slef: Thanks for your thoughts. There are obvious omissions in my last diary entry: you mention Guile, which has nice support for generating stub files. Also I didn't mention SLIB, which is widely enough ported that it covers many of the gaps I mention.

What irritates me is that the way Guile does scsh-like functionality is quite different to the way scsh does it, and so one can't write portable code there. And each dialect of scheme has it's own, incompatible exception mechanism, and different, incompatible module system, and different incompatible structure generation facility.

There's convergence in terms of functionality, but not in terms of the actually invocations the user makes. I like the kernel of scheme much more than I like these other languages. I guess (i) a SRFI covering the generation of C stub files and (ii) ports of scsh functionality would cover most of what bothered me in my last diary entry.