encoding_scm     1265 src/extlib.c     ScmObj encoding_scm;
encoding_scm     1268 src/extlib.c     encoding_scm = SCM_ARGREF(0);
encoding_scm     1269 src/extlib.c     if (!SCM_STRINGP(encoding_scm)) Scm_Error("const C string required, but got %S", encoding_scm);
encoding_scm     1270 src/extlib.c     encoding = SCM_STRING_CONST_CSTRING(encoding_scm);