// Building a custom Mesa on Ubuntu 20.04 Pinebookpro 

!!  EXPERIMENTAL !! 

If something breaks don't blame me :) 
Make backups before making any major changes 


===========================================================
// Used the following latest image 
// https://github.com/ayufan-rock64/linux-build/releases
 
// On Ubuntu 20.04 

// Install mesa-utils and mesa-utils-extra

apt-get install mesa-utils mesa-utils-extra

// Following Mesa related packages are installed on Pinebookpro 

libegl-mesa0 
libegl1-mesa-dev
libgl1-mesa-dev
libgl1-mesa-dri
libglapi-mesa
libgles2-mesa-dev
libglu1-mesa
libglu1-mesa-dev
libglx-mesa0
mesa-utils
mesa-utils-extra 

// apt-mark hold the above packages so we don't overwrite them next time 
// apt-get updates packages

apt-mark hold libegl-mesa0 libegl1-mesa-dev libgl1-mesa-dev libgl1-mesa-dri  libglapi-mesa libgles2-mesa-dev libglu1-mesa libglu1-mesa-dev  libglx-mesa0  mesa-utils mesa-utils-extra

// We also need to install some dependencies - not all are needed but I included
most that I have used so far on Ubuntu 20.04 

apt-get install build-essential 
apt-get install cmake 
apt-get install libaio-dev libbluetooth-dev libbrlapi-dev libbz2-dev
apt-get install libcap-dev libcap-ng-dev libcurl4-gnutls-dev libgtk-3-dev
apt-get install libsasl2-dev libsdl1.2-dev libseccomp-dev libsnappy-dev libssh2-1-dev libvde-dev libvdeplug-dev  libxen-dev liblzo2-dev  valgrind xfslibs-dev libnfs-dev libiscsi-dev

apt-get install meson python3-mako libdrm-dev libzstd-dev bison flex libwayland-egl-backend-dev libx11-xcb-dev libxcb-dri2-0-dev libxcb-dri3-0-dev libxcb-dri3-de libxcb-present-dev libxshmfence-dev llvm llvm-10-dev

// Lets move onto building Mesa 

mkdir $HOME/mesa
cd $HOME/mesa
git clone https://gitlab.freedesktop.org/mesa/mesa -b master 
cd mesa
mkdir build
cd build
meson .. . -Dri-drivers= -Dvulkan-drivers= -Dgallium-drivers=panfrost,kmsro 
sudo ninja install 


// Now comes the dirty hack 

sudo su 
cd /usr/lib/aarch64-linux-gnu/
mkdir OLD
mv dri/ OLD/
mv libEGL* OLD/
mv libGL.so* OLD/
mv libGLESv* OLD/
mv  libgbm.so.1* OLD/
mv libglapi.so.0* OLD/
cp -rv /usr/local/lib/aarch64-linux-gnu/dri/ /usr/lib/aarch64-linux-gnu/
cp /usr/local/lib/aarch64-linux-gnu/libEGL* /usr/lib/aarch64-linux-gnu/
cp /usr/local/lib/aarch64-linux-gnu/libGL.so* /usr/lib/aarch64-linux-gnu/
cp /usr/local/lib/aarch64-linux-gnu/libGLESv* /usr/lib/aarch64-linux-gnu/
cp /usr/local/lib/aarch64-linux-gnu/libgbm.so* /usr/lib/aarch64-linux-gnu/
cp /usr/local/lib/aarch64-linux-gnu/libglapi.so* /usr/lib/aarch64-linux-gnu/
cp /usr/local/lib/aarch64-linux-gnu/pkgconfig/dri.pc /usr/lib/aarch64-linux-gnu/pkgconfig/
cp /usr/local/lib/aarch64-linux-gnu/pkgconfig/egl.pc /usr/lib/aarch64-linux-gnu/pkgconfig/
cp /usr/local/lib/aarch64-linux-gnu/pkgconfig/gbm.pc /usr/lib/aarch64-linux-gnu/pkgconfig/
cp /usr/local/lib/aarch64-linux-gnu/pkgconfig/gl.pc /usr/lib/aarch64-linux-gnu/pkgconfig/
cp /usr/local/lib/aarch64-linux-gnu/pkgconfig/glesv1_cm.pc /usr/lib/aarch64-linux-gnu/pkgconfig/
cp /usr/local/lib/aarch64-linux-gnu/pkgconfig/glesv2.pc /usr/lib/aarch64-linux-gnu/pkgconfig/

// Reboot 

reboot

// Verify that we are using new libs 

glxinfo | grep OpenGL
 OpenGL vendor string: Panfrost
 OpenGL renderer string: Mali T860 (Panfrost)
 OpenGL version string: 2.1 Mesa 20.2.0-devel (git-31392f8371)
 OpenGL shading language version string: 1.20
 OpenGL extensions:
 OpenGL ES profile version string: OpenGL ES 3.0 Mesa 20.2.0-devel (git-31392f8371)
 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
 OpenGL ES profile extensions:

// We should be done now 

// Check with minetest 

sudo apt-get install minetest 
minetest



-----------------------------------------------------------------------------------
//                  -- This breaks the already installed MESA-DEV headers --       
//                                make sure you make backups  

// For future builds of other software please copy over the 
// corresponding includes  

// headers from /usr/local/include/ relevant to MESA should proably be also copied 
// EGL GL GLES GLES2 GLES3 KHR  

sudo su 
cd /usr/include 
mkdir OLD
mv EGL OLD 
mv GL OLD
mv GLES2 OLD 
mv GLES3 OLD 
mv KHR OLD 

cp -rv /usr/local/include/EGL .
cp -rf /usr/local/include/GL . 
cp -rf /usr/local/include/GLES2 .
cp -rf /usr/local/include/GLES3 .
cp -rf /usr/local/include/KHR .

References: 

https://panfrost.freedesktop.org/building-panfrost-mesa.html