+
+ # Fill in some constants not found in the system header files
+ Set("SOL_TCP" => 6); # missing in /usr/include/netinet/tcp.h
+ if (IsGiven("CONFIG_UCW_DIRECT_IO") && IsSet("CONFIG_UCW_DIRECT_IO")) {
+ Fail("Direct I/O is not available on darwin");
+ } else {
+ UnSet("CONFIG_UCW_DIRECT_IO");
+ }