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    SubjectRe: [PATCH 1/7] RISC-V: Top-Level Makefile for riscv{32,64}
    On Tue, May 23, 2017 at 2:41 AM, Palmer Dabbelt <palmer@dabbelt.com> wrote:
    > RISC-V has both 32-bit and 64-bit base ISAs, but they are very similar.
    > Like some other platforms, we'd like to share one arch directory between
    > the two of them.

    I think we mainly do the others for backwards-compatibility with ancient
    build scripts, and we don't need that here. Instead, you could add one more
    line to the 'SUBARCH:=' statement that interprets the uname output.

    Arnd

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