[MacPorts] #43678: ECW support in gdal

[MacPorts]

#43678: ECW support in gdal
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 Reporter:  jsm@…        |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.2.1
 Keywords:               |       Port:  gdal
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 I have modified the gdal port to allow the use of the ECW SDK of
 Intergraph. A new variant called `ecw` is added. The version of gdal was
 also updated to 1.11.0. The patches `patch-gdalwarpkernel_opencl_c_2.diff`
 and `patch-port-cpl_spawn.cpp.diff` are not needed any more.

 The upstream version of gdal supports the SDK 5.1 which is located at
 `/Intergraph/ERDASEcwJpeg2000SDK5.1`. The new version of the SDK, 5.1.1,
 is located at `/Intergraph/ERDASEcwJpeg2000SDK5.1.1/Desktop_Read-Only` and
 a couple of symbolic links can be used to override the problem with the
 paths. If this version of the SDK is present and the links are not
 created, the port install process displays a message of how to do that
 (only if the variant `ecw`is set). This is probably not an ideal solution
 but it works.

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Ticket URL: <https://trac.macports.org/ticket/43678>
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