This package is still a major problem on most non-BSD UNIX implementations, and unfortunately many useful programs depend on it's functionality. The BSD version (Sun3, Sun4, Ultrix) as well as SystemV COFF version are fairly stable, but versions for complicated cpu's or non-standard object code loaders, such as Alliant, Convex, Unicos and Multiflow have given problems. See source code documentation in loadobj.c must contain an entry for the proper loadobjXXX.c file. Good news is that the new SYSV4 revision, as well as Sun OS 4.1 include the dlopen(3x) library utilities for dynamic linking.