[MacPorts] #54216: zlib +ng (and +cloudflare) accelerated variants

[MacPorts]

#54216: zlib +ng (and +cloudflare) accelerated variants
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  Reporter:  RJVB         |      Owner:  ryandesign
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  zlib         |
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Comment (by raimue):

 These variants look like complete rewrites of the port and that makes it
 look very unmaintainable. Are these ports API/ABI compatible? I think we
 should rather go to with new ports and replace `port:zlib` with
 `path:lib/libz.dylib:zlib` or similar in depspecs. I also see no point in
 adding the benchmark results to the Portfile.

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Ticket URL: <https://trac.macports.org/ticket/54216#comment:3>
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