Fix haxpor#14

- according to what @happyfire has found and pushed effort in fixing,
  and let us knew in discussion. The fixed went along with that route.

PacketProcessor/tun2socks-iOS/system/BTime.c

@@ -41,7 +41,7 @@ struct _BTime_global btime_global = {
 #include <mach/clock.h>
 #include <mach/mach.h>
 
-/*int clock_gettime(int clk_id, struct timespec* t)
+int clock_gettime_ex(int clk_id, struct timespec* t)
 {
     clock_serv_t cclock;
     mach_timespec_t mts;
@@ -51,5 +51,5 @@ struct _BTime_global btime_global = {
     t->tv_sec = mts.tv_sec;
     t->tv_nsec = mts.tv_nsec;
     return 0;
-}*/
+}
 #endif

PacketProcessor/tun2socks-iOS/system/BTime.h

@@ -71,7 +71,7 @@ struct _BTime_global {
 
 #ifdef __MACH__
 #define CLOCK_MONOTONIC 1
-//int clock_gettime(int clk_id, struct timespec* t);
+int clock_gettime_ex(int clk_id, struct timespec* t);
 #endif
 
 extern struct _BTime_global btime_global;
@@ -91,7 +91,7 @@ static void BTime_Init (void)
     #else
 
     struct timespec ts;
-    if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) {
+    if (clock_gettime_ex(CLOCK_MONOTONIC, &ts) < 0) {
         BLog(BLOG_WARNING, "CLOCK_MONOTONIC is not available. Timers will be confused by clock changes.");
 
         struct timeval tv;

README.md

@@ -46,6 +46,10 @@ Be warned that you **should not** call `pod update` as newer version of pod fram
 3. `carthage update` to pull down dependencies into `Carthage/Checkouts` folder and build each one
 4. Open `Potatso.xcworkspace` then Build and Run the project. Done.
 
+## Build Notices
+
+If you try to build for iOS 10.3, please try to use XCode Version 8.3 (8E162) onwards and only for release version.
+
 ## Code Notices
 
 There're a couple of issues that needed to look at, but at tested, it doen **not** effect the functionality of the app.