I wrote:
> My copyright paperwork for Guile is now done.  Rob, can you install my
> setgroups and symbol-printing patches?

In case someone else is less busy... top-level ChangeLog:
	* configure.in: check for setgroups.
libguile/ChangeLog:
	* posix.c (scm_setgroups): new function.
	* print.c (scm_print_symbol_name): add comments and fix bugs
	for #{1}#, #{'x}#, and #{}\#\ }#.


paul