kconfig: split some C files out of zconf.y
I want to compile each C file independently instead of including all
of them from zconf.y.
Split out confdata.c, expr.c, symbol.c, and preprocess.c .
These are low-hanging fruits.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index b028a48..592dfbfa 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -2,6 +2,7 @@
//
// Copyright (C) 2018 Masahiro Yamada <yamada.masahiro@socionext.com>
+#include <ctype.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
@@ -9,6 +10,7 @@
#include <string.h>
#include "list.h"
+#include "lkc.h"
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
