[pgrouting-dev] 2.0 branch CGAL dependency and GEOS 3.4dev

[Stephen Woodbridge]

On 5/10/2013 9:53 AM, Stephen Mather wrote:
> Apologies for the last e-mail with vague subject line.  Another thought
> on pgRouting dependencies-- any plans for cgal to be dropped once GEOS
> 3.4 is readily available?  It seems like it could be with Delaunay being
> on GEO 3.4dev, but I don't know when the line gets moved for minimum
> GEOS version (obviously sometime after it's no longer a dev version).

Yes, that is the ultimate plan. We have a little chicken vs egg issue in 
that we need the new postgis functions so we can rewrite our code as you 
point out. We also have to be careful to not set the required postgis 
version too high too soon, because that will be a problem for the 
packagers where new releases lag behind.

We have another options:

1. I have code that I could contribute as an interim solution, but that 
seems like a lot of work.

2. we could provide both a CGAL (depreciated) and a postgis SQL only 
solution that would only work if you have GEOS 3.4 install.

So we will see how this evolves, given other work, release deadlines, 
pull requests, funding, etc.

Thanks,
   -Steve W