diff --git a/NetDiag/QNNPing.m b/NetDiag/QNNPing.m
index beda0eb..d779628 100644
--- a/NetDiag/QNNPing.m
+++ b/NetDiag/QNNPing.m
@@ -90,17 +90,17 @@ - (instancetype)init:(NSInteger)code
 };
 typedef struct IPHeader IPHeader;
 
-check_compile_time(sizeof(IPHeader) == 20);
-check_compile_time(offsetof(IPHeader, versionAndHeaderLength) == 0);
-check_compile_time(offsetof(IPHeader, differentiatedServices) == 1);
-check_compile_time(offsetof(IPHeader, totalLength) == 2);
-check_compile_time(offsetof(IPHeader, identification) == 4);
-check_compile_time(offsetof(IPHeader, flagsAndFragmentOffset) == 6);
-check_compile_time(offsetof(IPHeader, timeToLive) == 8);
-check_compile_time(offsetof(IPHeader, protocol) == 9);
-check_compile_time(offsetof(IPHeader, headerChecksum) == 10);
-check_compile_time(offsetof(IPHeader, sourceAddress) == 12);
-check_compile_time(offsetof(IPHeader, destinationAddress) == 16);
+__Check_Compile_Time(sizeof(IPHeader) == 20);
+__Check_Compile_Time(offsetof(IPHeader, versionAndHeaderLength) == 0);
+__Check_Compile_Time(offsetof(IPHeader, differentiatedServices) == 1);
+__Check_Compile_Time(offsetof(IPHeader, totalLength) == 2);
+__Check_Compile_Time(offsetof(IPHeader, identification) == 4);
+__Check_Compile_Time(offsetof(IPHeader, flagsAndFragmentOffset) == 6);
+__Check_Compile_Time(offsetof(IPHeader, timeToLive) == 8);
+__Check_Compile_Time(offsetof(IPHeader, protocol) == 9);
+__Check_Compile_Time(offsetof(IPHeader, headerChecksum) == 10);
+__Check_Compile_Time(offsetof(IPHeader, sourceAddress) == 12);
+__Check_Compile_Time(offsetof(IPHeader, destinationAddress) == 16);
 
 typedef struct ICMPPacket {
     uint8_t type;
@@ -116,12 +116,12 @@ - (instancetype)init:(NSInteger)code
     kQNNICMPTypeEchoRequest = 8
 };
 
-check_compile_time(sizeof(ICMPPacket) == 8);
-check_compile_time(offsetof(ICMPPacket, type) == 0);
-check_compile_time(offsetof(ICMPPacket, code) == 1);
-check_compile_time(offsetof(ICMPPacket, checksum) == 2);
-check_compile_time(offsetof(ICMPPacket, identifier) == 4);
-check_compile_time(offsetof(ICMPPacket, sequenceNumber) == 6);
+__Check_Compile_Time(sizeof(ICMPPacket) == 8);
+__Check_Compile_Time(offsetof(ICMPPacket, type) == 0);
+__Check_Compile_Time(offsetof(ICMPPacket, code) == 1);
+__Check_Compile_Time(offsetof(ICMPPacket, checksum) == 2);
+__Check_Compile_Time(offsetof(ICMPPacket, identifier) == 4);
+__Check_Compile_Time(offsetof(ICMPPacket, sequenceNumber) == 6);
 
 const int kQNNPacketSize = sizeof(ICMPPacket) + 100;
 
diff --git a/NetDiag/QNNTraceRoute.m b/NetDiag/QNNTraceRoute.m
index 591e6d1..ea2f453 100644
--- a/NetDiag/QNNTraceRoute.m
+++ b/NetDiag/QNNTraceRoute.m
@@ -15,6 +15,9 @@
 #import <netinet/in.h>
 #import <netinet/tcp.h>
 
+#import <sys/select.h>
+#import <sys/time.h>
+
 #import "QNNQue.h"
 #import "QNNTraceRoute.h"