[MacPorts] #61222: ghc @8.10.1: testing fails because the symbol _iconv is not found

[MacPorts]

#61222: ghc @8.10.1: testing fails because the symbol _iconv is not found
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  Reporter:  ryandesign  |      Owner:  essandess
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.3
Resolution:              |   Keywords:
      Port:  ghc         |
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Comment (by ryandesign):

 You [comment:ticket:61219:4 mentioned] that

 > ghc must be bootstrapped from a pre-compiled binary

 and I see that the binary distribution contains libraries/base/dist-
 install/build/libHSbase-4.14.0.0.a, so I now assume that that is the
 library mentioned in the error message. I had originally assumed that it
 was a library that had been built on the user's system. But if it's a
 library distributed from upstream, then it is logical to assume that it
 was built with macOS libiconv, not MacPorts libiconv, and that using that
 library would therefore require that we use macOS libiconv, not MacPorts
 libiconv.

 Again, we need to see the command that the build system is using when it
 is "Linking mk/ghc-config" so that we can see where in the source code it
 is happening so that we can change it. For example, if it is linking with
 libiconv using `-L/opt/local/lib -liconv`, then it needs to be changed to
 `/usr/lib/libiconv.dylib`.

-- 
Ticket URL: <https://trac.macports.org/ticket/61222#comment:3>
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