The Include module implements a method of using #define constants from C header
files. It does this by putting an extra level of indirection on the use
operator.  To enhance performance a cache scheme is used. When a new module is
required the cache is checked first, if the package is not found then it will be
generated from the C header files.  Include can be configured to place any
generated packages into the cache automatically, for security reasons this is
turned off by default.

WWW: http://search.cpan.org/dist/Include