[MacPorts] #70257: isl, isl-devel are not substitutes: gcc* ports, perhaps, need explicit variants instead of path-style dependency

[MacPorts]

#70257: isl, isl-devel are not substitutes: gcc* ports, perhaps, need explicit
variants instead of path-style dependency
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  Reporter:  barracuda156                         |      Owner:  (none)
      Type:  defect                               |     Status:  new
  Priority:  Normal                               |  Milestone:
 Component:  ports                                |    Version:  2.9.3
Resolution:                                       |   Keywords:
      Port:  gcc13, gcc12, gcc11, isl, isl-devel  |
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Comment (by ryandesign):

 Replying to [ticket:70257 barracuda156]:
 > if you build libgcc against `isl-devel` and then activate `isl` instead,
 the port is broken, since `libisl` version does not match.

 That is normal for any -devel port; don't do that.

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Ticket URL: <https://trac.macports.org/ticket/70257#comment:1>
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