| Message ID | CAK7LNASU_hPdd0u-m-eehByP4wU270e+Z6Dy2CVxGF-4JLMgVw@mail.gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 05.06.2018 08:27, Masahiro Yamada wrote: > 2018-06-05 14:50 GMT+09:00 Stefan Agner <stefan@agner.ch>: >> On 05.06.2018 02:07, Masahiro Yamada wrote: >>> Hi Stefan >>> >>> 2018-06-05 6:49 GMT+09:00 Stefan Agner <stefan@agner.ch>: >>>> Hi Masahiro, >>>> >>>> On 28.05.2018 11:22, Masahiro Yamada wrote: >>>>> 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. >>>>> >>>> >>>> I tried using CC_IS_GCC today while using clang. It seems that it is set >>>> to y despite I am using CC=clang. >>>> >>>> .config looks like this after config: >>>> >>>> ... >>>> CONFIG_CC_IS_GCC=y >>>> CONFIG_GCC_VERSION=40201 >>>> CONFIG_CC_IS_CLANG=y >>>> CONFIG_CLANG_VERSION=60000 >>>> ... >>>> >>>> >>>> I am using clang 6.0.0 on Arch Linux, which seems to return a version >>>> when using gcc-version.sh: >>>> ./scripts/gcc-version.sh clang | sed 's/^0*//' >>>> 402 >>>> >>>> I guess that should not be the case? >>>> >>> >>> >>> What will 'clang --version' print on your machine? >> >> $ clang --version >> clang version 6.0.0 (tags/RELEASE_600/final) >> Target: x86_64-pc-linux-gnu >> Thread model: posix >> InstalledDir: >> /home/ags/gcc-linaro-7.2.1-2017.11-x86_64_arm-linux-gnueabihf/bin >> >> I use a symlink to clang in my cross compiler toolchain, that is why >> InstalledDir points to a GCC toolchain. >> > > Ah, I see. > > > I will fix it up like follows: > > > diff --git a/init/Kconfig b/init/Kconfig > index e5a0d89..efc43c6 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -9,7 +9,7 @@ config DEFCONFIG_LIST > default "arch/$(ARCH)/defconfig" > > config CC_IS_GCC > - def_bool $(success,$(CC) --version | grep -q gcc) > + def_bool $(success,$(CC) --version | head -n 1 | grep -q gcc) Yes that works for me: ... CONFIG_GCC_VERSION=0 CONFIG_CC_IS_CLANG=y CONFIG_CLANG_VERSION=60000 ... -- Stefan > > config GCC_VERSION > int > @@ -17,7 +17,7 @@ config GCC_VERSION > default 0 > > config CC_IS_CLANG > - def_bool $(success,$(CC) --version | grep -q clang) > + def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) > > config CLANG_VERSION > int > > > > > Best Regards > Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/init/Kconfig b/init/Kconfig index e5a0d89..efc43c6 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -9,7 +9,7 @@ config DEFCONFIG_LIST default "arch/$(ARCH)/defconfig" config CC_IS_GCC - def_bool $(success,$(CC) --version | grep -q gcc) + def_bool $(success,$(CC) --version | head -n 1 | grep -q gcc) config GCC_VERSION int @@ -17,7 +17,7 @@ config GCC_VERSION default 0 config CC_IS_CLANG - def_bool $(success,$(CC) --version | grep -q clang) + def_bool $(success,$(CC) --version | head -n 1 | grep -q clang) config CLANG_VERSION int