Need some help: qt port/pkg vs. qmake port/pkg

[Danny Pansters]

For the py-sip port:

How do I find out if having qt also implies having qmake (if build from ports) 
or if qmake should be build to include qt support in sip (if qt from package 
and no qmake)?

If I put no BUILD_DEPENDS in the Makefile, it will probably find qmake but 
croak if it's not present. (a configure switch to build without qt was 
recently abandoned). So it will work if qt was installed from ports but not 
if the user installed it from package. Then I should have a build dependency 
for qmake.

How do I do that?

Thanks,

Dan