4007:  Can't find default library (Serious)

     Explanation:  The default library is not where CA-Clipper/Exospace
     expects to find it, or it does not exist.  CA-Clipper/Exospace looks for
     libraries in the current directory first, and then in the path set in
     the DOS environment variable LIB.  The default libraries are those
     specified by the compiler through special records in the object file.