>>> uboot-tools 2021.04 Extracting
bzcat /home/giuliobenetti/autobuild/run/instance-0/dl/uboot-tools/u-boot-2021.04.tar.bz2 | tar --strip-components=1 -C /home/giuliobenetti/autobuild/run/instance-0/output-1/build/uboot-tools-2021.04   -xf -
>>> uboot-tools 2021.04 Patching

Applying 0001-drop-configh-from-tools.patch using patch: 
patching file tools/env/fw_env_private.h

Applying 0002-tools-only-in-no-dot-config-targets.patch using patch: 
patching file Makefile
Hunk #1 succeeded at 507 (offset 21 lines).

Applying 0003-drop-autoconf.h-from-tools.patch using patch: 
patching file tools/imximage.c
>>> uboot-tools 2021.04 Configuring
mkdir -p /home/giuliobenetti/autobuild/run/instance-0/output-1/build/uboot-tools-2021.04/include/config
touch /home/giuliobenetti/autobuild/run/instance-0/output-1/build/uboot-tools-2021.04/include/config/auto.conf
>>> uboot-tools 2021.04 Building
PATH="/home/giuliobenetti/autobuild/run/instance-0/output-1/host/bin:/home/giuliobenetti/autobuild/run/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" /usr/bin/make -j5 -C /home/giuliobenetti/autobuild/run/instance-0/output-1/build/uboot-tools-2021.04 CROSS_COMPILE="/home/giuliobenetti/autobuild/run/instance-0/output-1/host/bin/sparc64-linux-" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g2 " LDFLAGS="" HOSTCFLAGS="-O2 -I/home/giuliobenetti/autobuild/run/instance-0/output-1/host/include" STRIP=/home/giuliobenetti/autobuild/run/instance-0/output-1/host/bin/sparc64-linux-strip CONFIG_FIT=y CONFIG_MKIMAGE_DTC_PATH=dtc CONFIG_FIT_SIGNATURE=y CONFIG_FIT_SIGNATURE_MAX_SIZE=0x10000000 CROSS_BUILD_TOOLS=y tools-only
make[1]: Entering directory '/home/giuliobenetti/autobuild/run/instance-0/output-1/build/uboot-tools-2021.04'
  HOSTCC  scripts/basic/fixdep
  COPY    tools/version.h
  UPD     include/generated/timestamp_autogenerated.h
  UPD     include/config/uboot.release
  UPD     include/generated/version_autogenerated.h
  HOSTCC  tools/mkenvimage.o
  HOSTCC  tools/os_support.o
  WRAP    tools/lib/crc32.c
  HOSTCC  tools/aisimage.o
  HOSTCC  tools/atmelimage.o
  HOSTCC  tools/fit_common.o
  HOSTCC  tools/fit_image.o
  HOSTCC  tools/image-host.o
  WRAP    tools/common/image-fit.c
  WRAP    tools/common/image-sig.c
  WRAP    tools/common/image-fit-sig.c
  WRAP    tools/common/fdt_region.c
  WRAP    tools/common/bootm.c
  HOSTCC  tools/lib/crc32.o
  HOSTCC  tools/default_image.o
  WRAP    tools/lib/fdtdec_common.c
  WRAP    tools/lib/fdtdec.c
  WRAP    tools/common/image.c
  HOSTCC  tools/imagetool.o
  HOSTCC  tools/imximage.o
  HOSTCC  tools/imx8image.o
  HOSTCC  tools/imx8mimage.o
  HOSTCC  tools/kwbimage.o
  WRAP    tools/lib/md5.c
  HOSTCC  tools/lpc32xximage.o
  HOSTCC  tools/mxsimage.o
  HOSTCC  tools/omapimage.o
  HOSTCC  tools/pblimage.o
  HOSTCC  tools/pbl_crc32.o
  HOSTCC  tools/vybridimage.o
  HOSTCC  tools/stm32image.o
  WRAP    tools/lib/rc4.c
  HOSTCC  tools/rkcommon.o
  HOSTCC  tools/rkimage.o
  HOSTCC  tools/rksd.o
  HOSTCC  tools/rkspi.o
  HOSTCC  tools/socfpgaimage.o
  HOSTCC  tools/sunxi_egon.o
  WRAP    tools/lib/crc16.c
  WRAP    tools/lib/sha1.c
  WRAP    tools/lib/sha256.c
  WRAP    tools/lib/sha512.c
  WRAP    tools/common/hash.c
  HOSTCC  tools/ublimage.o
  HOSTCC  tools/zynqimage.o
  HOSTCC  tools/zynqmpimage.o
  HOSTCC  tools/zynqmpbif.o
  HOSTCC  tools/libfdt/fdt.o
  HOSTCC  tools/libfdt/fdt_ro.o
  HOSTCC  tools/libfdt/fdt_wip.o
  HOSTCC  tools/libfdt/fdt_sw.o
  HOSTCC  tools/libfdt/fdt_rw.o
  HOSTCC  tools/libfdt/fdt_strerror.o
  HOSTCC  tools/libfdt/fdt_empty_tree.o
  HOSTCC  tools/libfdt/fdt_addresses.o
  HOSTCC  tools/libfdt/fdt_overlay.o
  HOSTCC  tools/gpimage.o
  HOSTCC  tools/gpimage-common.o
  HOSTCC  tools/mtk_image.o
  WRAP    tools/lib/rsa/rsa-sign.c
  WRAP    tools/lib/rsa/rsa-verify.c
  WRAP    tools/lib/rsa/rsa-checksum.c
  WRAP    tools/lib/rsa/rsa-mod-exp.c
  HOSTCC  tools/dumpimage.o
  HOSTCC  tools/common/image-fit.o
  HOSTCC  tools/common/image-sig.o
  HOSTCC  tools/common/image-fit-sig.o
  HOSTCC  tools/common/fdt_region.o
In file included from ./tools/../common/image-fit.c:33,
                 from tools/common/image-fit.c:1:
include/linux/kconfig.h:4:10: fatal error: generated/autoconf.h: No such file or directory
    4 | #include <generated/autoconf.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [scripts/Makefile.host:112: tools/common/image-fit.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile:1955: tools-only] Error 2
make[1]: Leaving directory '/home/giuliobenetti/autobuild/run/instance-0/output-1/build/uboot-tools-2021.04'
make: *** [package/pkg-generic.mk:250: /home/giuliobenetti/autobuild/run/instance-0/output-1/build/uboot-tools-2021.04/.stamp_built] Error 2
make: Leaving directory '/home/giuliobenetti/autobuild/run/instance-0/buildroot'