• Masahiro Yamada's avatar
    kbuild: remove cc-version macro · d3a918c6
    Masahiro Yamada authored
    There is no more direct user of this macro; it is only used by
    cc-ifversion.
    
    Calling this macro is not efficient since it invokes the compiler to
    get the compiler version. CONFIG_GCC_VERSION is already calculated in
    the Kconfig stage, so Makefile can reuse it.
    
    Here is a note about the slight difference between cc-version and
    CONFIG_GCC_VERSION:
    
    When using Clang, cc-version is evaluated to '0402' because Clang
    defines __GNUC__ and __GNUC__MINOR__, and looks like GCC 4.2 in the
    version point of view. On the other hand, CONFIG_GCC_VERSION=0
    when $(CC) is clang.
    
    There are currently two users of cc-ifversion:
      arch/mips/loongson64/Platform
      arch/powerpc/Makefile
    
    They are not affected by this change.
    
    The format of cc-version is <major><minor>, while CONFIG_GCC_VERSION
    <major><minor><patch>. I adjusted cc-ifversion for the difference of
    the number of digits.
    Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
    d3a918c6
Kbuild.include 13 KB