>>> mesa3d 19.2.6 Extracting
xzcat /nvmedata/autobuild/instance-1/dl/mesa3d/mesa-19.2.6.tar.xz | /nvmedata/autobuild/instance-1/output-1/host/bin/tar --strip-components=1 -C /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6   -xf -
>>> mesa3d 19.2.6 Patching

Applying 0001-musl.patch using patch: 
patching file src/gallium/winsys/svga/drm/vmw_screen.h

Applying 0002-meson-use-wayland-scanner-provided-by-wayland-scanne.patch using patch: 
patching file meson.build
Hunk #1 succeeded at 1361 (offset 42 lines).
patching file meson_options.txt
Hunk #1 succeeded at 358 with fuzz 2 (offset 34 lines).

Applying 0003-meson-Set-proper-value-for-LIBCLC_INCLUDEDIR.patch using patch: 
patching file src/gallium/state_trackers/clover/meson.build
Hunk #1 succeeded at 41 (offset -8 lines).

Applying 0004-scons-Make-scons-and-meson-agree-about-path-to-glapi-generated-headers.patch using patch: 
patching file src/gallium/targets/libgl-xlib/SConscript
patching file src/gallium/targets/libgl-xlib/xlib.c
Hunk #1 succeeded at 128 (offset -4 lines).
patching file src/mapi/glapi/SConscript
patching file src/mapi/glapi/gen/SConscript
patching file src/mapi/glapi/glapi_dispatch.c
Hunk #1 succeeded at 171 (offset -4 lines).
patching file src/mesa/drivers/osmesa/SConscript
patching file src/mesa/drivers/x11/SConscript
patching file src/mesa/drivers/x11/glxapi.c
Hunk #1 succeeded at 69 (offset -4 lines).
>>> mesa3d 19.2.6 Configuring
rm -rf /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6//build
mkdir -p /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6//build
sed -e "s%@TARGET_CROSS@%/nvmedata/autobuild/instance-1/output-1/host/bin/riscv64-buildroot-linux-musl-%g" -e "s%@TARGET_ARCH@%riscv64%g" -e "s%@TARGET_CPU@%%g" -e "s%@TARGET_ENDIAN@%"little"%g" -e "s%@TARGET_CFLAGS@%`printf '"%s", ' -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  `%g" -e "s%@TARGET_LDFLAGS@%%g" -e "s%@TARGET_CXXFLAGS@%`printf '"%s", ' -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  `%g" -e "s%@HOST_DIR@%/nvmedata/autobuild/instance-1/output-1/host%g"  package/meson/cross-compilation.conf.in > /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6//build/cross-compilation.conf
PATH="/nvmedata/autobuild/instance-1/output-1/host/bin:/nvmedata/autobuild/instance-1/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"  PYTHONNOUSERSITE=y /nvmedata/autobuild/instance-1/output-1/host/bin/meson --prefix=/usr --libdir=lib --default-library=shared --buildtype=release --cross-file=/nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6//build/cross-compilation.conf -Dgallium-omx=disabled -Dpower8=false -Dvalgrind=false -Dllvm=false -Dgallium-opencl=disabled -Dglx=disabled -Dgallium-xa=false -Dshared-glapi=true -Dgallium-drivers=nouveau,tegra -Dgallium-extra-hud=true -Ddri-drivers= -Ddri3=false -Dvulkan-drivers= -Dosmesa=none -Dopengl=true -Dgallium-va=false -Dplatforms= -Dgbm=true -Degl=true -Dgles1=false -Dgles2=false -Dgallium-xvmc=false -Dlibunwind=false -Dgallium-vdpau=false -Dlmsensors=false /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6/ /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6//build
The Meson build system
Version: 0.52.0
Source dir: /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6
Build dir: /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6/build
Build type: cross build
Program python found: YES (/nvmedata/autobuild/instance-1/output-1/host/bin/python)
Project name: mesa
Project version: 19.2.6
C compiler for the build machine: ccache cc (gcc 9.2.1 "cc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008")
C linker for the build machine: GNU ld.bfd 2.33
C++ compiler for the build machine: ccache c++ (gcc 9.2.1 "c++ (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008")
C++ linker for the build machine: GNU ld.bfd 2.33
C compiler for the host machine: /nvmedata/autobuild/instance-1/output-1/host/bin/riscv64-buildroot-linux-musl-gcc (gcc 8.3.0 "riscv64-buildroot-linux-musl-gcc.br_real (Buildroot 2019.11.1-00092-g653676e87b) 8.3.0")
C linker for the host machine: GNU ld.bfd 2.31.1
C++ compiler for the host machine: /nvmedata/autobuild/instance-1/output-1/host/bin/riscv64-buildroot-linux-musl-g++ (gcc 8.3.0 "riscv64-buildroot-linux-musl-g++.br_real (Buildroot 2019.11.1-00092-g653676e87b) 8.3.0")
C++ linker for the host machine: GNU ld.bfd 2.31.1
Build machine cpu family: x86_64
Build machine cpu: x86_64
Host machine cpu family: riscv64
Host machine cpu: 
Target machine cpu family: riscv64
Target machine cpu: 

meson.build:360:4: ERROR: Problem encountered: No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least

A full log can be found at /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6/build/meson-logs/meson-log.txt
make: *** [package/pkg-generic.mk:231: /nvmedata/autobuild/instance-1/output-1/build/mesa3d-19.2.6/.stamp_configured] Error 1
make: Leaving directory '/nvmedata/autobuild/instance-1/buildroot'