Compile Kerberos. See the Kerberos V5 Installation Guide for instructions for how to do this.
Compile the NetSolve client libraries with Kerberos support. Refer to the instructions in the the section called Installation on Unix Systems in Chapter 13 section following the notes that talk about authentication and authentication libraries. In part, this involves editing the $NETSOLVE_ROOT/conf/Makefile.NETSOLVE_ARCH.inc and modifying the KLIBS field to point to the appropriate Kerberos libraries and setting the AUTHENTICATION field to KERBEROS5.