Android asm support for Keccak

[wigwagwent]

In pull request #694 android support was removed from the build script. This adds it back in. From what I understand linux and android should be similar in the assembly file. I am not sure the correct way to test this. I can build the x86_64-linux-android target after this change.

[michaelsutton]

In pull request #694 android support was removed from the build script. This adds it back in. From what I understand linux and android should be similar in the assembly file. I am not sure the correct way to test this. I can build the x86_64-linux-android target after this change.

so previous code was

    if target_arch == "x86_64" && target_os != "windows" && target_os != "macos" {
        cc::Build::new().flag("-c").file("src/keccakf1600_x86-64.s").compile("libkeccak.a");
    }

any other linux-related os that might have been dropped other than android?

cc @elichai

[elichai]

Interesting, yeah I probably didn't think of other platforms when I wrote it(in Kaspa-miner) 😅

All Linux based OSs should probably work,
Maybe some openbsd might work? Or it might be more similar to Macos than Linux,
The best way to check would be to run the tests with the asm while emulating those OSs, but I don't know off of hand