CGAL users discussion list

[Sebastien Loriot <>]

Most probably, the example your are using does not match with the
release of CGAL you are using.

You can rename CGAL_Eigen3_support to CGAL_Eigen_support in the 
CMakeLists.txt and it should work.


The change was introduced by this PR:
https://github.com/CGAL/cgal/pull/5360

only merged in the master branch targeting CGAL 5.3


Best,

Sebastien.

On 4/19/21 11:18 AM, Anthony Webber wrote:
> Please excuse my naivety.
>
> I am attempting to build the Poisson_surface_reconstruction_3 example. 
> Below is the cmake output. Could you tell me what I need to do?
>
> cmake -DCMAKE_BUILD_TYPE=Release .
> -- The C compiler identification is GNU 9.3.0
> -- The CXX compiler identification is GNU 9.3.0
> -- Check for working C compiler: /usr/bin/cc
> -- Check for working C compiler: /usr/bin/cc -- works
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- Detecting C compile features
> -- Detecting C compile features - done
> -- Check for working CXX compiler: /usr/bin/c++
> -- Check for working CXX compiler: /usr/bin/c++ -- works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Detecting CXX compile features
> -- Detecting CXX compile features - done
> -- Using header-only CGAL
> -- Targetting Unix Makefiles
> -- Using /usr/bin/c++ compiler.
> -- Found GMP: /usr/local/lib/libgmp.so
> -- Found MPFR: /usr/lib/x86_64-linux-gnu/libmpfr.so
> -- Found Boost: 
> /usr/lib/x86_64-linux-gnu/cmake/Boost-1.71.0/BoostConfig.cmake (found 
> suitable version "1.71.0", minimum required is "1.48")
> -- Boost include dirs: /usr/include
> -- Boost libraries:
> -- Using gcc version 4 or later. Adding -frounding-math
> -- Found Eigen3: /usr/local/include/eigen3 (found suitable version 
> "3.4.99", minimum required is "3.1.0")
> CMake Error at CMakeLists.txt:34 (include):
>    include could not find load file:
>
>      CGAL_Eigen3_support
>
>
> -- NOTICE: The examples need Eigen 3.1 (or greater) will not be compiled.
> -- Configuring incomplete, errors occurred!