Compiling and Installing¶
1. Prerequisites for building¶
Meson is required when building on *nix platforms and on Windows.
Android Build system when building as native Android component. Meson is used when building ARC.
The following compilers are known to work, if you know of others or you’re willing to maintain support for other compiler get in touch.
GCC 8.0.0 or later (some parts of Mesa may require later versions)
Clang 5.0 or later (some parts of Mesa may require later versions)
Microsoft Visual Studio 2019 Version 16.11 or later and Windows SDK of at least 20348 is required, for building on Windows.
Third party/extra tools.¶
Python - Python 3.6 or newer is required.
Python Mako module - Python Mako module is required. Version 0.8.0 or later should work.
Lex / Yacc - for building the Mesa IR and GLSL compiler.
On Linux systems, Flex and Bison versions 2.5.35 and 2.4.1, respectively, (or later) should work. On Windows with MinGW, install Flex and Bison with:
mingw-get install msys-flex msys-bison
For MSVC on Windows, install Win flex-bison.
Some versions can be buggy (e.g. Flex 2.6.2) so do try others if things fail.
The requirements depends on the features selected at configure stage. Check/install the respective development package as prompted by the configure error message.
Here are some common ways to retrieve most/all of the dependencies based on the packaging tool used by your distro.
zypper source-install --build-deps-only Mesa # openSUSE/SLED/SLES yum-builddep mesa # yum Fedora, OpenSuse(?) dnf builddep mesa # dnf Fedora apt-get build-dep mesa # Debian and derivatives ... # others
2. Building with meson¶
Meson is the latest build system in mesa, it is currently able to build for *nix systems like Linux and BSD, macOS, Haiku, and Windows.
The general approach is:
meson setup builddir/ meson compile -C builddir/ sudo meson install -C builddir/
On Windows you can also use the Visual Studio backend
meson setup builddir --backend=vs cd builddir msbuild mesa.sln /m
Please read the detailed meson instructions for more information
3. Running against a local build¶
It’s often necessary or useful when debugging driver issues or testing new
branches to run against a local build of Mesa without doing a system-wide
install. To do this, choose a temporary location for the install. A directory
installdir inside your mesa tree is as good as anything. All of the
commands below will assume
$MESA_INSTALLDIR is an absolute path to this
First, configure Mesa and install in the temporary location:
meson setup builddir/ -Dprefix="$MESA_INSTALLDIR" OTHER_OPTIONS meson install -C builddir/
OTHER_OPTIONS is replaced by any meson configuration options you may
want. For instance, if you want to build the LLVMpipe drivers, it would look
meson setup builddir/ -Dprefix="$MESA_INSTALLDIR" \ -Dgallium-drivers=swrast -Dvulkan-drivers=swrast meson install -C builddir/
Once Mesa has built and installed to
$MESA_INSTALLDIR, you can run any app
against your temporary install by setting the right environment variables.
Which variable you have to set depends on the API.
You may need to use
lib instead of
lib64 on some systems or a full
library specifier on debian. Look inside
installdir for the directory that
libGL.so and use that one.
my_icd.json is replaced with the actual ICD json file name. This
will depend on your driver. For instance, the 64-bit Lavapipe driver ICD file
Unlike Vulkan, OpenCL takes a path to the whole
vendors folder and will
enumerate any drivers found there.
Troubleshooting local builds¶
If you are trying to run an app against a local build and it’s not working, here are a few things to check:
Double-check your paths and try with the simplest app you can. Before banging your head on a Steam game, make sure your path works with
Watch out for wrapper scripts. Some more complex apps such as games have big start-up scripts. Sometimes those scripts scrub the environment or set
LD_LIBRARY_PATHto something in the game’s install directory.
Is your Mesa build the same arch as your app? Lots of games are still 32-bit and your Mesa build is probably 64-bit by default.
32 and 64-bit builds in the same local install directory doesn’t typically work. Distributions go to great lengths to make this work in your system install and it’s hard to get it right for a local install. If you’ve recently built 64-bit and are now building 32-bit, throw away the install directory first to prevent conflicts.
4. Building with AOSP (Android)¶
5. Library Information¶
When compilation has finished, look in the top-level
lib64/) directory. You’ll see a set of library files similar to
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 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*
libGL is the main OpenGL library (i.e. Mesa), while libOSMesa is the OSMesa (Off-Screen) interface library.
If you built the DRI hardware drivers, you’ll also see the DRI drivers:
-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 11757388 Jul 21 12:12 radeon_dri.so
If you built with Gallium support, look in lib/gallium/ for Gallium-based versions of libGL and device drivers.
6. Building OpenGL programs with pkg-config¶
meson install will install package configuration files for
the pkg-config utility.
When compiling your OpenGL application you can use pkg-config to determine the proper compiler and linker flags.
For example, compiling and linking a GLUT application can be done with:
gcc `pkg-config --cflags --libs glut` mydemo.c -o mydemo