SCM_CLASS_PROCEDURE 2291 src/gauche.h           SCM__PROCEDURE_INITIALIZER(SCM_CLASS2TAG(SCM_CLASS_PROCEDURE),      \
SCM_CLASS_PROCEDURE   78 src/proc.c         SCM_SET_CLASS(c, SCM_CLASS_PROCEDURE);
SCM_CLASS_PROCEDURE   97 src/proc.c         SCM_SET_CLASS(s, SCM_CLASS_PROCEDURE);