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=head2 Limited support for Perl 5.6

Perl 5.6 predates PerlIO.  UTF-8 data may not be captured correctly.

=head1 ENVIRONMENT

=head2 PERL_CAPTURE_TINY_TIMEOUT

Capture::Tiny uses subprocesses for C<<< tee >>>.  By default, Capture::Tiny will
timeout with an error if the subprocesses are not ready to receive data within
30 seconds (or whatever is the value of C<<< $Capture::Tiny::TIMEOUT >>>).  An
alternate timeout may be specified by setting the C<<< PERL_CAPTURE_TINY_TIMEOUT >>>
environment variable.  Setting it to zero will disable timeouts.

=head1 SEE ALSO

This module was, inspired by L<IO::CaptureOutput>, which provides
similar functionality without the ability to tee output and with more
complicated code and API.  L<IO::CaptureOutput> does not handle layers
or most of the unusual cases described in the L</Limitations> section and
I no longer recommend it.

There are many other CPAN modules that provide some sort of output capture,
albeit with various limitations that make them appropriate only in particular
circumstances.  I'm probably missing some.  The long list is provided to show
why I felt Capture::Tiny was necessary.

=over

=item *