clamd failing to start -- error while loading shared libraries: libltdl.so.7: cannot open shared object file: No such file or directory

Question

Why is clamd failing to start with the following error?

/usr/local/cpanel/3rdparty/bin/clamd: error while loading shared libraries: libltdl.so.7: cannot open shared object file: No such file or directory

Answer

The libtool-ltdl RPM needs to be installed by running the following command:

yum install libtool-ltdl

After the libtool-ltdl RPM has been installed, clamd should be able to start:

/scripts/restartsrv-clamd --start