void yaz_mime_types_add(yaz_mime_types t, const char *suffix,
const char *mime_type);
const char *yaz_mime_lookup_suffix(yaz_mime_types t, const char *suffix);
void yaz_mime_types_add(yaz_mime_types t, const char *suffix,
const char *mime_type);
const char *yaz_mime_lookup_suffix(yaz_mime_types t, const char *suffix);