From a4353898980cc46b28c03fc401d4d916d82c6f4f Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 28 May 2018 18:22:01 +0900 Subject: [PATCH] kconfig: add CC_IS_GCC and GCC_VERSION This will be useful to specify the required compiler version, like this: config FOO bool "Use Foo" depends on GCC_VERSION >= 40800 help This feature requires GCC 4.8 or newer. Signed-off-by: Masahiro Yamada Reviewed-by: Kees Cook --- init/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/init/Kconfig b/init/Kconfig index 22ca30f6a6bd..66c8fd1f1d8e 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -8,6 +8,14 @@ config DEFCONFIG_LIST default ARCH_DEFCONFIG default "arch/$(ARCH)/defconfig" +config CC_IS_GCC + def_bool $(success,$(CC) --version | head -n 1 | grep -q gcc) + +config GCC_VERSION + int + default $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC + default 0 + config CONSTRUCTORS bool depends on !UML