>>> mesa3d 21.3.3 Extracting
xzcat /home/buildroot/autobuild/instance-2/dl/mesa3d/mesa-21.3.3.tar.xz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3   -xf -
>>> mesa3d 21.3.3 Patching

Applying 0001-c99_math-import-isinf-for-uclibc-based-toolchains.patch using patch: 
patching file include/c99_math.h

Applying 0002-meson-Set-proper-value-for-LIBCLC_INCLUDEDIR.patch using patch: 
patching file src/gallium/frontends/clover/meson.build

Applying 0003-vc4-add-meson-option-to-disable-optional-neon-suppor.patch using patch: 
patching file meson_options.txt
Hunk #1 succeeded at 133 (offset 10 lines).
patching file src/gallium/drivers/vc4/meson.build
patching file src/gallium/drivers/vc4/vc4_tiling.h

Applying 0004-src-util-rand_xor-Include-stddef.h-to-fix-build-erro.patch using patch: 
patching file src/util/rand_xor.c

Applying 0005-src-util-futex.h-fix-build-on-32-bit-architectures-u.patch using patch: 
patching file src/util/futex.h

Applying 0006-fix-valist.patch using patch: 
patching file src/util/u_printf.h

Applying 0007-fix-cpp-detection.patch using patch: 
patching file include/c11_compat.h
>>> mesa3d 21.3.3 Configuring
rm -rf /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3//build
mkdir -p /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3//build
sed -e 's%@TARGET_CROSS@%/home/buildroot/autobuild/instance-2/output-1/host/bin/powerpc-buildroot-linux-uclibc-%g' -e 's%@TARGET_ARCH@%ppc%g' -e 's%@TARGET_CPU@%%g' -e 's%@TARGET_ENDIAN@%big%g' -e "s%@TARGET_CFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-Os', '-g0'%g" -e "s%@TARGET_LDFLAGS@%%g" -e "s%@TARGET_CXXFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-Os', '-g0'%g" -e 's%@HOST_DIR@%/home/buildroot/autobuild/instance-2/output-1/host%g' -e 's%@STAGING_DIR@%/home/buildroot/autobuild/instance-2/output-1/host/powerpc-buildroot-linux-uclibc/sysroot%g' -e 's%@STATIC@%false%g' -e "/^\[binaries\]$/s:$::" -e "/^\[properties\]$/s:$::" package/meson/cross-compilation.conf.in > /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3//build/cross-compilation.conf
PATH="/home/buildroot/autobuild/instance-2/output-1/host/bin:/home/buildroot/autobuild/instance-2/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" CC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++"  PYTHONNOUSERSITE=y /home/buildroot/autobuild/instance-2/output-1/host/bin/meson --prefix=/usr --libdir=lib --default-library=shared --buildtype=release --cross-file=/home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3//build/cross-compilation.conf -Db_pie=false -Dstrip=false -Dbuild.pkg_config_path=/home/buildroot/autobuild/instance-2/output-1/host/lib/pkgconfig -Dgallium-omx=disabled -Dpower8=disabled -Ddri3=disabled -Dllvm=disabled -Dgallium-opencl=disabled -Dglx=disabled -Dgallium-xa=disabled -Dgallium-vc4-neon=disabled -Dgallium-drivers= -Dgallium-extra-hud=false -Ddri-drivers= -Dvulkan-drivers= -Dosmesa=false -Dopengl=true -Dgallium-va=disabled -Dplatforms= -Dgbm=disabled -Degl=disabled -Dgles1=disabled -Dgles2=disabled -Dgallium-xvmc=disabled -Dvalgrind=disabled -Dlibunwind=disabled -Dgallium-vdpau=disabled -Dlmsensors=disabled -Dzstd=disabled -Dglvnd=true /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3/ /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3//build
The Meson build system
Version: 0.61.0
Source dir: /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3
Build dir: /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3/build
Build type: cross build
Program python3 found: YES (/home/buildroot/autobuild/instance-2/output-1/host/bin/python3)
Project name: mesa
Project version: 21.3.3
C compiler for the host machine: /home/buildroot/autobuild/instance-2/output-1/host/bin/powerpc-buildroot-linux-uclibc-gcc (gcc 10.3.0 "powerpc-buildroot-linux-uclibc-gcc.br_real (Buildroot 2021.05-3978-g9096036f00c) 10.3.0")
C linker for the host machine: /home/buildroot/autobuild/instance-2/output-1/host/bin/powerpc-buildroot-linux-uclibc-gcc ld.bfd 2.36.1
C++ compiler for the host machine: /home/buildroot/autobuild/instance-2/output-1/host/bin/powerpc-buildroot-linux-uclibc-g++ (gcc 10.3.0 "powerpc-buildroot-linux-uclibc-g++.br_real (Buildroot 2021.05-3978-g9096036f00c) 10.3.0")
C++ linker for the host machine: /home/buildroot/autobuild/instance-2/output-1/host/bin/powerpc-buildroot-linux-uclibc-g++ ld.bfd 2.36.1
C compiler for the build machine: /usr/bin/gcc (gcc 6.3.0 "gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516")
C linker for the build machine: /usr/bin/gcc ld.bfd 2.28
C++ compiler for the build machine: /usr/bin/g++ (gcc 6.3.0 "g++ (Debian 6.3.0-18+deb9u1) 6.3.0 20170516")
C++ linker for the build machine: /usr/bin/g++ ld.bfd 2.28
Build machine cpu family: x86_64
Build machine cpu: x86_64
Host machine cpu family: ppc
Host machine cpu: 
Target machine cpu family: ppc
Target machine cpu: 

../output-1/build/mesa3d-21.3.3/meson.build:542:4: ERROR: Problem encountered: glvnd requires DRI based GLX and/or EGL

A full log can be found at /home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3/build/meson-logs/meson-log.txt
package/pkg-generic.mk:273: recipe for target '/home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3/.stamp_configured' failed
make: *** [/home/buildroot/autobuild/instance-2/output-1/build/mesa3d-21.3.3/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/autobuild/instance-2/buildroot'