fixed: also add dependency with ninja generator

CMakeLists.txt

@@ -556,7 +556,7 @@ foreach(OBJ ${COMMON_MODELS} ${FLOW_MODELS} ${FLOW_VARIANT_MODELS})
   if(TARGET fmt::fmt)
     target_link_libraries(flow_lib${OBJ} fmt::fmt)
   endif()
-  if(TARGET opmcommon AND CMAKE_GENERATOR MATCHES "Makefiles")
+  if(TARGET opmcommon)
       add_dependencies(flow_lib${OBJ} opmcommon)
   endif()
   opm_add_test(flow_${OBJ}