Brewing GRASS with PostgreSQL support?

Question

On my Mac, running OS X 10.10.5 and I installed Grass with homebrew:

brew tap osgeo/osgeo4mac
brew install grass-70

Unfortunately, I cannot choose the pg driver in the db.login menu.

Can anyone tell me how to install it or how to brew Grass with the pg driver activated?

Answer 1

When you look at the grass-70 recipe info from homebrew, you'll see:

Rainers-MacBook-Pro:~ rainerkrug$ brew info grass-70
osgeo/osgeo4mac/grass-70: stable 7.0.1
Geographic Resources Analysis Support System
http://grass.osgeo.org/
/usr/local/Cellar/grass-70/7.0.1 (3708 files, 83M) *
  Built from source with: --with-mysql --with-postgresql --with-liblas
From: https://github.com/osgeo/homebrew-osgeo4mac/blob/master/Formula/grass-70.rb
==> Dependencies
Build: pkg-config ✔
Required: gettext ✔, readline ✔, gdal ✔, libtiff ✔, unixodbc ✔, fftw ✔, wxpython ✔, cairo ✔, ghostscript ✔
Optional: openblas ✘, liblas ✔, netcdf ✔, ffmpeg ✔
==> Options
--with-ffmpeg
    Build with ffmpeg support
--with-liblas
    Build with liblas support
--with-mysql
    Build with mysql support
--with-netcdf
    Build with netcdf support
--with-openblas
    Build with openblas support
--with-postgresql
    Build with postgresql support
--without-gui
    Build without WxPython interface. Command line tools still available.
Rainers-MacBook-Pro:~ rainerkrug$

The important line is:

--with-postgresql
    Build with postgresql support

In other words - the default install of grass-70 via homebrew does not include postgresql support.

So to install grass with postgresql, you have to use:

brew install grass-70 --with-postgresql

This will also install all the necessary dependencies.