theNullProc       108 src/proc.c     static ScmObj theNullProc = SCM_NIL;
theNullProc       117 src/proc.c         if (SCM_NULLP(theNullProc)) {
theNullProc       118 src/proc.c             theNullProc = Scm_MakeSubr(null_proc, NULL, 0, 1,
theNullProc       121 src/proc.c         return SCM_OBJ(theNullProc);