Strange thing.
I've tried to compile libtorrent + rtorrent using make -j 4, and I got error when had tried to run rtorrent:
rtorrent: error while loading shared libraries: libtorrent.so.19: cannot open shared object file: No such file or directory.
I tried again with only one thread and it works.
The OS is Debian Jessie running on Odroid C2 (arm64).
Semms like running ldconfig resolved that issue.
Most helpful comment
Semms like running
ldconfigresolved that issue.