Commit a4353898 authored May 28, 2018 by Masahiro Yamada

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 <yamada.masahiro@socionext.com>
Reviewed-by: Kees Cook <keescook@chromium.org>

parent 2a61f474

init/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -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