Hi Matthew,
When I download the latest version of PD for Mac and uncompress it, all I get is one file - the PD app. Does anyone know ho w I can build flext if this is all I get? Perhaps I have downloaded the wrong version of PD?
no, it's just alright. On OSX, an application is a bundle, which is a kind of folder in disguise. You can see the contents with right-click and "see package contents" (or similar, i'm not on a Mac right now) For flext compilation you'd specify something like PDPATH=/Applications/Pd-0.38-3.app/Contents/Resources which points to the PD folder inside the app bundle.
best greetings, Thomas