+SCM_API SCM scm_take_locale_symbol (char *sym);
+SCM_API SCM scm_take_locale_symboln (char *sym, size_t len);
+
+SCM_API SCM scm_from_latin1_symbol (const char *str);
+SCM_API SCM scm_from_latin1_symboln (const char *str, size_t len);
+SCM_API SCM scm_take_latin1_symbol (char *sym);
+SCM_API SCM scm_take_latin1_symboln (char *sym, size_t len);
+
+SCM_API SCM scm_from_utf8_symbol (const char *str);
+SCM_API SCM scm_from_utf8_symboln (const char *str, size_t len);
+SCM_API SCM scm_take_utf8_symbol (char *sym);
+SCM_API SCM scm_take_utf8_symboln (char *sym, size_t len);