I compiled rieMiner in a Toshiba AC100 (Armhf CPU, Ubuntu 16.04) without any issue, so rieMiner should work in a Raspberry Pi with Linux.
Note that you need to use the Light branch. Also be sure to read properly the README.md (in particular,
32 bits compilation instructions (no longer needed) and reduce the PrimeTableLimit for less memory usage).
If you need help, please post questions here.
As pi64 seems to be Debian based, you should not encounter any other issue.
Someone else was able to make rieMiner work on RaspBerry Pi without any issue.
# apt install g++ make git libjansson-dev libcurl4-openssl-dev libssl-dev libgmp-dev
git clone https://github.com/Pttn/rieMiner.git
cd rieMiner
git checkout Light
make -j 4
Enjoy.