GMP and MPFR

[petrasvestartas]

Hi,

I link cgal and gmp and mpfr static libraries to my library but I still need to manually copy the libgmp-10.dll and libmpfr-4.dll .dlls for these libraries. Is there a way to compile code so that cgal and gmp and mpfr would part of one single file? If yes how?

This how I currently link them and of course cgal headers:

  target_link_libraries(
  wood_cpp_nano_ext
  PUBLIC     
  ${CMAKE_SOURCE_DIR}/src/wood_cpp/cmake/build/install/cgal/auxiliary/gmp/lib/libgmp-10.lib
  ${CMAKE_SOURCE_DIR}/src/wood_cpp/cmake/build/install/cgal/auxiliary/gmp/lib/libmpfr-4.lib)
 
 ...
 list(APPEND include_paths "${CMAKE_SOURCE_DIR}/src/wood_cpp/cmake/build/install/cgal/auxiliary/gmp/include")

[efifogel]

Are you certain that these lib files are actually static libraries (containing object files)and NOT import libraries (containing symbols to allow the linker to link to a DLL)? ____ _ ____ _ /_____/_) o /__________ __ // (____ ( ( ( (_/ (_/-(-'_(/ _/

…

On Thu, 11 Apr 2024 at 02:09, Petras Vestartas ***@***.***> wrote: Hi, I link gmp and mpfr static libraries to my library but I still need to manually copy the .dlls for these libraries. Is there a way to compile code so that cgal and gmp and mpfr would part of one single library? If yes how? This how I currently link them and of course cgal headers: target_link_libraries( wood_cpp_nano_ext PUBLIC ${CMAKE_SOURCE_DIR}/src/wood_cpp/cmake/build/install/cgal/auxiliary/gmp/lib/libgmp-10.lib ${CMAKE_SOURCE_DIR}/src/wood_cpp/cmake/build/install/cgal/auxiliary/gmp/lib/libmpfr-4.lib) ... list(APPEND include_paths "${CMAKE_SOURCE_DIR}/src/wood_cpp/cmake/build/install/cgal/auxiliary/gmp/include") — Reply to this email directly, view it on GitHub <#8136>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABVBNOHTFDRKPKWHIHYCAQTY4XBAZAVCNFSM6AAAAABGBI4XBWVHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZWGQ4DSMBXGQ> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[afabri]

The LGPL requires dynamic linking. And Efi is right that the .lib files are stub files.

[afabri]

It neeeds at least 1.72 (the latest being 1.84)

[afabri]

And it works on all platforms. And I forgot to say that for CORE_Expr, that is the number type dealing with algebraic numbers GMP is still needed if one uses the public release. When using the master branch even this no longer needs GMP.

[petrasvestartas]

I think I do not completely understand the last remark about CORE_Expr.
Does it mean if I am using exact kernel i still need GMP .dll?
Does CORE_Expr is needed for any of the following headers?

//  CGAL
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
#include <CGAL/intersections.h>
#include <CGAL/Bbox_2.h>
#include <CGAL/Bbox_3.h>
#include <CGAL/Plane_3.h>
#include <CGAL/Boolean_set_operations_2.h>

// CGAL meshing 2D
#include <CGAL/Constrained_Delaunay_triangulation_2.h>
#include <CGAL/Triangulation_face_base_with_info_2.h>
#include <CGAL/Polygon_2.h>

// CGAL closest polylines
#include <CGAL/box_intersection_d.h>
#include <CGAL/Iterator_range.h>
#include <CGAL/tuple.h>
#include <CGAL/boost/iterator/counting_iterator.hpp>

// CGAL mesh boolean
#include <CGAL/Surface_mesh.h>
#include <CGAL/Polygon_mesh_processing/corefinement.h>
#include <CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h>
#include <boost/container/flat_map.hpp>
#include <CGAL/Polygon_mesh_processing/compute_normal.h>

using IK = CGAL::Exact_predicates_inexact_constructions_kernel;
using EK = CGAL::Exact_predicates_exact_constructions_kernel;
typedef CGAL::Cartesian_converter<IK, EK> IK_to_EK;
typedef CGAL::Cartesian_converter<EK, IK> EK_to_IK;
using CGAL_Polyline = std::vector<IK::Point_3>;
using CGAL_Polylines = std::list<CGAL_Polyline>;
typedef typename CGAL::Box_intersection_d::Box_with_info_d<double, 3, std::pair<std::size_t, std::size_t>> Box;
typedef CGAL::Surface_mesh<IK::Point_3> Mesh;
namespace PMP = CGAL::Polygon_mesh_processing;

struct FaceInfo2
{
    FaceInfo2() {}
    int nesting_level;
    bool in_domain()
    {
        return nesting_level % 2 == 1;
    }
};

typedef CGAL::Triangulation_vertex_base_2<IK> Vb;
typedef CGAL::Triangulation_face_base_with_info_2<FaceInfo2, IK> Fbb;
typedef CGAL::Constrained_triangulation_face_base_2<IK, Fbb> Fb;
typedef CGAL::Triangulation_data_structure_2<Vb, Fb> TDS;
typedef CGAL::Exact_predicates_tag Itag;
typedef CGAL::Constrained_Delaunay_triangulation_2<IK, TDS, Itag> CGALCDT;
typedef CGALCDT::Point Point;
typedef CGAL::Polygon_2<IK> Polygon_2;
typedef CGALCDT::Face_handle Face_handle;

For CMakeLists I am doing the following:

  ########################################################################
  # BOOST
  ########################################################################
  ExternalProject_Add(boost
    URL https://boostorg.jfrog.io/artifactory/main/release/1.78.0/source/boost_1_78_0.tar.gz
    CONFIGURE_COMMAND ""
    BUILD_COMMAND ""
    INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/boost ${CMAKE_BINARY_DIR}/install/boost/include/boost
  )

  ########################################################################
  # CGAL
  ######################################################################## 

  ExternalProject_Add(cgal
    URL https://github.com/CGAL/cgal/releases/download/v5.5.1/CGAL-5.5.1-library.zip
    #GIT_REPOSITORY https://github.com/CGAL/cgal.git
    #GIT_TAG v5.4.1
    CMAKE_ARGS
      -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
      -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
      -DCGAL_DISABLE_GMP=ON
    SOURCE_DIR   "${CMAKE_BINARY_DIR}/install/cgal"
    BUILD_ALWAYS "" #do not build
    INSTALL_COMMAND "" #installer for now is empty
  )

[afabri]

No it is not needed.

[petrasvestartas]

Thank you

[petrasvestartas]

Update: mesh_boolean and triangulation is still using GMP dynamic even the flag is turned on according to compiler.