>>> uboot-tools 2018.05 Extracting
bzcat /home/rclinux/rc-buildroot-test/scripts/instance-1/dl/uboot-tools/u-boot-2018.05.tar.bz2 | tar --strip-components=1 -C /home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05   -xf -
>>> uboot-tools 2018.05 Patching

Applying 0001-drop-configh-from-tools.patch using patch: 
patching file tools/env/fw_env_private.h
Hunk #1 succeeded at 4 with fuzz 1 (offset -1 lines).

Applying 0002-tools-only-in-no-dot-config-targets.patch using patch: 
patching file Makefile

Applying 0003-Make-FIT-support-really-optional.patch using patch: 
patching file common/bootm.c
Hunk #1 succeeded at 905 (offset 4 lines).
Hunk #2 succeeded at 970 (offset 4 lines).
patching file include/bootm.h
Hunk #1 succeeded at 40 (offset -1 lines).
patching file tools/Makefile
Hunk #1 succeeded at 58 with fuzz 2 (offset 4 lines).
Hunk #2 succeeded at 81 (offset 12 lines).
>>> uboot-tools 2018.05 Configuring
mkdir -p /home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05/include/config
touch /home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05/include/config/auto.conf
>>> uboot-tools 2018.05 Building
PATH="/home/rclinux/rc-buildroot-test/scripts/instance-1/output/host/bin:/home/rclinux/rc-buildroot-test/scripts/instance-1/output/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" /usr/bin/make -j4 -C /home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05 CROSS_COMPILE="/home/rclinux/rc-buildroot-test/scripts/instance-1/output/host/bin/arm-linux-" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  -static" LDFLAGS=" -static" STRIP=/home/rclinux/rc-buildroot-test/scripts/instance-1/output/host/bin/arm-linux-strip CROSS_BUILD_TOOLS=y tools-only
make[1]: Entering directory '/home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05'
  CHK     include/config/uboot.release
  HOSTCC  scripts/basic/fixdep
  CHK     include/generated/timestamp_autogenerated.h
  UPD     include/generated/timestamp_autogenerated.h
  UPD     include/config/uboot.release
  CHK     include/generated/version_autogenerated.h
  UPD     include/generated/version_autogenerated.h
  HOSTCC  tools/mkenvimage.o
  WRAP    tools/lib/crc32.c
  HOSTCC  tools/os_support.o
  HOSTCC  tools/aisimage.o
  HOSTCC  tools/atmelimage.o
tools/mkenvimage.c: In function ‘main’:
tools/mkenvimage.c:119:35: error: ‘PLAIN_VERSION’ undeclared (first use in this function)
    printf("%s version %s\n", prg, PLAIN_VERSION);
                                   ^~~~~~~~~~~~~
tools/mkenvimage.c:119:35: note: each undeclared identifier is reported only once for each function it appears in
  WRAP    tools/common/bootm.c
  HOSTCC  tools/default_image.o
scripts/Makefile.host:114: recipe for target 'tools/mkenvimage.o' failed
make[2]: *** [tools/mkenvimage.o] Error 1
make[2]: *** Waiting for unfinished jobs....
Makefile:1554: recipe for target 'tools-only' failed
make[1]: *** [tools-only] Error 2
make[1]: Leaving directory '/home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05'
package/pkg-generic.mk:229: recipe for target '/home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05/.stamp_built' failed
make: *** [/home/rclinux/rc-buildroot-test/scripts/instance-1/output/build/uboot-tools-2018.05/.stamp_built] Error 2
make: Leaving directory '/home/rclinux/rc-buildroot-test/scripts/instance-1/buildroot'