Use +mpi explicitly

CodeGat · CodeGat · commit db9219600a9a · 2026-02-25T09:36:13.000+11:00
diff --git a/spack.yaml b/spack.yaml
@@ -15,6 +15,7 @@ spack:
     ancoms-roms:
       require:
       - '@4.2'
+      - '+mpi'
       - roms_application='upwelling'
     openmpi:
       require:
