After configure and compiling dovecot-2.0.13, running "make check" fails on a few tests on sparc/solaris

net_is_in_network(0) ................................................. : ok net_is_in_network(1) ................................................. : ok net_is_in_network(2) ................................................. : ok net_is_in_network(3) ................................................. : ok net_is_in_network(4) ................................................. : ok net_is_in_network(5) ................................................. : ok net_is_in_network(6) ................................................. : ok net_is_in_network(7) ................................................. : ok net_is_in_network(8) ................................................. : ok net_is_in_network(9) ................................................. : ok net_is_in_network(10) ................................................ : ok net_is_in_network(11) ................................................ : FAILED net_is_in_network(12) ................................................ : FAILED net_is_in_network(13) ................................................ : ok net_is_in_network(14) ................................................ : ok net_is_in_network(15) ................................................ : ok net_is_in_network(16) ................................................ : ok

The failing tests are for { "255.255.255.255", "128.0.0.0", 1, TRUE }, { "255.255.255.255", "127.0.0.0", 1, FALSE } src/lib/network.c src/lib/test-network