tce-load -i compiletc meson Xorg-7.7-dev llvm-dev libvdpau-dev libdrm-dev libva2-dev wayland-dev wayland-protocols libclc-dev python3.6-mako elfutils-dev clang gettext

cd mesa-19.2.3

sudo cp /tmp/tcloop/llvm-dev/usr/local/bin/llvm-config /usr/local/bin
rm -f src/gallium/drivers/swr/rasterizer/jitter/gen_* [llvm bug]

mkdir build
cd build

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe" meson --prefix=/usr/local --buildtype=plain -Dglx=dri -Dosmesa=gallium -Dvalgrind=false -Dgallium-opencl=icd ../

[-fno-rtti and -fno-exceptions fails]

ninja [18m 26.03s]
sudo ninja install

Message: Configuration summary:
        
        prefix:          /usr/local
        libdir:          lib
        includedir:      include
        
        OpenGL:          yes (ES1: yes ES2: yes)
        
        OSMesa:          libOSMesa(Gallium)
        
        DRI platform:    drm
        DRI drivers:     i915 i965 r100 r200 nouveau
        DRI driver dir:  /usr/local/lib/dri
        
        GLX:             DRI-based
        
        EGL:             yes
        EGL drivers:     builtin:egl_dri2 builtin:egl_dri3
        GBM:             yes
        EGL/Vulkan/VL platforms:   x11 wayland drm surfaceless
        
        Vulkan drivers:  amd intel
        Vulkan ICD dir:  share/vulkan/icd.d
        
        llvm:            yes
        llvm-version:    8.0.0
        
        Gallium drivers: r300 r600 radeonsi nouveau virgl svga swrast
        Gallium st:      mesa xa xvmc xvmc vdpau va clover
        HUD lmsensors:   no
        
        Shared-glapi:    yes