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>
diff --git a/init/Kconfig b/init/Kconfig
index 66c8fd1..efc43c6 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -16,6 +16,13 @@
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