--- configure.orig	2017-09-21 17:32:54 UTC
+++ configure
@@ -6817,7 +6817,7 @@ fi
 done
 
 		case "$host" in
-		*-*-freebsd[7-9].* | *-*-freebsd1[0-1].* )
+		*-*-freebsd[7-9].* | *-*-freebsd[1-9][0-9].*)
 			# FreeBSD 7.x and later SCTP support doesn't need -lsctp.
 			;;
 		*)
@@ -7392,7 +7392,7 @@ ac_cv_lib_kstat=ac_cv_lib_kstat_main
 			enable_cpuutil="kstat - auto"
 			NETCPU_SOURCE="kstat"
 			;;
-                     *-*-freebsd[4-9].* | *-*-freebsd1[0-1].* | *-*-netbsd[1-9].* )
+                     *-*-freebsd[4-9].* | *-*-freebsd[1-9][0-9].* | *-*-netbsd[1-9].* )
 			use_cpuutil=true
 
 $as_echo "#define USE_SYSCTL /**/" >>confdefs.h