From mboxrd@z Thu Jan  1 00:00:00 1970
From: DH at synoia.com <DH@synoia.com>
Date: Thu, 14 Jun 2018 11:03:34 -0700
Subject: [U-Boot] make Menuconfig Error
Message-ID: <20180614110334.38d0fda8@raspberrypi>
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Cloned most recent u-boot 2018.06.14
make clean works
make menuconfig fails:

/bin/sh: 1: bison: not found
scripts/kconfig/Makefile:229: recipe for target
'scripts/kconfig/dochecklxdialog' failed make[1]: ***
[scripts/kconfig/dochecklxdialog] Error 1 Makefile:491: recipe for
target 'menuconfig' failed make: *** [menuconfig] Error 2

I've checked for bison, visually and with apt-cache search but I have
found none.

Will try rebuild based on u-boot from 2018.05.14 on SPDX errors, That
version did build.