what happens when you try to run it in REPL? I tried it and except having to change the hardcoded path, it works.<br><br><div class="gmail_quote">On Fri, Jul 3, 2009 at 4:01 PM, Paulo J. Matos <span dir="ltr"><<a href="mailto:pocmatos@gmail.com">pocmatos@gmail.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I managed to create a small example depicting what's happening:<br> test-sig.scm:<br> #lang scheme<br> <br> (define-signature test^<br> (x))<br> <br> (provide test^)<br> ================== END<br> <br> <br> gen.scm:<br> #lang scheme<br> <br> (require "test-sig.scm")<br> <br> (define (generate)<br> (let ([filename (make-temporary-file)])<br> (call-with-output-file filename<br> #:mode 'text<br> #:exists 'replace<br> (lambda (fp)<br> (fprintf fp "#lang scheme~n~n")<br> (fprintf fp "(require (file \"/home/sorgematos/Temp/test-sig.scm\"))")<br> (fprintf fp "(provide test@)")<br> (fprintf fp "(define-unit test@ (import test^) (export)~n")<br> (fprintf fp "(* x 2)")<br> (fprintf fp ")"))); closes define-unit<br> filename))<br> <br> (let* ([file (generate)]<br> [test@ (dynamic-require file 'test@)]<br> [x 5]<br> [result (invoke-unit test@ (import test^))])<br> (printf "Result: ~a~n" result))<br> <br> ================== END<br> <br> They are in the same directory: /home/sorgematos/Temp/<br> <br> Now, running gen.scm inside DrScheme works perfectly and prints :<br> Result: 10<br> <br> However, in the terminal with PLT Scheme 4.2 I get the following interaction:<br> sorgematos@sorgematos-laptop:~/Temp$ mzc --exe gen gen.scm<br> sorgematos@sorgematos-laptop:~/Temp$ ./gen<br> <div class="im">standard-module-name-resolver: collection not found:<br> </div>#<path:scheme/lang> in any of: (#<path:/home/sorgematos/collects>)<br> sorgematos@sorgematos-laptop:~/Temp$ ln -s<br> /usr/local/lib/plt/collects/ ../collects<br> sorgematos@sorgematos-laptop:~/Temp$ ./gen<br> <div class="im">define-compound-unit: unit argument expects an untagged import with<br> </div>signature test^, which this usage context does not supply<br> <div class="im"><br> === context ===<br> /usr/local/lib/plt/collects/mzlib/private/unit-runtime.ss:66:4: loop<br> /usr/local/lib/plt/collects/mzlib/private/unit-runtime.ss:132:2: check-sigs<br> <br> <br> <br> </div>Any suggestions or comments on this?<br> <div class="im"><br> Cheers,<br> <br> --<br> Paulo Jorge Matos - pocmatos at <a href="http://gmail.com" target="_blank">gmail.com</a><br> <a href="http://www.pmatos.net" target="_blank">http://www.pmatos.net</a><br> </div><div><div></div><div class="h5">_________________________________________________<br> For list-related administrative tasks:<br> <a href="http://list.cs.brown.edu/mailman/listinfo/plt-scheme" target="_blank">http://list.cs.brown.edu/mailman/listinfo/plt-scheme</a><br> </div></div></blockquote></div><br>