Mesa - The 3D Graphics Library
This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported.
Go to the folder with Mesa code and run the commands:
$ meson . build -Dgallium-va=disabled -Dgallium-drivers=virgl -Dvulkan-drivers= -Dglx=xlib -Dplatforms=x11 -Dbuildtype=release
$ ninja -C build
Before building earlier versions of Mesa, you need to apply a fix: "virgl/vtest: fix memory overwrite problem in virgl_vtest_send_get_caps()" https://github.com/Mesa3D/mesa/commit/060936fe0de668127310a65e607fa4b7b48d6f0a
You can find more information in our documentation (docs/install.rst), but the recommended way is to use Meson (docs/meson.rst):
$ meson setup build
$ ninja -C build/
$ sudo ninja -C build/ install
Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on OFTC's #dri-devel, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out Who's Who on IRC.
The next best option is to ask your question in an email to the mailing lists: mesa-dev@lists.freedesktop.org
If you think something isn't working properly, please file a bug report (docs/bugs.rst).
Contributions are welcome, and step-by-step instructions can be found in our documentation (docs/submittingpatches.rst).
Note that Mesa uses gitlab for patches submission, review and discussions.