Not really MacPorts problem, I don't think.

[Joshua Root]

> At 8:42 PM -0600 1/22/15, Ryan Schmidt wrote:
>>So launchd is launching apache too early. I believe there are some 
>>keys one can use in a launchd plist that would affect when launchd 
>>tries to launch a service. If you can find a launchd plist key/value 
>>that fixes this issue, MacPorts could be enhanced to offer portfile 
>>authors a way to use that key, or to use that key/value by default 
>>even.
> 
> I'm not expert, but would the NetworkState key help?  See:
> 
> http://launchd.info/
> 
> Goto "Configuration", scroll down to "...Depending on Network Availability:"

We do have startupitem.netchange.

- Josh