Hola What is the preferred way of allowing a driver to use either DBI::PurePerl or DBI?
Module::Build does not support alternative requirements (one-or-the-other), but it does allow: ================================= requires => { 'DBI::PurePerl' => 0.0, }, recommends => { 'DBI' => 0.0, }, ================================= In practice this results in circa 70% of smoke testers running the module with DBI installed. The remaining 30% however, fails with this error: ================================= # Failed test 'use DBI;' # at t/00-load.t line 4. # Tried to use 'DBI'. # Error: Can't locate DBI.pm in @INC (@INC contains: [...snip...]) at (eval 4) line 2. # BEGIN failed--compilation aborted at (eval 4) line 2. ================================= I could easily change the "use DBI" line into a conditional "require DBI::PurePerl" during BEGIN, but this does not fix the root of the problem, namely that the PurePerl version of DBI never gets installed. Being able to install DBI::PurePerl is unfortunately kind of critical to being able to use it in any way whatsoever.. Any good ideas?