Defines the order in which Kwalitee tests should be run.
Checks for file with .c, .h or .xs extensions.
Check is the module depends on any of the Inline:: modules or
on ExtUtils::CBuilder or ExtUtils::ParseXS.
How to recognize cases such as http://search.cpan.org/dist/Perl-API/
that generate the .c files during installation
In addition there are modules that can work without their XS part.
E.g. Scalar-List-Utils, Net-DNS, Template-Toolkit
For our purposes these all should be marked as need C compiler
as they need it for their full functionality and speed.
No Kwalitee Indicator.