[lib] Add foamgrid library as module library

CMakeLists.txt

@@ -17,8 +17,7 @@ include(DuneMacros)
 
 # start a dune project with information from dune.module
 dune_project()
-dune_add_library(dunefoamgrid)
-list(APPEND DUNE_LIBS dunefoamgrid)
+dune_enable_all_packages(MODULE_LIBRARIES dunefoamgrid)
 
 add_subdirectory(dune)
 add_subdirectory(doc)

dune/foamgrid/foamgrid/CMakeLists.txt

@@ -3,4 +3,4 @@ file(GLOB DUNE_FOAMGRID_HEADERS *.hh)
 install(FILES ${DUNE_FOAMGRID_HEADERS}
         DESTINATION include/dune/foamgrid/foamgrid)
 
-target_sources(dunefoamgrid PRIVATE foamgrid.cc)
+dune_library_add_sources(dunefoamgrid SOURCES foamgrid.cc)