done regularly and I couldn't find a better place...)
file gpsbabel | grep '2 architectures' || exit 1
file gui/objects/gpsbabelfe-bin.app/Contents/MacOS/gpsbabelfe-bin | grep '2 architectures' || exit 1
cd gui ; qmake && xcodebuild
+ lupdate
+ lrelease
cp gpsbabel gui/objects/gpsbabelfe-bin.app/Contents/MacOS
cp -r gui/help gui/objects/gpsbabelfe-bin.app/Contents/MacOS
cp gui/gmapbase.html gui/objects/gpsbabelfe-bin.app/Contents/MacOS