[MacPorts] #48145: castxml: add variants for different versions of clang toolchain, use corresponding toolchain for compilation

[MacPorts]

#48145: castxml: add variants for different versions of clang toolchain, use
corresponding toolchain for compilation
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  Reporter:  mmoll@…  |      Owner:  stromnov@…
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.3.3
Resolution:           |   Keywords:  haspatch
      Port:  castxml  |
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Comment (by stromnov@…):

 AFAIK, CastXML can be compiled with any compatible compiler (GCC/XCode
 Clang/Clang), but must be linked with full stack LLVM/Clang (we have only
 two compatible versions in macports tree: 3.6 and 3.7).

 LLVM/Clang in MacPorts generally compiled via XCode, so, as far as I
 understant, it is far more safe (in terms of ABI) to compile CastXML using
 the same compiler toolchain.

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Ticket URL: <https://trac.macports.org/ticket/48145#comment:1>
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