<li><a href="#dri">DRI Driver Options</a></li>
<li><a href="#osmesa">OSMesa Driver Options</a></li>
</ul>
-<li><p><a href="#demos">Demo Program Options</a>
</ol>
+<h2>ATTENTION:</h2>
+<p>
+ The autotools build is being replaced by the <a href="meson.html">meson</a>
+ build system. If you haven't yet now is a good time to try using meson and
+ report any issues you run into.
+</p>
<h2 id="basic">1. Basic Usage</h2>
</pre>
<p>
-This will produce libGL.so and several other libraries depending on the
+This will produce libGL.so and/or several other libraries depending on the
options you have chosen. Later, if you want to rebuild for a different
configuration run <code>make realclean</code> before rebuilding.
</p>
<p>
Some of the generic autoconf options are used with Mesa:
-
-<ul>
-<li><code>--prefix=PREFIX</code> - This is the root directory where
+</p>
+<dl>
+<dt><code>--prefix=PREFIX</code></dt>
+<dd><p>This is the root directory where
files will be installed by <code>make install</code>. The default is
-<code>/usr/local</code>.
-</li>
-<li><code>--exec-prefix=EPREFIX</code> - This is the root directory
+<code>/usr/local</code>.</p>
+</dd>
+
+<dt><code>--exec-prefix=EPREFIX</code></dt>
+<dd><p>This is the root directory
where architecture-dependent files will be installed. In Mesa, this is
only used to derive the directory for the libraries. The default is
-<code>${prefix}</code>.
-</li>
-<li><code>--libdir=LIBDIR</code> - This option specifies the directory
+<code>${prefix}</code>.</p>
+</dd>
+
+<dt><code>--libdir=LIBDIR</code></dt>
+<dd><p>This option specifies the directory
where the GL libraries will be installed. The default is
<code>${exec_prefix}/lib</code>. It also serves as the name of the
library staging area in the source tree. For instance, if the option
<code>--libdir=/usr/local/lib64</code> is used, the libraries will be
created in a <code>lib64</code> directory at the top of the Mesa source
-tree.
-</li>
-<li><code>--enable-static, --disable-shared</code> - By default, Mesa
+tree.</p>
+</dd>
+
+<dt><code>--sysconfdir=DIR</code></dt>
+<dd><p>This option specifies the directory where the configuration
+files will be installed. The default is <code>${prefix}/etc</code>.
+Currently there's only one config file provided when dri drivers are
+enabled - it's <code>drirc</code>.</p>
+</dd>
+
+<dt><code>--datadir=DIR</code></dt>
+<dd><p>This option specifies the directory where the data files will
+be installed. The default is <code>${prefix}/share</code>.
+Currently when dri drivers are enabled, <code>drirc.d/</code> is at
+this place.</p>
+</dd>
+
+<dt><code>--enable-static, --disable-shared</code></dt>
+<dd><p>By default, Mesa
will build shared libraries. Either of these options will force static
libraries to be built. It is not currently possible to build static and
-shared libraries in a single pass.
-</li>
-<li><code>CC, CFLAGS, CXX, CXXFLAGS</code> - These environment variables
+shared libraries in a single pass.</p>
+</dd>
+
+<dt><code>CC, CFLAGS, CXX, CXXFLAGS</code></dt>
+<dd><p>These environment variables
control the C and C++ compilers used during the build. By default,
-<code>gcc</code> and <code>g++</code> are used with the options
-<code>"-g -O2"</code>.
-</li>
-<li><code>LDFLAGS</code> - An environment variable specifying flags to
-pass when linking programs. These are normally empty, but can be used
-to direct the linker to use libraries in nonstandard directories. For
-example, <code>LDFLAGS="-L/usr/X11R6/lib"</code>.
-</li>
-<li><code>PKG_CONFIG_PATH</code> - When available, the
-<code>pkg-config</code> utility is used to search for external libraries
+<code>gcc</code> and <code>g++</code> are used and the debug/optimisation
+level is left unchanged.</p>
+</dd>
+
+<dt><code>LDFLAGS</code></dt>
+<dd><p>An environment variable specifying flags to
+pass when linking programs. These should be empty and
+<code>PKG_CONFIG_PATH</code> is recommended to be used instead. If needed
+it can be used to direct the linker to use libraries in nonstandard
+directories. For example, <code>LDFLAGS="-L/usr/X11R6/lib"</code>.</p>
+</dd>
+
+<dt><code>PKG_CONFIG_PATH</code></dt>
+<dd><p>The
+<code>pkg-config</code> utility is a hard requirement for configuring and
+building mesa. It is used to search for external libraries
on the system. This environment variable is used to control the search
path for <code>pkg-config</code>. For instance, setting
<code>PKG_CONFIG_PATH=/usr/X11R6/lib/pkgconfig</code> will search for
package metadata in <code>/usr/X11R6</code> before the standard
-directories.
-</li>
-</ul>
+directories.</p>
+</dd>
+</dl>
<p>
There are also a few general options for altering the Mesa build:
-<ul>
-<li><code>--with-x</code> - When the X11 development libraries are
-needed, the <code>pkg-config</code> utility <a href="#pkg-config">will
-be used</a> for locating them. If they cannot be found through
-<code>pkg-config</code> a fallback routing using <code>imake</code> will
-be used. In this case, the <code>--with-x</code>,
-<code>--x-includes</code> and <code>--x-libraries</code> options can
-control the use of X for Mesa.
-</li>
-<li><code>--enable-gl-osmesa</code> - The <a href="osmesa.html">OSMesa
-library</a> can be built on top of libGL for drivers that provide it.
-This option controls whether to build libOSMesa. By default, this is
-enabled for the Xlib driver and disabled otherwise. Note that this
-option is different than using OSMesa as the driver.
-</li>
-<li><code>--enable-debug</code> - This option will enable compiler
-options and macros to aid in debugging the Mesa libraries.
-</li>
-<li><code>--disable-asm</code> - There are assembly routines
+</p>
+<dl>
+<dt><code>--enable-debug</code></dt>
+<dd><p>This option will set the compiler debug/optimisation levels (if the user
+hasn't already set them via the CFLAGS/CXXFLAGS) and macros to aid in
+debugging the Mesa libraries.</p>
+
+<p>Note that enabling this option can lead to noticeable loss of performance.</p>
+
+<dt><code>--disable-asm</code></dt>
+<dd><p>There are assembly routines
available for a few architectures. These will be used by default if
one of these architectures is detected. This option ensures that
-assembly will not be used.
-</li>
-<li><code>--enable-32-bit, --enable-64-bit</code> - By default, the
-build will compile code as directed by the environment variables
-<code>CC</code>, <code>CFLAGS</code>, etc. If the compiler is
-<code>gcc</code>, these options offer a helper to add the compiler flags
-to force 32- or 64-bit code generation as used on the x86 and x86_64
-architectures.
-</li>
-</ul>
+assembly will not be used.</p>
+</dd>
+
+<dt><code>--build=</code></dt>
+<dt><code>--host=</code></dt>
+<dd><p>By default, the build will compile code for the architecture that
+it's running on. In order to build cross-compile Mesa on a x86-64 machine
+that is to run on a i686, one would need to set the options to:</p>
+
+<p><code>--build=x86_64-pc-linux-gnu --host=i686-pc-linux-gnu</code></p>
+
+Note that these can vary from distribution to distribution. For more
+information check with the
+<a href="https://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Specifying-Target-Triplets.html">
+autoconf manual</a>.
+Note that you will need to correctly set <code>PKG_CONFIG_PATH</code> as well.
+
+
+<p>In some cases a single compiler is capable of handling both architectures
+(multilib) in that case one would need to set the <code>CC,CXX</code> variables
+appending the correct machine options. Seek your compiler documentation for
+further information -
+<a href="https://gcc.gnu.org/onlinedocs/gcc/Submodel-Options.html"> gcc
+machine dependent options</a></p>
+
+<p>In addition to specifying correct <code>PKG_CONFIG_PATH</code> for the target
+architecture, the following should be sufficient to configure multilib Mesa</p>
+
+<code>./configure CC="gcc -m32" CXX="g++ -m32" --build=x86_64-pc-linux-gnu --host=i686-pc-linux-gnu ...</code>
+</dd>
+</dl>
-<h2 id="driver">2. Driver Options</h2>
+<h2 id="driver">2. GL Driver Options</h2>
<p>
There are several different driver modes that Mesa can use. These are
described in more detail in the <a href="install.html">basic
installation instructions</a>. The Mesa driver is controlled through the
-configure option --with-driver. There are currently three supported
-options in the configure script.
+configure options <code>--enable-glx</code> and <code>--enable-osmesa</code>
</p>
-<h3 id="xlib">Xlib</h3><p>This is the default mode for building Mesa.
+<h3 id="xlib">Xlib</h3><p>
It uses Xlib as a software renderer to do all rendering. It corresponds
-to the option <code>--with-driver=xlib</code>. The libX11 and libXext
-libraries, as well as the X11 development headers, will be need to
-support the Xlib driver.
+to the option <code>--enable-glx=xlib</code> or <code>--enable-glx=gallium-xlib</code>.
<h3 id="dri">DRI</h3><p>This mode uses the DRI hardware drivers for
-accelerated OpenGL rendering. Enable the DRI drivers with the option
-<code>--with-driver=dri</code>. See the <a href="install.html">basic
-installation instructions</a> for details on prerequisites for the DRI
-drivers.
+accelerated OpenGL rendering. To enable use <code>--enable-glx=dri
+--enable-dri</code>.
<!-- DRI specific options -->
<dl>
<dt><code>--enable-glx-tls</code> <dd><p>
Enable Thread Local Storage (TLS) in
GLX.
-<dt><code>--with-expat=DIR</code> <dd> The DRI-enabled libGL uses expat to
-parse the DRI configuration files in <code>/etc/drirc</code> and
+<dt><code>--with-expat=DIR</code>
+<dd><p><strong>DEPRECATED</strong>, use <code>PKG_CONFIG_PATH</code> instead.</p>
+<p>The DRI-enabled libGL uses expat to
+parse the DRI configuration files in <code>${sysconfdir}/drirc</code> and
<code>~/.drirc</code>. This option allows a specific expat installation
to be used. For example, <code>--with-expat=/usr/local</code> will
search for expat headers and libraries in <code>/usr/local/include</code>
<h3 id="osmesa">OSMesa </h3><p> No libGL is built in this
mode. Instead, the driver code is built into the Off-Screen Mesa
(OSMesa) library. See the <a href="osmesa.html">Off-Screen Rendering</a>
-page for more details.
+page for more details. It corresponds to the option
+<code>--enable-osmesa</code>.
<!-- OSMesa specific options -->
<dl>
<h2 id="library">3. Library Options</h2>
<p>
-The configure script provides more fine grained control over the GL
-libraries that will be built. More details on the specific GL libraries
-can be found in the <a href="install.html">basic installation
-instructions</a>.
-
-
-<h2 id="demos">4. Demo Program Options</h2>
-
-<p>
-There are many demonstration programs in the MesaDemos tarball. If the
-programs are available when <code>./configure</code> is run, a subset of
-the programs will be built depending on the driver and library options
-chosen. See the directory <code>progs</code> for the full set of demos.
-
-<dl>
-<dt><code>--with-demos=DEMOS,DEMOS,...</code>
-<dd><p> This option allows a
-specific set of demo programs to be built. For example,
-<code>--with-demos="xdemos,slang"</code>. Beware that if this option is
-used, it will not be ensured that the necessary GL libraries will be
-available.
-<dt><code>--without-demos</code> <dd><p> This completely disables building the
-demo programs. It is equivalent to <code>--with-demos=no</code>.
-</dl>
+The configure script provides more fine grained control over the libraries
+that will be built.
</div>
</body>
projects / mesa.git / blobdiff