ExtUtils::testlib(3)

NAME
     ExtUtils::testlib - add blib/* directories to @INC

SYNOPSIS
     use ExtUtils::testlib;

DESCRIPTION
     After an extension has been built and before it is installed it may be
     desirable to test it bypassing make test. By adding

         use ExtUtils::testlib;

     to a test program the intermediate directories used by make are added to
     @INC.