antirez/hiredis — comment on commit b3290392d9023f47b0840912311138ff58ecbfe3
File:  line 0
By koenvandesande:

There's a problem with this: what if the socket error is (again) EINPROGRESS (and the connection is blocking, but that's not very relevant)?
The version bundled with Redis 2.4.7 works correctly for me on Linux, while the current hiredis master fails with this error upon redisConnect.