[MacPorts] #74042: grass, qgis3: after update to grass 8.5, the GRASS algorithms are no longer available in qgis3

MacPorts noreply at macports.org
Wed May 27 22:26:24 UTC 2026


#74042: grass, qgis3: after update to grass 8.5, the GRASS algorithms are no longer
available in qgis3
---------------------------+----------------------
  Reporter:  news24lor     |      Owner:  nilason
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  qgis3, grass  |
---------------------------+----------------------

Comment (by news24lor):

 I tested the official versions of QGIS and GRASS.

 I downloaded and installed QGIS 4 and QGIS 3 from the [https://qgis.org
 QGIS] website, and GRASS 8.4 and GRASS 8.5 from the
 [https://grass.osgeo.org GRASS] website.

 In QGIS 3 and QGIS 4, under Settings → Options → System, I added two
 variables for GRASS in the Environment section.

 To use GRASS 8.4, I entered:

 {{{
 GISBASE      /Applications/GRASS-8.4.app/Contents/Resources
 GRASS_PYTHON
 /Applications/GRASS-8.4.app/Contents/Resources/python.app/Contents/MacOS/python
 }}}

 To use GRASS 8.5, I entered:

 {{{
 GISBASE      /Applications/GRASS-8.5.app/Contents/Resources
 GRASS_PYTHON
 /Applications/GRASS-8.5.app/Contents/Resources/python.app/Contents/MacOS/python

 }}}

 Both QGIS 3 and QGIS 4 work well with GRASS 8.4.

 Neither QGIS 3 nor QGIS 4 works with GRASS 8.5.

 There may be some issues

-- 
Ticket URL: <https://trac.macports.org/ticket/74042#comment:2>
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