--- src/lib/libc/gen/sysconf.c	2003/06/17 04:26:42	1.2
+++ src/lib/libc/gen/sysconf.c	2004/11/09 17:52:45	1.3
@@ -34,6 +34,7 @@
  * SUCH DAMAGE.
  *
  * @(#)sysconf.c	8.2 (Berkeley) 3/20/94
+ * $DragonFly$
  */
 
 #include <sys/_posix.h>
@@ -106,6 +107,10 @@ sysconf(name)
 		mib[0] = CTL_KERN;
 		mib[1] = KERN_POSIX1;
 		break;
+	case _SC_IOV_MAX:
+		mib[0] = CTL_KERN;
+		mib[1] = KERN_IOV_MAX;
+		break;
 
 /* 1003.2 */
 	case _SC_BC_BASE_MAX: