Hello I am trying to build on bluesky at NCAR. There are several sp4 option files available in build_options. Is there one in particular I should be using? sp4+mpi seems most relevant, but has LIBS='-L/usr/local/apps/mass -lmass'. I cannot find /usr/local/apps/mass on bluesky. (What does -lmass contain anyway?) Thanks, Samar