[MacPorts] #60656: lcms2 +universal: build error

[MacPorts]

#60656: lcms2 +universal: build error
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  Reporter:  JohnFHall  |      Owner:  kencu
      Type:  defect     |     Status:  reopened
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:
      Port:  lcms2      |
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Comment (by BenceSzalai):

 Please note that the fix depends on `[vercmp ${xcodeversion} 10.0] >= 0`,
 but it did not help in my case. I guess it was because I'm using Xcode
 Command Line Tools instead of the full blown Xcode to compile ports.
 Probably another check should be added, which checks the version of the
 xCode CLI Tools, because `${xcodeversion}` is not set on my system.

 As a workaround I've just removed that condition from my local portfile
 which got me `lcms2 +universal` building finally. Unfortunately I'm not
 sure what is the replacement for `${xcodeversion}` when only Command Line
 Tools are installed.

 Looking back now probably a better workaround could have been just to make
 sure I have `${xcodeversion}` set, but since during the troubleshooting
 I've set up a local Portfile for `lcms2`, it was easier for me just to
 remove the part checking that.

 Anyway, If you know how to check CLI Tools version as well, the condition
 could be extended in the fix. If not, that's fine as well; I'm leaving
 this note here for others facing the same problem, so they don't have to
 spend hours like I did...

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Ticket URL: <https://trac.macports.org/ticket/60656#comment:10>
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