Hi, I'm upgrading to hardknott. The meta-raspberry layer does not have a hardknott branch, so I'm building with the master branch. Does anyone know why this error occurs when building mesa-gl? ERROR: mesa-gl-2_21.0.1-r0 do_compile: Execution of '/home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/temp/run.do_compile.31992' failed with exit code 1: [1/7] arm-poky-linux-gnueabi-g++ -mthumb -mfpu=neon-vfpv4 -mfloat-abi=hard -mcpu=cortex-a7 -fstack-protector-strong -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=/home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot -o src/gbm/libgbm.so.1.0.0 src/gbm/libgbm.so.1.0.0.p/main_backend.c.o src/gbm/libgbm.so.1.0.0.p/main_gbm.c.o -Wl,--as-needed -Wl,--no-undefined -shared -fPIC -Wl,--start-group -Wl,-soname,libgbm.so.1 -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -Wl,-z,relro,-z,now src/loader/libloader.a src/util/libmesa_util.a src/util/format/libmesa_format.a src/util/libxmlconfig.a -Wl,--gc-sections -ldl -pthread /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot/usr/lib/libz.so -lm /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot/usr/lib/libexpat.so /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot/usr/lib/libdrm.so -Wl,--end-group FAILED: src/gbm/libgbm.so.1.0.0 arm-poky-linux-gnueabi-g++ -mthumb -mfpu=neon-vfpv4 -mfloat-abi=hard -mcpu=cortex-a7 -fstack-protector-strong -O2 -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=/home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot -o src/gbm/libgbm.so.1.0.0 src/gbm/libgbm.so.1.0.0.p/main_backend.c.o src/gbm/libgbm.so.1.0.0.p/main_gbm.c.o -Wl,--as-needed -Wl,--no-undefined -shared -fPIC -Wl,--start-group -Wl,-soname,libgbm.so.1 -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -Wl,-z,relro,-z,now src/loader/libloader.a src/util/libmesa_util.a src/util/format/libmesa_format.a src/util/libxmlconfig.a -Wl,--gc-sections -ldl -pthread /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot/usr/lib/libz.so -lm /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot/usr/lib/libexpat.so /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot/usr/lib/libdrm.so -Wl,--end-group /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot-native/usr/bin/arm-poky-linux-gnueabi/../../libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/10.2.0/ld: src/gbm/libgbm.so.1.0.0.p/main_backend.c.o: in function `_gbm_create_device': /usr/src/debug/mesa-gl/2_21.0.1-r0/build/../mesa-21.0.1/src/gbm/main/backend.c:104: undefined reference to `gbm_dri_backend' collect2: error: ld returned 1 exit status [2/7] /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/recipe-sysroot-native/usr/bin/python3-native/python3 ../mesa-21.0.1/bin/git_sha1_gen.py --output src/git_sha1.h [3/4] rm -f src/mesa/libmesa_classic.a && arm-poky-linux-gnueabi-gcc-ar csrD src/mesa/libmesa_classic.a src/mesa/libmesa_classic.a.p/math_m_xform.c.o src/mesa/libmesa_classic.a.p/tnl_t_context.c.o src/mesa/libmesa_classic.a.p/tnl_t_draw.c.o src/mesa/libmesa_classic.a.p/tnl_t_pipeline.c.o src/mesa/libmesa_classic.a.p/tnl_t_rebase.c.o src/mesa/libmesa_classic.a.p/tnl_t_split.c.o src/mesa/libmesa_classic.a.p/tnl_t_split_copy.c.o src/mesa/libmesa_classic.a.p/tnl_t_split_inplace.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_fog.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_light.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_normals.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_points.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_program.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_render.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_texgen.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_texmat.c.o src/mesa/libmesa_classic.a.p/tnl_t_vb_vertex.c.o src/mesa/libmesa_classic.a.p/tnl_t_vertex.c.o src/mesa/libmesa_classic.a.p/tnl_t_vertex_generic.c.o src/mesa/libmesa_classic.a.p/tnl_t_vertex_sse.c.o src/mesa/libmesa_classic.a.p/tnl_t_vp_build.c.o src/mesa/libmesa_classic.a.p/swrast_s_aaline.c.o src/mesa/libmesa_classic.a.p/swrast_s_aatriangle.c.o src/mesa/libmesa_classic.a.p/swrast_s_alpha.c.o src/mesa/libmesa_classic.a.p/swrast_s_atifragshader.c.o src/mesa/libmesa_classic.a.p/swrast_s_bitmap.c.o src/mesa/libmesa_classic.a.p/swrast_s_blend.c.o src/mesa/libmesa_classic.a.p/swrast_s_blit.c.o src/mesa/libmesa_classic.a.p/swrast_s_clear.c.o src/mesa/libmesa_classic.a.p/swrast_s_context.c.o src/mesa/libmesa_classic.a.p/swrast_s_copypix.c.o src/mesa/libmesa_classic.a.p/swrast_s_depth.c.o src/mesa/libmesa_classic.a.p/swrast_s_drawpix.c.o src/mesa/libmesa_classic.a.p/swrast_s_feedback.c.o src/mesa/libmesa_classic.a.p/swrast_s_fog.c.o src/mesa/libmesa_classic.a.p/swrast_s_fragprog.c.o src/mesa/libmesa_classic.a.p/swrast_s_lines.c.o src/mesa/libmesa_classic.a.p/swrast_s_logic.c.o src/mesa/libmesa_classic.a.p/swrast_s_masking.c.o src/mesa/libmesa_classic.a.p/swrast_s_points.c.o src/mesa/libmesa_classic.a.p/swrast_s_renderbuffer.c.o src/mesa/libmesa_classic.a.p/swrast_s_span.c.o src/mesa/libmesa_classic.a.p/swrast_s_stencil.c.o src/mesa/libmesa_classic.a.p/swrast_s_texcombine.c.o src/mesa/libmesa_classic.a.p/swrast_s_texfetch.c.o src/mesa/libmesa_classic.a.p/swrast_s_texfilter.c.o src/mesa/libmesa_classic.a.p/swrast_s_texrender.c.o src/mesa/libmesa_classic.a.p/swrast_s_texture.c.o src/mesa/libmesa_classic.a.p/swrast_s_triangle.c.o src/mesa/libmesa_classic.a.p/swrast_s_zoom.c.o src/mesa/libmesa_classic.a.p/swrast_setup_ss_context.c.o src/mesa/libmesa_classic.a.p/swrast_setup_ss_triangle.c.o src/mesa/libmesa_classic.a.p/drivers_common_driverfuncs.c.o src/mesa/libmesa_classic.a.p/drivers_common_meta_blit.c.o src/mesa/libmesa_classic.a.p/drivers_common_meta_generate_mipmap.c.o src/mesa/libmesa_classic.a.p/drivers_common_meta.c.o src/mesa/libmesa_classic.a.p/x86_x86_xform.c.o src/mesa/libmesa_classic.a.p/x86_3dnow.c.o src/mesa/libmesa_classic.a.p/x86_sse.c.o src/mesa/libmesa_classic.a.p/x86_rtasm_x86sse.c.o src/mesa/libmesa_classic.a.p/sparc_sparc.c.o src/mesa/libmesa_classic.a.p/x86-64_x86-64.c.o ninja: build stopped: subcommand failed. WARNING: /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/temp/run.do_compile.31992:161 exit 1 from 'ninja -v -j 8' WARNING: Backtrace (BB generated script): #1: meson_do_compile, /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/temp/run.do_compile.31992, line 161 #2: do_compile, /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/temp/run.do_compile.31992, line 156 #3: main, /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/temp/run.do_compile.31992, line 165 Backtrace (metadata-relative locations): #1: meson_do_compile, /home/morten/vetscan-spe-instrument/poky/meta/classes/meson.bbclass, line 176 #2: do_compile, autogenerated, line 2 ERROR: Logfile of failure stored in: /home/morten/yocto/spe/tmp/work/cortexa7t2hf-neon-vfpv4-poky-linux-gnueabi/mesa-gl/2_21.0.1-r0/temp/log.do_compile.31992 -- Morten