From 469cb7376c067bc6203de4ceed253c10fe712542 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Mon, 28 May 2018 18:22:02 +0900
Subject: kconfig: add CC_IS_CLANG and CLANG_VERSION

This will be useful to describe the clang version dependency.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
---
 init/Kconfig | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'init/Kconfig')

diff --git a/init/Kconfig b/init/Kconfig
index 66c8fd1f1d8e..efc43c60de45 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -16,6 +16,13 @@ config GCC_VERSION
 	default $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC
 	default 0
 
+config CC_IS_CLANG
+	def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)
+
+config CLANG_VERSION
+	int
+	default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+
 config CONSTRUCTORS
 	bool
 	depends on !UML
-- 
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