integer nres,nres0,nsup,nstart_sup,nend_sup,nstart_seq,ishift_pdb,
     & lim_odl, lim_dih,link_start_homo,link_end_homo,
     & idihconstr_start_homo,idihconstr_end_homo
      double precision c,cref,dc,xloc,xrot,dc_norm,t,r,prod,rt

      real*8 odl(max_template,maxdim),sigma_odl(max_template,maxdim),
     &    dih(max_template,maxres),sigma_dih(max_template,maxres)
      integer ires_homo(maxdim),jres_homo(maxdim)
      common /chain/ c(3,maxres2+2),dc(3,maxres2),xloc(3,maxres),
     & xrot(3,maxres),dc_norm(3,maxres2),nres,nres0
      common /rotmat/ t(3,3,maxres),r(3,3,maxres),prod(3,3,maxres),
     &                rt(3,3,maxres) 
      common /refstruct/ cref(3,maxres2+2),nsup,nstart_sup,nend_sup,
     &                nstart_seq,ishift_pdb
       common /homrestr/ odl,dih,sigma_dih,sigma_odl,
     & lim_odl,lim_dih,ires_homo,jres_homo,link_start_homo,
     & link_end_homo,idihconstr_start_homo,idihconstr_end_homo