1 files changed, 2 insertions, 0 deletions

diff --git a/m4/check-os-options.m4 b/m4/check-os-options.m4
index 3cb2f82..f2ff57f 100644
--- a/m4/check-os-options.m4
+++ b/m4/check-os-options.m4
@@ -21,6 +21,8 @@ case $host_os in
                 # public source:
                 # http://www.opensource.apple.com/source/Libc/Libc-997.90.3/gen/FreeBSD/arc4random.c
                 USE_BUILTIN_ARC4RANDOM=yes
+                # Not available on iOS
+                AC_CHECK_HEADER([arpa/telnet.h], [], [BUILD_NC=no])
                 ;;
         *freebsd*)
                 HOST_OS=freebsd