[15/23] kconfig: add CC_IS_GCC and GCC_VERSION

Message ID 1518806331-7101-16-git-send-email-yamada.masahiro@socionext.com
State New
Headers show
Series
  • kconfig: move compiler capability tests to Kconfig
Related show

Commit Message

Masahiro Yamada Feb. 16, 2018, 6:38 p.m.
This will be useful to specify the required compiler version,
like this:

config FOO
        bool "Use Foo"
        depends on GCC_VERSION >= 408000
        help
          This feature requires GCC 4.8 or newer.

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

---

 init/Kconfig | 9 +++++++++
 1 file changed, 9 insertions(+)

-- 
2.7.4

Patch

diff --git a/init/Kconfig b/init/Kconfig
index 837a584..f2da5e9 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -12,6 +12,15 @@  config cc-option
 	string
 	macro $(shell $CC -Werror $(1) -c -x c /dev/null -o /dev/null)
 
+config CC_IS_GCC
+	bool
+	default $(shell $CC --version | grep -q gcc)
+
+config GCC_VERSION
+	int
+	default $(shell-stdout $srctree/scripts/gcc-version.sh -p $CC | sed 's/^0*//') if CC_IS_GCC
+	default 0
+
 config CONSTRUCTORS
 	bool
 	depends on !UML