* installing *source* package ‘ahull3D’ ...
** this is package ‘ahull3D’ version ‘1.0.1’
** using staged installation
*** pkg-config is installed but 'pkg-config --exists CGAL' did not return 0.
*** We need CGAL (>= 4.14) to proceed.
*** On Ubuntu/Debian: sudo apt-get install libcgal-dev
*** On macOS: brew install cgal
*** On Fedora: sudo dnf install CGAL-devel
ERROR: configuration failed for package ‘ahull3D’
* removing ‘/srv/hornik/tmp/CRAN_pretest/ahull3D.Rcheck/ahull3D’