[MacPorts] #69691: Include dzsave support

[MacPorts]

#69691: Include dzsave support
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 Reporter:  joostdekeijzer  |      Owner:  (none)
     Type:  enhancement     |     Status:  new
 Priority:  Normal          |  Milestone:
Component:  ports           |    Version:
 Keywords:                  |       Port:  vips
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 The current vips port does not support know the dzsave action.

 I did a little test and it seems just adding libarchive as a depencency to
 the Portfile will do the trick?

 PS.
 I also added `configure.cflags-append -Wno-incompatible-function-pointer-
 types` to my test Portfile to make it compile but I think that has been
 fixed upstream?

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Ticket URL: <https://trac.macports.org/ticket/69691>
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