along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-extern char *rmt_command;
-extern char *rmt_dev_name__;
+extern char const *rmt_command;
+extern char const *rmt_dev_name__;
int rmt_open__ (const char *, int, int, const char *);
int rmt_close__ (int);