Hello Greg, I encountered the same problems with RH7 -- I fixed it by editing "parsecl.cpp". I don't know the exact reason why it fails and I remeber that it worked with an SuSE based Linux system... But anyway: Change line 131 from > exit(0) to >_exit(0) And add the following include at the *beginning* of the file: > #include <unistd.h> (Without all the ">" of course...) > Thanks > Greg CU Michael.