USING "-march=native" WORKS
====================
Editing the "build-armv8.sh" script to read "-march=native" resulted in a working executable. My Rpi-4 now mines "Yescript" algo at ~66H/s, getting a share once every 24 minutes on average. Slow, perhaps, but Yescript is a top earner on ZergPool today.
Thanks! --scryptr
arm-build.sh does that already, no editing required. It's the preferred procedure for any arm compile just as build.sh is for x86_64.
armbuild-all.sh & build-all.sh are mostly for compile testing different CPU architectures but include some hints in case the CPU Isn't
supported by certain compiler versions. build-allarch.sh for X86_64 does the same thing.
The next release will have some new examples for features like armv9.
About performance, we can't expect much from the RPi4 but it would be interesting to see how power efficient would be a cluster of Pi's big enough to match a desktop CPU in hashrate.