text: #ifndef DSLASH_KS_REDEFINE_H
  #define DSLASH_KS_REDEFINE_H
  
  /* For Kogut Susskind fermions.
     Normally the generic dslash_site invokes the unimproved KS Dslash.
  
     Here we map the generic dslash macros to a specific FN or EO
     version for improved actions. */
  
  #ifdef FN
  #define dslash_site dslash_fn_site
  #define dslash_field dslash_fn_field
  #endif
  #ifdef EO
  #define dslash_site dslash_eo_site
  #define dslash_field dslash_eo_field
  #endif
  
  #endif
  