closer_scm       3978 src/extlib.c     ScmObj closer_scm;
closer_scm       3986 src/extlib.c     closer_scm = SCM_ARGREF(0);
closer_scm       3987 src/extlib.c     if (!SCM_CHARP(closer_scm)) Scm_Error("character required, but got %S", closer_scm);
closer_scm       3988 src/extlib.c     closer = SCM_CHAR_VALUE(closer_scm);