Has the syntax-case module for Gambit bit-rotted?
It's not usable right now. Gambit has acquired a lot of new features in a short time period so some patience and support from us users is in order :)
I know it had trouble interacting with DSSSL lambda-list keywords, but I doubt if it blocks the ordinary kind.
No knowledge of that. SRFI 177 keyword-lambda needs to be able to expand into (lambda (... #!key ...) ...) unless there is a shortcut that avoids using the `#!key` read syntax. The current define-macro version handles #!key fine. As far as I can tell it has no unintentional variable capture unless the caller has redefined `lambda`.
Define-macro is TRULY EVIL and shouldn't be used anywhere you don't absolutely have to, even where it is available.
A strong message from the captured variable liberation front :)
As far as I know, the only other Schemes that have both keyword objects and lack another low-level macro system besides define-macro are S7 and STKlos
As far as I can tell, Bigloo doesn't have hygienic macros more powerful than syntax-rules. Note that Gambit also has syntax-rules.
If you want to use macros defined with define-macro, you need to put them in the file foo#.scm and use the primitive modules (i.e. foo.scm and foo#.scm files).
Thanks! It was easy to do this way (I put the macros in 177#.scm and added an empty 177.scm so Gambit finds it; not an issue).