How do you install CGAL with QT5 on Ubuntu 18:04?

Question

I have run:

apt-get install -y libcgal-ipelets libcgal-dev libcgal-qt5-dev libcgal-demo

But when I try and compile a simple CGAL program with cmake using:

cmake_minimum_required(VERSION 3.1)
project(test_cgal)
#CGAL_Qt5 is needed for the drawing and CGAL_Core is needed for this special Kernel.
find_package(CGAL REQUIRED COMPONENTS Qt5 Core)
if(CGAL_FOUND AND CGAL_Qt5_FOUND)
  #required to use basic_viewer
  add_definitions(-DCGAL_USE_BASIC_VIEWER -DQT_NO_KEYWORDS)
  #create the executable of the application
  add_executable(test_ test_cgal.cpp)
  #link it with the required CGAL libraries
  target_link_libraries(test_ CGAL::CGAL CGAL::CGAL_Qt5 CGAL::CGAL_Core)
else()
  message("ERROR: this program requires CGAL and CGAL_Qt5 and will not be compiled.")
endif()

I get this error:

-- libCGAL_Qt5 is missing the dependencies:  Qt5Svg Qt5 cannot be configured.
CMake Error at /usr/lib/x86_64-linux-gnu/cmake/CGAL/CGALConfig.cmake:137 (message):
  ERROR: The CGAL_Qt5 library was not configured.
Call Stack (most recent call first):
  /usr/lib/x86_64-linux-gnu/cmake/CGAL/CGALConfig.cmake:147 (check_cgal_component)
  CMakeLists.txt:43 (find_package)

I don't understanding why it's complaining about QT5 when I've installed libcgal-qt5-dev.

Harassed

You still need to install more Qt5 packages (libqt5svg5-dev?). Yes, maybe they could be added as dependencies (or at least recommendations) for libcgal-qt5-dev... They do appear as suggestions for libcgal-demo. – Pleasantry

Thank you that allowed me to run seem cmake but make fails with: /app/test_cgal.cpp:4:10: fatal error: CGAL/draw_surface_mesh.h: No such file or directory #include <CGAL/draw_surface_mesh.h>. I'm just trying to compile the example from: github.com/CGAL/cgal/wiki/… – Harassed

This example is taken from CGAL 4.12, but in the package manager of Ubuntu, it is only CGAL 4.11. If you want to use the draw_...() functions, you need at least 4.12. You can get it from github for example, no need to build, it is header-only. – Flaky

Answer 1

I needed apt-get install libqt5svg5-dev

Harassed