[bug#57675] [PATCH v11 7/8] gnu: telegram-desktop: Update to 4.2.0.

[Hilton Chain via Guix-patches via <guix-patches@gnu.org>]

On Sat, 24 Sep 2022 15:58:33 +0800,
Liliana Marie Prikler wrote:
> Please introduce this in an earlier commit.  Also, since this is a
> third-party package, not a telegram-owned one, it'd be nice if we could
> use upstream versioning, but that seems tied to another package too
> (swift in particular).  Alternatively, you could simply use "1.3" as
> per CMakeLists as a base point.

I'd tried packaging both crc32c and libdispatch, are those two names suitable? And then, what's the
proper place to place libdispatch in?

Applied Gentoo's patch (for unbundling crc32c) to webrtc-for-telegram-desktop, however when
configuring telegram-desktop with this, it errors out as follows, what should I do next?

#+BEGIN_QUOTE
CMake Error at Telegram/CMakeLists.txt:7 (add_executable):
  Target "Telegram" links to target "Crc32c::crc32c" but the target was not
  found.  Perhaps a find_package() call is missing for an IMPORTED target, or
  an ALIAS target is missing?


CMake Error at Telegram/cmake/lib_tgcalls.cmake:7 (add_library):
  Target "lib_tgcalls" links to target "Crc32c::crc32c" but the target was
  not found.  Perhaps a find_package() call is missing for an IMPORTED
  target, or an ALIAS target is missing?
Call Stack (most recent call first):
  Telegram/CMakeLists.txt:34 (include)


CMake Error at Telegram/cmake/td_ui.cmake:7 (add_library):
  Target "td_ui" links to target "Crc32c::crc32c" but the target was not
  found.  Perhaps a find_package() call is missing for an IMPORTED target, or
  an ALIAS target is missing?
Call Stack (most recent call first):
  Telegram/CMakeLists.txt:39 (include)
#+END_QUOTE

Thanks