[gambit-list] refcounts and threads

[Christian]

For completeness, here are the two conversion "opcode-"macros which 
I've forgotten to show in my previous mail:

#define ___BEGIN_CFUN_SV_to_string_SCMOBJ(svp, obj) \
    if ((___err = gperl__SV_to_string_SCMOBJ(svp, &obj)) == ___FIX(___NO_ERR)) {
#define ___END_CFUN_SV_to_string_SCMOBJ(svp, obj) }