Fixes for OS X.

src/Cpu_mac.cpp

@@ -42,18 +42,4 @@ void Cpu::init()
 
 void Cpu::setAffinity(int id, unsigned long mask)
 {
-    cpu_set_t set;
-    CPU_ZERO(&set);
-
-    for (int i = 0; i < m_totalThreads; i++) {
-        if (mask & (1UL << i)) {
-            CPU_SET(i, &set);
-        }
-    }
-
-    if (id == -1) {
-        sched_setaffinity(0, sizeof(&set), &set);
-    } else {
-        pthread_setaffinity_np(pthread_self(), sizeof(&set), &set);
-    }
 }

src/Cpu_unix.cpp

@@ -42,6 +42,10 @@ void Cpu::init()
 
 void Cpu::setAffinity(int id, unsigned long mask)
 {
+    if (id == -1) {
+        return;
+    }
+    
     cpu_set_t set;
     CPU_ZERO(&set);
 

src/net/Network_mac.cpp

@@ -24,7 +24,6 @@
 
 #include <stdlib.h>
 
-
 #include "net/Network.h"
 #include "version.h"
 
@@ -34,7 +33,7 @@ char *Network::userAgent()
     const size_t max = 128;
 
     char *buf = static_cast<char*>(malloc(max));
-    snprintf(buf, max, "%s/%s", APP_NAME, APP_VERSION);
+    snprintf(buf, max, "%s/%s (Macintosh; Intel Mac OS X) libuv/%s clang/%d.%d.%d", APP_NAME, APP_VERSION, uv_version_string(), __clang_major__, __clang_minor__, __clang_patchlevel__);
 
     return buf;
 }