! common /cntrl/
integer :: modecalc,iscode,indpdb,indback,indphi,iranconf,&
icheckgrad,iprint,i2ndstr,mucadyn,constr_dist,symetr,shield_mode,&
- tubemode,genconstr,afmlog,selfguide,scelemode,tor_mode
+ tubemode,genconstr,afmlog,selfguide,scelemode,tor_mode,oldion
logical :: minim,refstr,pdbref,overlapsc,&
energy_dec,sideadd,lsecondary,read_cart,unres_pdb,&
vdisulf,searchsc,lmuca,dccart,extconf,out1file,&