No additional library is necessary.
Here is the procedure for installing tRNAscan-SE from its source code:
/home/bioubuntu, decompressed and the newly created folder is moved into /opt/bio/sources.root and its permissions set to 755.% sudo chown -R root:root /opt/bio/sources/tRNAscan-SE-1.23 % sudo chmod 755 /opt/bio/sources/tRNAscan-SE-1.23
/opt/bio/sources/tRNAscan-SE-1.23, you need to do small edits in the Makefile before compiling:BINDIR=/usr/local/bin LIBDIR=/usr/lib/tRNAscan-SE MANDIR=/usr/share/man
% cd src % sudo make && sudo make install