Force to use LLVM build of OpenMP.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>

.gitlab-ci.yml

@@ -56,7 +56,7 @@ test_sensormapgeo_install:
 
     # resolve some requirements with conda
     # - conda config --set channel_priority strict  # otherwise gdal or libgdal may be installed from defaults channel
-    - conda install --yes -q -c conda-forge numpy gdal pyresample pyqt scikit-image pyproj lxml geopandas ipython
+    - conda install --yes -q -c conda-forge numpy gdal pyresample pyqt scikit-image pyproj lxml geopandas ipython _openmp_mutex=*=*llvm*
 
     # run installer
     - python setup.py install

tests/CI_docker/context/environment_sensormapgeo.yml

@@ -9,6 +9,7 @@ dependencies:
   - numpy
   - gdal
   - pyresample>=1.11.0
+  - _openmp_mutex=*=*llvm* [Unix]  # fixes a deadlock (https://gitext.gfz-potsdam.de/EnMAP/sensormapgeo/-/issues/6)
   - pyproj>=2.2
 
   # py_tools_ds