[MacPorts] #61250: cdrtools @3.01_0: build failure with Xcode 12 (was: cdrtools @3.01_0: build failure on 10.15.7)

[MacPorts]

#61250: cdrtools @3.01_0: build failure with Xcode 12
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  Reporter:  Xof       |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.3
Resolution:            |   Keywords:
      Port:  cdrtools  |
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Changes (by ryandesign):

 * cc: ryandesign (added)


Comment:

 This is the usual Xcode 12 problem: implicit function declarations are now
 an error where before they were just a warning. This port's configuration
 system has neglected to include a bunch of headers, for example in the
 parts that determine the `sizeof` various types, leading to failing to
 determine all the sizes, leading to not knowing which of them is the
 32-bit size. I'm looking into it to see if I can fix the build.

 Until we figure it out, you can work around the problem by downgrading to
 Xcode 11 and/or the Xcode 11 version of the command line tools.

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Ticket URL: <https://trac.macports.org/ticket/61250#comment:2>
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