• Masahiro Yamada's avatar
    kbuild: add test-{ge,gt,le,lt} macros · fccb3d3e
    Masahiro Yamada authored
    GNU Make 4.4 introduced $(intcmp ...), which is useful to compare two
    integers without forking a new process.
    
    Add test-{ge,gt,le,lt} macros, which work more efficiently with GNU
    Make >= 4.4. For older Make versions, they fall back to the 'test'
    shell command.
    
    The first two parameters to $(intcmp ...) must not be empty. To avoid
    the syntax error, I appended '0' to them. Fortunately, '00' is treated
    as '0'. This is needed because CONFIG options may expand to an empty
    string when the kernel configuration is not included.
    Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
    Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
    Reviewed-by: default avatarNathan Chancellor <nathan@kernel.org>
    Reviewed-by: default avatarNicolas Schier <nicolas@fjasle.eu>
    fccb3d3e
Makefile 10.4 KB