===== start of error message from Alien ======

Base class package "Module::Build" is empty.
    (Perhaps you need to 'use' the module which defines that package first.)
 at inc/My/Build.pm line 4
BEGIN failed--compilation aborted at inc/My/Build.pm line 4.
Compilation failed in require at Build.PL line 7.
BEGIN failed--compilation aborted at Build.PL line 7.

====== end of error message ======