create_uboot dependencies?

[Steven Harp]

In genode 17.05, I'm having difficulties with tool "create_uboot".
Perhaps there are some preparatory steps or usage guidelines
that I am missing....  The error manifests as (below).
Any suggestions about what might be amiss?  (Goal is preparing an
image for wand quad.)


$ ~/genode/tool/create_uboot wand_quad
Already on 'genode_wand_quad'
Your branch is up-to-date with 'origin/genode_wand_quad'.
Building U-Boot config...
make[1]: Entering directory '/home/user/genode/contrib/uboot'
make[2]: Entering directory '/home/user/genode/contrib/uboot/build/wand_quad'
  GEN     ./Makefile
#
# configuration written to .config
#
make[2]: Leaving directory '/home/user/genode/contrib/uboot/build/wand_quad'
make[1]: Leaving directory '/home/user/genode/contrib/uboot'
Building U-Boot images...
make[1]: Entering directory '/home/user/genode/contrib/uboot/build/wand_quad'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config.h
  GEN     include/autoconf.mk
  GEN     include/autoconf.mk.dep
  GEN     spl/include/autoconf.mk
In file included from /home/user/genode/contrib/uboot/include/linux/compiler.h:54:0,
                 from /home/user/genode/contrib/uboot/include/linux/byteorder/little_endian.h:12,
                 from /home/user/genode/contrib/uboot/arch/arm/include/asm/byteorder.h:29,
                 from /home/user/genode/contrib/uboot/include/compiler.h:125,
                 from /home/user/genode/contrib/uboot/include/image.h:19,
                 from /home/user/genode/contrib/uboot/include/common.h:82:
/home/user/genode/contrib/uboot/include/linux/compiler-gcc.h:114:30: fatal error: linux/compiler-gcc6.h: No such file or directory
 #include gcc_header(__GNUC__)
                              ^
compilation terminated.

... Repeats ...