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Rodriguez" , Nicolas Pitre , Masahiro Yamada , linux-kernel@vger.kernel.org Subject: [PATCH v2 13/21] kconfig: add CC_IS_GCC and GCC_VERSION Date: Tue, 27 Mar 2018 14:29:27 +0900 Message-Id: <1522128575-5326-14-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1522128575-5326-1-git-send-email-yamada.masahiro@socionext.com> References: <1522128575-5326-1-git-send-email-yamada.masahiro@socionext.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- Changes in v2: None init/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) -- 2.7.4 Reviewed-by: Kees Cook 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