Adriaan: I downloaded from http://www.microbizz.nl/gpc.html GNU Pascal 3.4.5u2 installer for Mac OS X 10.4 PowerPC (PowerPC native and Intel cross compiler) (16.4 MB) to my Max OSX version 10.4.3 Power PC G4 It unpackaged ok and I have now /Developer/Pascal/ Then I went to /tmp and made: program tboy(output); begin writeln(output,'go to sleep!!'); end. I tried this: /Developer/Pascal/gpc345u2/bin/gpc test.p and got: [bluebird:~/now/t] tds% /Developer/Pascal/gpc345u2/bin/gpc test.p /usr/bin/ld: can't locate file for: -lSystemStubs collect2: ld returned 1 exit status Then /Developer/Pascal/gpc345u2/bin/gp test.p and got [bluebird:~/now/t] tds% /Developer/Pascal/gpc345u2/bin/gp test.p /usr/bin/ld: can't locate file for: -lSystemStubs collect2: ld returned 1 exit status Hmm. I could not locate simple examples of how to run the compiler. A small example test directory would help. Oh, also, the ReadMe.rtf that came in the package is not the same as /Developer/Pascal/README.rtf which is confusing. Regards, Tom Dr. Thomas D. Schneider National Institutes of Health National Cancer Institute Center for Cancer Research Nanobiology Program Molecular Information Theory Group Frederick, Maryland 21702-1201 toms@ncifcrf.gov permanent email: toms@alum.mit.edu (use only if first address fails) http://www.ccrnp.ncifcrf.gov/~toms/ http://www.uwasa.fi/~ts/http/quote.html http://en.wikipedia.org/wiki/Top-posting