CMAKE ExternalProject_Add

[petrasvestartas]

Issue Details

Please explain me how do you use CMake ExternalProject_Add with CGAL.

I am trying to avoid manual download of multiple libraries, for new persons at IBOIS, EPFL because learning how to link them takes weeks for new coders... The goal of this post is to download boost and eigen and cgal. I found a working example for boost and eigen, but I do not know how to download cgal with GMP and MPFR libraries, for Windows 64bits.

Please refere to my last comment of the source code.

Petras Please be Specific

CGAL is downloaded automatically but libgmp-10.dll and libmpfr-4.dll are not.

Source Code

########################################################################
# Project Description
########################################################################
project(udivone-superbuild)
cmake_minimum_required(VERSION 3.19)
cmake_policy(SET CMP0097 NEW)
include(ExternalProject)

set(LIB_DEBUG_SUFFIX "")
if (MSVC)
  set(LIB_DEBUG_SUFFIX "d")
endif ()

########################################################################
# Boost
########################################################################
if (WIN32)
  set(BOOST_BOOTSTRAP_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/bootstrap.bat)
  set(BOOST_BUILD_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/b2.exe)
elseif (UNIX)
  set(BOOST_BOOTSTRAP_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/bootstrap.sh)
  set(BOOST_BUILD_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/b2)
endif ()

ExternalProject_Add(boost
  GIT_REPOSITORY https://github.com/boostorg/boost.git
  GIT_TAG boost-1.78.0
  CONFIGURE_COMMAND ${BOOST_BOOTSTRAP_CMD}
  BUILD_COMMAND
    ${BOOST_BUILD_CMD}
    --prefix=${CMAKE_INSTALL_PREFIX}
    -sZLIB_LIBRARY_PATH=${CMAKE_INSTALL_PREFIX}/lib
    --without-python
    address-model=64
    variant=debug,release
    link=shared
    runtime-link=shared
    threading=multi
    install
  BUILD_IN_SOURCE 1
  INSTALL_COMMAND ""
)

########################################################################
# Eigen
########################################################################
ExternalProject_Add(eigen
  GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git
  GIT_TAG 3.4.0
  CMAKE_ARGS
    -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX}
)

########################################################################
# CGAL HOW TO DO THIS PROPERLY?
########################################################################
ExternalProject_Add(cgal
  GIT_REPOSITORY https://github.com/CGAL/cgal.git
  GIT_TAG v5.4.1
  CMAKE_ARGS
    -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX}
)

Environment

• Operating system (Windows 64 bits):
• Compiler: MSVC
• Release or debug mode: Release
• Specific flags used (if any): None
• CGAL version: Latest
• Boost version: boost-1.78.0
• Other libraries versions if used (Eigen, TBB, etc.): Eigen 3.4.0

[petrasvestartas]

This is how you can install CGAL with its dependencies in one single bash:
cmake -DGET_LIBS=ON -DBUILD_MY_PROJECTS=ON -DBUILD_SHARED_LIBS=ON -G "Visual Studio 17 2022" -A x64 .. && cmake --build . --config Release

🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐
🥐 This is cmake for boost, eigen, cgal and auxiliary dependencies 🥐
🥐 Hope this works on other computers as well 🥐
🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐 🥐

P.S. I wish installation of Boost would be smaller and take less times, Boost is more than 3GB... feels like downloading the whole internet.

########################################################################
# REFERENCES AND BASH COMMANDS
########################################################################

#https://github.com/hshikata/udivone/blob/daba4ea493189c9e0118328d5f863f6a9f3cbf2e/superbuild/CMakeLists.txt
#https://github.com/simogasp/eesepDependencies/blob/994c701d29b753eefbe5a39cad38e5f880a31786/CMakeLists.txt
#https://fuchsia.googlesource.com/cobalt/+/refs/tags/v0.1.3/CMakeLists.txt

# bash commands
# cmake -DGET_LIBS=ON -DBUILD_MY_PROJECTS=OFF  -DBUILD_SHARED_LIBS=ON -G "Visual Studio 17 2022" -A x64 .. && cmake --build . --config Release
# cmake -DGET_LIBS=OFF -DBUILD_MY_PROJECTS=ON  -DBUILD_SHARED_LIBS=ON -G "Visual Studio 17 2022" -A x64 .. && cmake --build . --config Release
# Release\my_exe


########################################################################
#PROJECT INTIALIZATION
########################################################################
project(superbuild LANGUAGES CXX)
cmake_minimum_required(VERSION 3.19)


set(CMAKE_BUILD_TYPE_INIT "Release")

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

########################################################################
# START SUPERBUILD
########################################################################

SET(GET_LIBS "" CACHE STRING "Set option to download dependencies")

cmake_policy(SET CMP0097 NEW)
include(ExternalProject)

set(LIB_DEBUG_SUFFIX "")
if (MSVC)
  set(LIB_DEBUG_SUFFIX "d")
endif ()

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

SET(GET_LIBS "" CACHE STRING "Set option to download dependencies")
if (GET_LIBS)

ExternalProject_Add(cgal
  URL https://github.com/CGAL/cgal/releases/download/v5.4.1/CGAL-5.4.1-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}
    #-DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX}
  SOURCE_DIR   "${CMAKE_BINARY_DIR}/install/cgal"
  BUILD_ALWAYS "" #do not buld
  INSTALL_COMMAND "" #installer for now is empty
)


ExternalProject_Add(cgal_dependencies
  URL https://github.com/CGAL/cgal/releases/download/v5.4.1/CGAL-5.4.1-win64-auxiliary-libraries-gmp-mpfr.zip
  CMAKE_ARGS
    -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
    #-DCMAKE_INSTALL_PREFIX:PATH="${CMAKE_BINARY_DIR}/install"
  SOURCE_DIR   "${CMAKE_BINARY_DIR}/install/cgal/auxiliary"
    #INSTALL_DIR   "${CMAKE_INSTALL_PREFIX}/install"
  CONFIGURE_COMMAND "" #do not configure
  BUILD_COMMAND "" #do not buld
  INSTALL_COMMAND "" #installer for now is empty
)


########################################################################
# Boost
########################################################################


  if (WIN32)
    set(BOOST_BOOTSTRAP_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/bootstrap.bat)
    set(BOOST_BUILD_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/b2.exe)
  elseif (UNIX)
    set(BOOST_BOOTSTRAP_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/bootstrap.sh)
    set(BOOST_BUILD_CMD ${CMAKE_CURRENT_BINARY_DIR}/boost-prefix/src/boost/b2)
  endif ()

  ExternalProject_Add(boost
    GIT_REPOSITORY https://github.com/boostorg/boost.git
    GIT_TAG boost-1.78.0
    CONFIGURE_COMMAND ${BOOST_BOOTSTRAP_CMD}
    BUILD_COMMAND
      ${BOOST_BUILD_CMD}
      --prefix=${CMAKE_BINARY_DIR}/install/boost
      -sZLIB_LIBRARY_PATH=${CMAKE_BINARY_DIR}/install/boost/lib
      --without-python
      address-model=64
      variant=debug,release
      link=shared
      runtime-link=shared
      threading=multi
      install
    BUILD_IN_SOURCE 1
    INSTALL_COMMAND ""
    #SOURCE_DIR "${CMAKE_BINARY_DIR}/install/boost" #install directory is in build/install/eigen
  )



########################################################################
# EIGEN
########################################################################

  message(AUTHOR_WARNING "GET_LIBS_" ${GET_LIBS})
  ExternalProject_Add(eigen
    GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git
    GIT_TAG 3.4.0
    CMAKE_ARGS
      -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
      -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
      -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/install/eigen #has not effect
    SOURCE_DIR   "${CMAKE_BINARY_DIR}/install/eigen" #install directory is in build/install/eigen
    BUILD_COMMAND "" #do not build
    INSTALL_COMMAND "" #do not install
  )

endif ()
#[[
]]

###############################################################################
#EXECUTABLE THANK LINK HEADER ONLY DIRECTORY
###############################################################################
SET(BUILD_MY_PROJECTS "" CACHE STRING "Build Project")
if (BUILD_MY_PROJECTS)
message(AUTHOR_WARNING "BUILD_MY_PROJECTS_" ${BUILD_MY_PROJECTS})
message(AUTHOR_WARNING "${CMAKE_BINARY_DIR}/install/boost/include/boost-1_78/")

list(APPEND includePath 
"${CMAKE_BINARY_DIR}/install/boost/include/boost-1_78/"
"${CMAKE_BINARY_DIR}/install/eigen/"
"${CMAKE_BINARY_DIR}/install/cgal/include"
"${CMAKE_BINARY_DIR}/install/cgal/auxiliary/gmp/include"
)


  add_executable(my_exe main.cpp)
  #include_directories("${CMAKE_BINARY_DIR}/install/eigen/") #add directory of the EIGEN header-only library 
  #target_include_directories(my_exe PRIVATE "${CMAKE_BINARY_DIR}/install/boost/include/boost-1_78/") #add directory of the EIGEN header-only library 
  target_include_directories(my_exe PRIVATE "$<BUILD_INTERFACE:${includePath}>") #add directory of the EIGEN header-only library 
endif ()

[tensor-works]

Hello Petra, I have been trying this and wanted to make sure the target name once this is created in CGAL::CGAL, my cmake seems unable to find the target.