Who is "it" in "its"

[C. Michael Pilato]

On Tue, Aug 13, 2019 at 10:45 AM wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn>
wrote:

> Hi,
>
> I'm reading the appendix A of svnbook, one sentence says:
>
> > While Subversion is able to use Apache HTTP Server (or, httpd) as one of
> > its network server programs, its dependence on APR does not mean that
>                                ^^^
> > httpd is a required component.
>
> I'm just a little confused about "it" in "its", who is "it"? httpd or
> Subversion?
>

It == Subversion in this context.
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