commit 1175c02506ffc9cef9f3c520249d8740a3174b1f
author Masahiro Yamada <yamada.masahiro@socionext.com> Mon May 28 18:21:50 2018 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> Tue May 29 03:31:19 2018 +0900
tree 4d95574d080570461e3483ec3b916b867463c6f3
parent 9ced3bddec080e974e910bf887715540a8d9d96b

kconfig: support simply expanded variable

The previous commit added variable and user-defined function.  They
work similarly in the sense that the evaluation is deferred until
they are used.

This commit adds another type of variable, simply expanded variable,
as we see in Make.

The := operator defines a simply expanded variable, expanding the
righthand side immediately.  This works like traditional programming
language variables.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>