libhdf5.so.100: cannot open shared object file: No such file or directory (However, libhdf5.so.100 is in /usr/local/lib)

Question

Although I can see that libhdf5.so.100 is actually inside /usr/local/lib, I receive the following error when running octave:

bash-4.3$ octave

/usr/local/bin/octave-cli-4.0.2: error while loading shared libraries: libhdf5.so.100: cannot open shared object file: No such file or directory

I built octave 4.0.2 myself.

Answer 1

I added the line /usr/local/lib to /etc/ld.so.conf and then ran sudo ldconfig. Problem solved.