option(UNRES_DFA "Choose whether or not to use DFA" OFF )
option(UNRES_5D "Choose whether or not to use HCD-5D" OFF )
option(UNRES_NO5D "Choose the old code" OFF )
+option(UNRES_SUMSLD "Choose SUMSLD (ON) or LBFGS (OFF, default)" OFF )
#=================================
# MPI stuff