--- expect-5.26/pty_termios.c	Mon Mar 16 19:53:41 1998
+++ expect-5.26.orig/pty_termios.c	Thu Oct  8 09:51:36 1998
@@ -131,7 +131,11 @@
 #endif
 
 #if defined(HAVE__GETPTY) || defined(HAVE_PTC_PTS) || defined(HAVE_PTMX)
+# if ((__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 1))
+#include <expect.h>
+#else
 static char *slave_name;
+# endif /* GNU libc-2.1 */
 #endif
 
 #if defined(HAVE_GETPTY)
@@ -369,7 +373,7 @@
 #else
 	if ((master = open("/dev/ptmx", O_RDWR)) == -1) return(-1);
 #endif
-	if ((slave_name = (char *)ptsname(master)) == NULL) {
+	if (slave_name ==  NULL) {
 		close(master);
 		return(-1);
 	} else if (grantpt(master)) {