[SailfishDevel] PKGCONFIG entry in project .pro file

[christopher.lamb at thurweb.ch]

Hi All

When / why is a PKGCONFIG entry required in a Sailfish .pro file?

Is there a better way of specifying the same (e.g. via a .yaml entry)?

As an example, I am playing around with GStreamer. If I have the  
following entry n my .pro file then the project builds and deploys ok.

PKGCONFIG += gstreamer-0.10

However if the entry is missing, then I get the error:

gst/gstelement.h: No such file or directory

Chris