[Pidgin] #16507: Bonjour SDK not needed for Windows build

[Pidgin]

#16507: Bonjour SDK not needed for Windows build
-------------------------+------------------------------
 Reporter:  renatosilva  |       Owner:  datallah
     Type:  enhancement  |      Status:  new
Milestone:               |   Component:  winpidgin (gtk)
  Version:  2.10.11      |  Resolution:
 Keywords:               |
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Description changed by renatosilva:

Old description:

> Pidgin for Windows only requires the `dns_sd.h` header from Bonjour SDK
> in order to enable support for this protocol. There is a `dnssd.lib`
> binary which is used only when `LINK_DNS_SD_DIRECTLY` is specified,
> however this requires redistribution of the sources.
>
> That header seems to be licensed under 3-clause BSD, meaning it could be
> merged into the code base and eliminate the dependency on the Bonjour
> SDK, which requires registration with Apple in order to be downloaded and
> is one of the steps [[https://launchpad.net/pidgin-windev|Pidgin Windev]]
> for example cannot automate.

New description:

 Pidgin for Windows only requires the `dns_sd.h` header from Bonjour SDK in
 order to enable support for this protocol. There is a `dnssd.lib` binary
 which is used only when `LINK_DNS_SD_DIRECTLY` is specified, however this
 requires redistribution of the sources. The end user is the one
 responsible for providing `dnssd.dll`.

 That header seems to be licensed under 3-clause BSD, meaning it could be
 merged into the code base and eliminate the dependency on the Bonjour SDK,
 which requires registration with Apple in order to be downloaded and is
 one of the steps [[https://launchpad.net/pidgin-windev|Pidgin Windev]] for
 example cannot automate.

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Ticket URL: <https://developer.pidgin.im/ticket/16507#comment:1>
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