*** ./src/main.c.ORIG	Mon Oct  9 19:00:02 2017
--- ./src/main.c	Mon Oct  9 18:59:40 2017
***************
*** 439,444 ****
--- 439,450 ----
  
  static const char *shortopts = "hvVlW:H:r:x:S:M:L:R:T:B:A:P:t:u:c23epsgb:d:C:z:G:nqa:O:o:k:i";
  
+ #if defined(_AIX) && !defined(_AIX52)
+ double round(double x){
+   return (x >= 0) ? floor(x+0.5) : ceil(x-0.5);
+   }
+ #endif
+ 
  static void dopts(int ac, char *av[]) {
    int c;
    char *p;