Suppose that you have some C files implementing some functionality,
and the corresponding header files. How to create an extension which
-makes this functionality accessable in Perl? The example below
+makes this functionality accessible in Perl? The example below
assumes that the header files are F<interface_simple.h> and
I<interface_hairy.h>, and you want the perl module be named as
C<Ext::Ension>. If you need some preprocessor directives and/or