[MacPorts] #69213: openjdk21 @21.0.2_1: opportunistically attempts to use diffutils

[MacPorts]

#69213: openjdk21 @21.0.2_1: opportunistically attempts to use diffutils
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  Reporter:  cooljeanius  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.9.0
Resolution:               |   Keywords:
      Port:  openjdk21    |
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Comment (by cooljeanius):

 Replying to [comment:7 breun]:
 > Replying to [comment:6 cooljeanius]:
 > > Replying to [comment:1 jmroot]:
 > > > But it succeeds without trace mode and without diffutils installed?
 > >
 > > No, without trace mode, it runs into a different build error, which
 looked like it would have required further investigation, and probably
 would have been more difficult to figure out what exactly the issue was,
 so I thought I could just work around it by trying trace mode instead.
 >
 > https://wiki.openjdk.org/display/Build/Supported+Build+Platforms doesn't
 provide very concrete minimum build OS requirements, but according to
 https://ports.macports.org/port/openjdk21/details/ `openjdk21` builds fine
 on 10.14 Mojave and later. I don't know if that is expected or not, but
 maybe this port should be restricted to 10.14+.
 >
 > If you're on 10.14+, could you create a ticket for that build error? I
 could be interesting to see that one. If you're on 10.13 or older, I don't
 know if the port can be made to build on that.

 I'm on Big Sur; the build error looks a lot like the one from #66325

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Ticket URL: <https://trac.macports.org/ticket/69213#comment:8>
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