#!bin/bash
PATH_TO_CGAL="$1"
cd $PATH_TO_CGAL
#If set, the pattern ‘**’ used in a filename expansion context
#will match all files and zero or more directories and subdirectories. 
#If the pattern is followed by a ‘/’, only directories and subdirectories match.
shopt -s globstar
for DIR in *; do
  DOC_DIR=$DIR/doc/$DIR/CGAL
  if [ -d "$DOC_DIR" ]; then
    cd $DOC_DIR
    for DOC_FILE in **/*.h; do
      #if the file does not exist in the package
      if  [ ! -f $PATH_TO_CGAL/*/include/CGAL/$DOC_FILE ]; then
        echo "$DOC_DIR/$DOC_FILE "
      fi
    done
  cd $PATH_TO_CGAL
  fi
done