I try to run some of the mode 'alpha' as described in the
README_benchmark_CK2.txt but this ended up with different
preconditions non validated (for alpha=1,4,5 or 8 with beta=9)
by namespace CGAL { and } //namespace CGAL. in all .h and .cpp files
in a directory.
Apply it to all packages in the trunk
Remove macro definition from the config.h file.