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? -- Stefan > Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> > Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> > --- > > Changes in v5: None > Changes in v4: None > Changes in v3: None > Changes in v2: None > > init/Kconfig | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/init/Kconfig b/init/Kconfig > index f1b0cfb..2e33d93 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 | 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
