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);