When using the legacy buildsystem, the kconfig parser may still be used,
as reported by Thomas:
>>> uboot 2018.09 Configuring
...]
HOSTCC scripts/basic/fixdep
HOSTCC scripts/kconfig/conf.o
YACC scripts/kconfig/zconf.tab.c
bin/sh: 1: bison: not found
ake[3]: *** [scripts/kconfig/zconf.tab.c] Error 127
ake[3]: *** Waiting for unfinished jobs....
LEX scripts/kconfig/zconf.lex.c
bin/sh: 1: flex: not found
However, in that case, the kconfig parser is only generated during the
'configure' step, so we can add bison/flex as standard dependencies.
Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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