>>> mesa3d 21.1.5 Extracting
xzcat /tmp/instance-0/dl/mesa3d/mesa-21.1.5.tar.xz | tar --strip-components=1 -C /tmp/instance-0/output-1/build/mesa3d-21.1.5   -xf -
>>> mesa3d 21.1.5 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
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
>>> mesa3d 21.1.5 Configuring
rm -rf /tmp/instance-0/output-1/build/mesa3d-21.1.5//build
mkdir -p /tmp/instance-0/output-1/build/mesa3d-21.1.5//build
sed -e 's%@TARGET_CROSS@%/tmp/instance-0/output-1/host/bin/x86_64-linux-%g' -e 's%@TARGET_ARCH@%x86_64%g' -e 's%@TARGET_CPU@%%g' -e 's%@TARGET_ENDIAN@%little%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@%/tmp/instance-0/output-1/host%g' -e 's%@STAGING_DIR@%/tmp/instance-0/output-1/host/x86_64-buildroot-linux-musl/sysroot%g' -e 's%@STATIC@%false%g' -e "/^\[binaries\]$/s:$::" -e "/^\[properties\]$/s:$::" package/meson/cross-compilation.conf.in > /tmp/instance-0/output-1/build/mesa3d-21.1.5//build/cross-compilation.conf
PATH="/tmp/instance-0/output-1/host/bin:/tmp/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin" CC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++"  PYTHONNOUSERSITE=y /tmp/instance-0/output-1/host/bin/meson --prefix=/usr --libdir=lib --default-library=shared --buildtype=debug --cross-file=/tmp/instance-0/output-1/build/mesa3d-21.1.5//build/cross-compilation.conf -Db_pie=false -Dstrip=false -Dbuild.pkg_config_path=/tmp/instance-0/output-1/host/lib/pkgconfig -Dgallium-omx=disabled -Dpower8=disabled -Dllvm=disabled -Dgallium-opencl=disabled -Dglx=disabled -Dgallium-xa=disabled -Dgallium-vc4-neon=disabled -Dshared-glapi=enabled -Dgallium-drivers=etnaviv,swrast -Dgallium-extra-hud=true -Ddri3=disabled -Dshared-glapi=enabled -Dglx-direct=true -Ddri-drivers=r100 -Dvulkan-drivers= -Dosmesa=true -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 /tmp/instance-0/output-1/build/mesa3d-21.1.5/ /tmp/instance-0/output-1/build/mesa3d-21.1.5//build
The Meson build system
Version: 0.58.2
Source dir: /tmp/instance-0/output-1/build/mesa3d-21.1.5
Build dir: /tmp/instance-0/output-1/build/mesa3d-21.1.5/build
Build type: cross build
Program python found: YES (/usr/bin/python)
Project name: mesa
Project version: 21.1.5
C compiler for the host machine: /tmp/instance-0/output-1/host/bin/x86_64-linux-gcc (gcc 9.3.0 "x86_64-linux-gcc.br_real (Buildroot 2020.08-14-ge5a2a90) 9.3.0")
C linker for the host machine: /tmp/instance-0/output-1/host/bin/x86_64-linux-gcc ld.bfd 2.33.1
C++ compiler for the host machine: /tmp/instance-0/output-1/host/bin/x86_64-linux-g++ (gcc 9.3.0 "x86_64-linux-g++.br_real (Buildroot 2020.08-14-ge5a2a90) 9.3.0")
C++ linker for the host machine: /tmp/instance-0/output-1/host/bin/x86_64-linux-g++ ld.bfd 2.33.1
C compiler for the build machine: /usr/bin/gcc (gcc 9.3.0 "gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0")
C linker for the build machine: /usr/bin/gcc ld.bfd 2.34
C++ compiler for the build machine: /usr/bin/g++ (gcc 9.3.0 "g++ (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0")
C++ linker for the build machine: /usr/bin/g++ ld.bfd 2.34
Build machine cpu family: x86_64
Build machine cpu: x86_64
Host machine cpu family: x86_64
Host machine cpu: 
Target machine cpu family: x86_64
Target machine cpu: 
Found CMake: NO
Run-time dependency clang found: NO (tried cmake)

../output-1/build/mesa3d-21.1.5/meson.build:520:4: ERROR: Problem encountered: building dri drivers require at least one windowing system

A full log can be found at /tmp/instance-0/output-1/build/mesa3d-21.1.5/build/meson-logs/meson-log.txt
make: *** [package/pkg-generic.mk:260: /tmp/instance-0/output-1/build/mesa3d-21.1.5/.stamp_configured] Error 1
make: Leaving directory '/tmp/instance-0/buildroot'