tce-load -i compiletc gcc_libs-dev libXdamage-dev libXext-dev libdrm-dev libxshmfence-dev nettle-dev libpthread-stubs xorg-proto-dev libudev-dev libva-dev
wayland-dev

cd mesa-12.0.3

CC="gcc -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe" CXX="g++ -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static --enable-shared --with-gallium-drivers=vc4 --disable-gles1 --disable-gles2 --with-dri-drivers=swrast --enable-dri3 --enable-glx-tls --disable-omx --with-egl-platforms="drm,wayland,x11"

-Dgallium-drivers="vc4,v3d,kmsro"
error: Unknown Gallium driver: kmsro/v3d
kmsro is needed for render-only gpus like mali, vivante, vc4, v3d etc
swrast is a fallback

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [53m 3.61s]
sudo make install

https://intestinate.com/pilfs/beyond.html

        prefix:          /usr/local
        exec_prefix:     ${prefix}
        libdir:          ${exec_prefix}/lib
        includedir:      ${prefix}/include

        OpenGL:          yes (ES1: no ES2: no)

        OSMesa:          no

        DRI platform:    drm
        DRI drivers:     swrast 
        DRI driver dir:  ${libdir}/dri
        GLX:             DRI-based

        EGL:             yes
        EGL platforms:   drm wayland x11
        EGL drivers:     builtin:egl_dri2 builtin:egl_dri3

        Vulkan drivers:  no

        llvm:            no

        Gallium drivers: vc4
        Gallium st:      mesa va

        Shader cache:    yes
        With SHA1 from:  libnettle

        Shared libs:     yes
        Static libs:     no
        Shared-glapi:    yes

        CFLAGS:          -g -O2 -Wall -std=c99 -Werror=implicit-function-declaration -Werror=missing-prototypes -fno-strict-aliasing -fno-math-errno -fno-trapping-math -fno-builtin-memcmp
        CXXFLAGS:        -g -O2 -Wall -fno-strict-aliasing -fno-builtin-memcmp
        Macros:          -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D_GNU_SOURCE -DNDEBUG -DHAVE_XLOCALE_H -DHAVE_SYS_SYSCTL_H -DHAVE_STRTOF -DHAVE_MKOSTEMP -DHAVE_DLOPEN -DHAVE_POSIX_MEMALIGN -DHAVE_LIBDRM -DHAVE_SHA1 -DGLX_USE_DRM -DHAVE_LIBUDEV -DGLX_INDIRECT_RENDERING -DGLX_DIRECT_RENDERING -DGLX_USE_TLS -DHAVE_ALIAS -DHAVE_DRI3 -DHAVE_MINCORE

        PYTHON2: