ext/IPC-Open2/lib/IPC/Open2.pm Open a two-ended pipe
ext/IPC-Open2/t/IPC-Open2.t See if IPC::Open2 works
ext/IPC-Open3/lib/IPC/Open3.pm Open a three-ended pipe
+ext/IPC-Open3/t/fd.t See if IPC::Open3 works w/ file descriptors
ext/IPC-Open3/t/IPC-Open3.t See if IPC::Open3 works
ext/mro/Changes mro extension
ext/mro/mro.pm mro extension