CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

On 10/11/2013 05:34 PM, mytien wrote:
> Hello,
> I ran into the same problem, I use Eigen 3.2 and added #define
> CGAL_EIGEN3_ENABLED, but the error still occures. Does that mean that I did
> not install it correctly?
> I downloaded the zip for Eigen 3.2.0 here:
> http://eigen.tuxfamily.org/index.php?title=Main_Page
> Then I extracted it and copied the signature_of_eigen3_matrix_library as
> well as the header folder called "Eigen" to my minGW/include folder.
>
> When I configured CGAL with Eigen support in cmake, it found Eigen and did
> not throw errors, also generating the makefile as well as running make and
> make install on CGAL worked. So I assumed, everything was alright. But maybe
> I missed a step?
IIRC correctly the configuration of Eigen is not cached by cmake while 
configuring CGAL.

You need to have in you cmake file something like:

  find_package(Eigen3 3.1.0)
  if (EIGEN3_FOUND)
    include( ${EIGEN3_USE_FILE} )
  endif()

Sebastien.

> Can you please explain, how you added Eigen support to your CGAL
> installation?
>
>
>
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