[MacPorts] #69500: graphviz-9.0.0_0 not building on Sonoma arm64

[MacPorts]

#69500: graphviz-9.0.0_0 not building on Sonoma arm64
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 Reporter:  arielp  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.9.1
 Keywords:          |       Port:
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 running `port install john-jumbo` things chug along until eventually
 trying to build graphviz.

 On`Darwin aDesktop.localdomain 23.4.0 Darwin Kernel Version 23.4.0: Wed
 Feb 21 21:44:43 PST 2024; root:xnu-10063.101.15~2/RELEASE_ARM64_T6000
 arm64`

 Xcode is 15.3 and updated Xcode command line tools are installed.

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Ticket URL: <https://trac.macports.org/ticket/69500>
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