* installing *source* package 'ahull3D' ...
** this is package 'ahull3D' version '1.0.1'
** using staged installation
Checking for CGAL on Windows...
ERROR: CGAL not found on Windows!
Please install CGAL via Rtools:
  pacman -S mingw-w64-x86_64-cgal mingw-w64-x86_64-gmp mingw-w64-x86_64-mpfr

Installation will now fail.
ERROR: configuration failed for package 'ahull3D'
* removing 'd:/RCompile/CRANincoming/R-devel/lib/ahull3D'
* restoring previous 'd:/RCompile/CRANincoming/R-devel/lib/ahull3D'