[MIT-Scheme-devel] callbacks

[Matt Birkholz]

I see dynamic interfaces to libraries like libgdbm and libpq in the
microcode.  I assume they do not call back into Scheme.  SWAT went to
some pains to avoid callbacks.  Is there any hope for something like
guile-gnome in MIT/GNU Scheme?

Would I need a new kind of primitive that gets off the current
stacklet, switching to one the garbage collector will not need to
move, with a callback tramp that switches back to run the Scheme
callback... or sump'n?