL>
 <LI><A HREF="README.GGI">README.GGI</A> - GGI
 <LI><A HREF="README.3DFX">README.3DFX</A> - 3Dfx/Glide driver
 <LI><A HREF="README.AMIWIN">README.AMIWIN</A> - Amiga Amiwin
 <LI><A HREF="README.BEOS">README.BEOS</A> - BeOS
 <LI><A HREF="README.D3D">README.D3D</A> - Direct3D driver
 <LI><A HREF="README.DJ">README.DJ</A> - DJGPP
 <LI><A HREF="README.LYNXOS">README.LYNXOS</A> - LynxOS
 <LI><A HREF="README.MINGW32">README.MINGW32</A> - Mingw32
 <LI><A HREF="README.NeXT">README.NeXT</A> - NeXT
 <LI><A HREF="README.OpenStep">README.OpenStep</A> - OpenStep
 <LI><A HREF="README.OS2">README.OS2</A> - OS/2
 <LI><A HREF="README.WINDML">README.WINDML</A> - WindML
 </UL>


 </body>
 </html>
	<HTML>

	<TITLE>Compilation and Installation</TITLE>

	<link rel="stylesheet" type="text/css" href="mesa.css"></head>

	<BODY>


	<H1>Compilation and Installation</H1>

	<ol>
	<li><a href="#unix-x11">Unix / X11</a>
	<li><a href="#windows">Windows</a>
	<li><a href="#vms">VMS</a>
	<li><a href="#other">Other</a>
	</ol>



	<a name="unix-x11">
	<H2>1. Unix/X11 Compilation and Installation</H1>

	<h3>1.1 Compilation</h3>

	<p>
	Mesa may be compiled in several different ways:
	</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 <b>make</b> 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>
	<b>Prerequisites:</b>
	</p>

	<ol>

	<li>
	<p>
	For Mesa 7.0.2 <a href="http://dri.freedesktop.org/libdrm/">
	DRM version 2.3</a> is required.
	</p>
	<p>
	To check if you already have it, run:
	<br>
	<code>pkg-config --modversion libdrm</code>
	</p>
	<p>
	You can download and install a <a href="http://dri.freedesktop.org/libdrm/">
	tarball release</a> or get the code from git with:
	<br>
	<code>git clone git://anongit.freedesktop.org/git/mesa/drm</code>
	<br>
	Then revert to the drm-2.3.0 tag with:
	<br>
	<code>git-reset --hard drm-2.3.0</code>
	</p>
	</li>

	<li>
	Relatively recent
	<a href="http://freedesktop.org/wiki/Software_2fXserver" target="_parent">
	X.org</a> release.
	Mesa depends on a number of X header and library files.
	</li>

	</ol>


	<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>

	</li>
	</ul>


	<p>
	Later, if you want to rebuild for a different configuration run
	<code>make realclean</code> before rebuilding.
	</p>


	<h3>1.2 The libraries</h3>

	<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 12 Mar 26 07:53 libglut.so -> libglut.so.3*
	lrwxrwxrwx 1 brian users 16 Mar 26 07:53 libglut.so.3 -> libglut.so.3.7.1*
	-rwxr-xr-x 1 brian users 597754 Mar 26 07:53 libglut.so.3.7.1*
	lrwxrwxrwx 1 brian users 11 Mar 26 08:04 libGLw.so -> libGLw.so.1*
	lrwxrwxrwx 1 brian users 15 Mar 26 08:04 libGLw.so.1 -> libGLw.so.1.0.0*
	-rwxr-xr-x 1 brian users 20750 Mar 26 08:04 libGLw.so.1.0.0*
	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>libglut</b> is the GLUT library.
	<br>
	<b>libGLw</b> is the Xt/Motif OpenGL drawing area widget 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 15607851 Jul 21 12:11 ffb_dri.so*
	-rwxr-xr-x 1 brian users 15148747 Jul 21 12:11 i810_dri.so*
	-rwxr-xr-x 1 brian users 14497814 Jul 21 12:11 i830_dri.so*
	-rwxr-xr-x 1 brian users 16895413 Jul 21 12:11 i915_dri.so*
	-rwxr-xr-x 1 brian users 11320803 Jul 21 12:11 mach64_dri.so
	-rwxr-xr-x 1 brian users 11418014 Jul 21 12:12 mga_dri.so
	-rwxr-xr-x 1 brian users 11064426 Jul 21 12:12 r128_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
	-rwxr-xr-x 1 brian users 11232304 Jul 21 12:13 s3v_dri.so
	-rwxr-xr-x 1 brian users 11062970 Jul 21 12:13 savage_dri.so
	-rwxr-xr-x 1 brian users 11214212 Jul 21 12:13 sis_dri.so
	-rwxr-xr-x 1 brian users 11368736 Jul 21 12:13 tdfx_dri.so
	-rwxr-xr-x 1 brian users 10598868 Jul 21 12:13 trident_dri.so
	-rwxr-xr-x 1 brian users 10997120 Jul 21 12:13 unichrome_dri.so
	</pre>


	<h3>1.3 Running the demos</h3>

	<p>
	If you downloaded/unpacked the MesaDemos-x.y.z.tar.gz archive or
	obtained Mesa from CVS, the <b>progs/</b> directory will contain a
	bunch of demonstration programs.
	</p>

	<p>
	Before running a demo, you may have to set an environment variable
	(such as <b>LD_LIBRARY_PATH</b> on Linux) to indicate where the
	libraries are located. For example:
	<p>
	<blockquote>
	<b>cd</b> into the Mesa <b>lib/</b> directory.
	<br>
	<b>setenv LD_LIBRARY_PATH ${cwd}</b> (if using csh or tcsh shell)
	<br>
	or,
	<br>
	<b>export LD_LIBRARY_PATH=${PWD}</b> (if using bash or sh shell)
	</blockquote>

	<p>
	Next, change to the Mesa/demos/ directory:
	</p>
	<blockquote>
	<b>cd ../progs/demos</b>
	</blockquote>

	<p>
	Run a demo such as gears:
	</p>
	<blockquote>
	<b>./gears</b>
	</blockquote>

	<p>
	If this doesn't work, try the <b>Mesa/progs/xdemos/glxinfo</b> program
	and see that it prints the expected Mesa version number.
	</p>

	<p>
	If you're using Linux or a similar OS, verify that the demo program is
	being linked with the proper library files:
	</p>
	<blockquote>
	<b>ldd gears</b>
	</blockquote>

	<p>
	You should see something like this:
	</p>
	<pre>
	libglut.so.3 => /home/brian/Mesa/lib/libglut.so.3 (0x40013000)
	libGLU.so.1 => /home/brian/Mesa/lib/libGLU.so.1 (0x40051000)
	libGL.so.1 => /home/brian/Mesa/lib/libGL.so.1 (0x400e0000)
	libc.so.6 => /lib/i686/libc.so.6 (0x42000000)
	libm.so.6 => /lib/i686/libm.so.6 (0x403da000)
	libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x403fc000)
	libXmu.so.6 => /usr/X11R6/lib/libXmu.so.6 (0x404da000)
	libXt.so.6 => /usr/X11R6/lib/libXt.so.6 (0x404f1000)
	libXi.so.6 => /usr/X11R6/lib/libXi.so.6 (0x40543000)
	libstdc++.so.5 => /usr/lib/libstdc++.so.5 (0x4054b000)
	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x405fd000)
	libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x40605000)
	libpthread.so.0 => /lib/i686/libpthread.so.0 (0x40613000)
	/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
	libdl.so.2 => /lib/libdl.so.2 (0x40644000)
	libSM.so.6 => /usr/X11R6/lib/libSM.so.6 (0x40647000)
	libICE.so.6 => /usr/X11R6/lib/libICE.so.6 (0x40650000)
	</pre>

	<p>
	Retrace your steps if this doesn't look right.
	</p>


	<H3>1.4 Installing the header and library files</H3>

	<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>


	<H3>1.5 pkg-config support</H3>

	<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>

	<a name="windows">
	<H2>2. Windows Compilation and Installation</H1>

	<p>
	Please see the <a href="README.WIN32">README.WIN32</a> file.
	</p>




	<a name="vms">
	<H2>3. VMS Compilation and Installation</H1>

	<p>
	Please see the <a href="README.VMS">README.VMS</a> file.
	</p>




	<a name="other">
	<H2>4. Other systems</H1>

	<p>
	Documentation for other environments (some may be very out of date):
	</p>

	<UL>
	<LI><A HREF="README.GGI">README.GGI</A> - GGI
	<LI><A HREF="README.3DFX">README.3DFX</A> - 3Dfx/Glide driver
	<LI><A HREF="README.AMIWIN">README.AMIWIN</A> - Amiga Amiwin
	<LI><A HREF="README.BEOS">README.BEOS</A> - BeOS
	<LI><A HREF="README.D3D">README.D3D</A> - Direct3D driver
	<LI><A HREF="README.DJ">README.DJ</A> - DJGPP
	<LI><A HREF="README.LYNXOS">README.LYNXOS</A> - LynxOS
	<LI><A HREF="README.MINGW32">README.MINGW32</A> - Mingw32
	<LI><A HREF="README.NeXT">README.NeXT</A> - NeXT
	<LI><A HREF="README.OpenStep">README.OpenStep</A> - OpenStep
	<LI><A HREF="README.OS2">README.OS2</A> - OS/2
	<LI><A HREF="README.WINDML">README.WINDML</A> - WindML
	</UL>




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