system is openbsd.3.9 and squid.2.6. i saw notes "Squid calls these ``ARP ACLs'' and they are supported on Linux, Solaris, and probably BSD variants." in FAQ. when i compile --enable-arp-acl options i get error like this In file included from /usr/include/sys/sysctl.h:53, from acl.c:3062: /usr/include/uvm/uvm_extern.h:264: error: syntax error before '+' token acl.c: In function `aclMatchArp': acl.c:3411: error: syntax error before "ME" acl.c: In function `aclArpCompare': acl.c:3478: error: syntax error before "ME" *** Error code 1 Stop in /tmp/squid-2.6.STABLE1/src. *** Error code 1 Stop in /tmp/squid-2.6.STABLE1/src (line 907 of Makefile). *** Error code 1 Stop in /tmp/squid-2.6.STABLE1/src (line 612 of Makefile). *** Error code 1 Stop in /tmp/squid-2.6.STABLE1 (line 352 of Makefile). can i install squid with --enable-arp-acl options on my openbsd.3.9 ? best regards