Determine variant of dependency

[Michael Wild]

Hi all

I'm writing currently a Portfile for an application which depends on 
port:qt4-mac. Unfortunately, that port has the variant +framework which 
builds the qt4 libraries as frameworks. Unfortunately this changes the 
whole build process for my port. Now I would have to determine the 
variant with which qt4-mac is installed in order to able to build my 
port. Is there any way I can do that with the means provided by MacPorts?

Thanks for the help


Michael