iphlpapi: Fix check for icmpstat.icps_outhist.

dlls/iphlpapi/ipstats.c

@@ -522,7 +522,7 @@ DWORD WINAPI GetIcmpStatistics(PMIB_ICMP stats)
             stats->stats.icmpInStats.dwAddrMasks = icmp_stat.icps_inhist[ICMP_MASKREQ];
             stats->stats.icmpInStats.dwAddrMaskReps = icmp_stat.icps_inhist[ICMP_MASKREPLY];
 
-#ifdef HAVE_ICPS_OUTHIST
+#ifdef HAVE_STRUCT_ICMPSTAT_ICPS_OUTHIST
             /* out stats */
             stats->stats.icmpOutStats.dwMsgs = icmp_stat.icps_oldshort + icmp_stat.icps_oldicmp;
             for(i = 0; i <= ICMP_MAXTYPE; i++)
@@ -541,7 +541,7 @@ DWORD WINAPI GetIcmpStatistics(PMIB_ICMP stats)
             stats->stats.icmpOutStats.dwTimestampReps = icmp_stat.icps_outhist[ICMP_TSTAMPREPLY];
             stats->stats.icmpOutStats.dwAddrMasks = icmp_stat.icps_outhist[ICMP_MASKREQ];
             stats->stats.icmpOutStats.dwAddrMaskReps = icmp_stat.icps_outhist[ICMP_MASKREPLY];
-#endif /* ICPS_OUTHIST */
+#endif /* HAVE_STRUCT_ICMPSTAT_ICPS_OUTHIST */
             ret = NO_ERROR;
         }
     }