! SAXS restraint parameters
      integer nsaxs,saxs_mode
      double precision Psaxs(maxsaxs),distsaxs(maxsaxs),
     &  CSAXS(3,maxsaxs),scal_rad,wsaxs0,saxs_cutoff
      common /saxsretr/ Psaxs,distsaxs,csaxs,Wsaxs0,scal_rad,
     &  saxs_cutoff,nsaxs,saxs_mode