p4raw-id: //depot/cfgperl@6252
specifications are being processed and what is actually being imported
into modules.
+=head2 Constants can be inlined
+
+AUTOLOADed constants can be inlined by prefixing them with a C<+>:
+
+ use Socket qw(+AF_INET);
+
+Thusly prefixed constants are defined during the symbol import phase of
+compilation, which means that by runtime they are true inlined constants.
+
=head2 Exporting without using Export's import method
Exporter has a special method, 'export_to_level' which is used in situations
in the parameter slot so it can be overwritten in the caller, or
an exception will be raised.
+The filehandles may also be integers, in which case they are understood
+as file descriptors.
+
open3() returns the process ID of the child process. It doesn't return on
failure: it just raises an exception matching C</^open3:/>. However,
C<exec> failures in the child are not detected. You'll have to