```
$ 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.
if (!pnode->fDisconnect) {
                        LogPrint(BCLog::NET, "socket recv error for peer=%d: %s\n", pnode->GetId(), NetworkErrorString(nErr));
                    }
                    pnode->CloseSocketDisconnect();
                }
            }
        }
        if (sendSet) {
            
            size_t bytes_sent = WITH_LOCK(pnode->cs_vSend, return SocketSendData(*pnode));
            if (bytes_sent) RecordBytesSent(bytes_sent);
        }
        if (RunInactivityChecks(*pnode) && InactivityCheck(*pnode)) pnode->fDisconnect = true;
    }
    {
        LOCK(cs_vNodes);
        for (CNode* pnode : vNodesCopy)
            pnode->Release();
    }
}
void CConnman::ThreadSocketHandler()
{
    while (!interruptNet)
    {
        DisconnectNodes();
        NotifyNumConnectionsChanged();
        SocketHandler();
    }
}
void CConnman::WakeMessageHandler()