1: #ifndef KNR_COMPAT_H
  2: #define KNR_COMPAT_H 1

  4: /* ALWAYS use prototypes */
  5: #define USE_PROTOTYPES 1
  6: #define USE_FN_ARGS 1

  8: #ifdef USE_PROTOTYPES
  9: #define Proto(x) x
 10: #else
 11: #define Proto(x) ()
 12: #endif

 14: #ifdef USE_FN_ARGS

 16: #define ARG0(x) (void)
 17: #define ARG1(type1,var1) (type1 var1)
 18: #define ARG2(type1,var1,type2,var2) (type1 var1,type2 var2)
 19: #define ARG3(type1,var1,type2,var2,type3,var3) (type1 var1,type2 var2,type3 var3)
 20: #define ARG4(type1,var1,type2,var2,type3,var3,type4,var4) (type1 var1,type2 var2,type3 var3,type4 var4)
 21: #define ARG5(type1,var1,type2,var2,type3,var3,type4,var4,type5,var5) (type1 var1,type2 var2,type3 var3,type4 var4,type5 var5)

 23: #else /* Use K&R style */

 25: #define ARG0(x) ()
 26: #define ARG1(type1,var1) (var1) type1 var1; 
 27: #define ARG2(type1,var1,type2,var2) (var1,var2) type1 var1; type2 var2; 
 28: #define ARG3(type1,var1,type2,var2,type3,var3) (var1,var2,var3) type1 var1; type2 var2; type3 var3; 
 29: #define ARG4(type1,var1,type2,var2,type3,var3,type4,var4) (var1,var2,var3,var4) type1 var1; type2 var2; type3 var3; type4 var4; 
 30: #define ARG5(type1,var1,type2,var2,type3,var3,type4,var4,type5,var5) (var1,var2,var3,var4,var5) type1 var1; type2 var2; type3 var3; type4 var4; type5 var5; 
 31: #endif /* K&R Decls */

 33: #endif /* KNR_COMPAT_H */