try this

Author: marchdf

.github/workflows/ci.yml

@@ -170,6 +170,7 @@ jobs:
           -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
           -DMARBLES_DIM:STRING=${{matrix.spacedim}} \
           -DMARBLES_ENABLE_MPI:BOOL=ON \
+          -DMARBLES_TEST_WITH_FCOMPARE:BOOL=OFF \
           -DCMAKE_CXX_COMPILER_LAUNCHER:STRING=ccache \
           ${{github.workspace}}
       - name: Build