rsync

• https://github.com/WayneD/rsync/issues/29
• --disable-roll-simd should be used when not using glibc

• Some distros (e.g. Alpine) disable openssl support because xxhash checksums are much faster (same thing goes for the new flag --with-openssl-conf=/path/name.cnf)

• rrsync requires python
• rsync requires yodl2man