```
$ bmake
=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Building for bitcoin-0.20.1nb3
Making all in src
gmake[1]: Entering directory '/home/pbulk/build/finance/bitcoin/work/bitcoin-0.20.1/src'
gmake[2]: Entering directory '/home/pbulk/build/finance/bitcoin/work/bitcoin-0.20.1/src'
gmake[3]: Entering directory '/home/pbulk/build/finance/bitcoin/work/bitcoin-0.20.1'
gmake[3]: Leaving directory '/home/pbulk/build/finance/bitcoin/work/bitcoin-0.20.1'
  CXXLD    bitcoin-tx
Undefined                       first referenced
 symbol                             in file
freeifaddrs                         libbitcoin_util.a(libbitcoin_util_a-randomenv.o)
getifaddrs                          libbitcoin_util.a(libbitcoin_util_a-randomenv.o)
ld: fatal: symbol referencing errors. No output written to .libs/bitcoin-tx
collect2: error: ld returned 1 exit status
gmake[2]: *** [Makefile:7355: bitcoin-tx] Error 1
gmake[2]: Leaving directory '/home/pbulk/build/finance/bitcoin/work/bitcoin-0.20.1/src'
gmake[1]: *** [Makefile:17263: all-recursive] Error 1
gmake[1]: Leaving directory '/home/pbulk/build/finance/bitcoin/work/bitcoin-0.20.1/src'
gmake: *** [Makefile:782: all-recursive] Error 1
*** Error code 2

Stop.
bmake[1]: stopped in /data/pkgsrc/finance/bitcoin
*** Error code 1
```

I found [this](https://github.com/pydron/ifaddr/issues/23), which seems to be the same issue, but on a Python context.

Previous issues with compiling on Illumos seem to have been sorted out (#15708 & more), but now it's stuck here.
: addrman(addrman_in), nSeed0(nSeed0In), nSeed1(nSeed1In)
{
    SetTryNewOutboundPeer(false);
    Options connOptions;
    Init(connOptions);
    SetNetworkActive(network_active);
}
NodeId CConnman::GetNewNodeId()
{
    return nLastNodeId.fetch_add(1, std::memory_order_relaxed);
}
bool CConnman::Bind(const CService &addr, unsigned int flags, NetPermissionFlags permissions) {
    if (!(flags & BF_EXPLICIT) && !IsReachable(addr))
        return false;
    bilingual_str strError;
    if (!BindListenPort(addr, strError, permissions)) {
        if ((flags & BF_REPORT_ERROR) && clientInterface) {
            clientInterface->ThreadSafeMessageBox(strError, "", CClientUIInterface::MSG_ERROR);
        }
        return false;
    }
    if (addr.IsRoutable() && fDiscover && !(flags & BF_DONT_ADVERTISE) && !(permissions & PF_NOBAN)) {
        AddLocal(addr, LOCAL_BIND);
    }
    return true;
}
bool CConnman::InitBinds(