| From | Masahiro Yamada <> | Subject | [PATCH v2 13/21] kconfig: add CC_IS_GCC and GCC_VERSION | Date | Tue, 27 Mar 2018 14:29:27 +0900 |
| |
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> ---
Changes in v2: None
init/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/init/Kconfig b/init/Kconfig index c456030..923cab5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -14,6 +14,14 @@ macro success $(shell ($(1) && echo y) || echo n) # expanded to y if the given compiler flag is supported, n otherwise macro cc-option $(success $CC -Werror $(1) -c -x c /dev/null -o /dev/null) +config CC_IS_GCC + def_bool $(success $CC --version | 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 -- 2.7.4
|