--- em-4.0.15-lt.oorig/lock.c	1999-05-16 09:04:17.000000000 +0200
+++ em-4.0.15-lt/lock.c	2006-03-10 15:22:16.000000000 +0100
@@ -152,10 +152,8 @@
 
 	strcpy(obuf, errstr);
 	strcat(obuf, " - ");
-	if (errno < sys_nerr)
-		strcat(obuf, sys_errlist[errno]);
-	else
-		strcat(obuf, "(can not get system error message)");
+	strcat(obuf, strerror(errno));
+
 	mlwrite(obuf);
 }
 #endif