Interesting, ... when I run the offending command in my shell (tcsh) then it completes just fine and creates ~/.gambit/lib/r6rs.o1. This is the command in the compile script that generates the "can't find ld" error: (gambc-cc "dyn" output: (path-expand (string-append r6rs-result ".o1")) input-files: (append (map (lambda (f) (string-append f ".c")) modules) (list link-file))) I wonder what's going on ... Now I'm lucky in that it appears that this is the last thing in the "compile" script. (Another reason to like make, you can build an intermediate result by hand if necessary and then continue with the rest of the make process.) Brad