[MacPorts] #64103: Aseprite @1.2.30: fatal error: 'blake2.h' file not found

[MacPorts]

#64103: Aseprite @1.2.30: fatal error: 'blake2.h' file not found
--------------------------+----------------------------
  Reporter:  kevinfaveri  |      Owner:  ryandesign
      Type:  defect       |     Status:  accepted
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  monterey arm64
      Port:  Aseprite     |
--------------------------+----------------------------

Comment (by ryandesign):

 I couldn't initially understand how the build was looking in /opt/homebrew
 since I could not find that path anywhere in the Aseprite source. Turns
 out it's a cmake feature which we should probably disable. That would
 prevent similar problems from occurring with other ports and libraries in
 the future. I filed #64111 for that.

 The opportunistic use of libb2 is something that affects our libarchive
 port too. I filed #64109 for that.

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Ticket URL: <https://trac.macports.org/ticket/64103#comment:4>
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