[Qgis-user] Compiling QGIS3 with grass7 from MacPorts

[David Liontooth]

I'm interested in reading LIDAR data, which appears to require GRASS 
(I'm new to this).

I'm trying to compile QGIS2.99 (master) on OS X and short of GRASS 
everything is working -- the program starts up with

     open QGIS

MacPorts has gdal-grass @2.2.0 (gis), which pulls in grass7. It ends up 
here:

     /opt/local/share/grass-7.2.2/lib

so for instance /opt/local/share/grass-7.2.2/lib/libgrass_lidar.dylib.

How do I tell the QGIS build scripts to include grass7?

Cheers,
Dave