Compile rtc_base_objc and rtc_api_objc for Mac

webrtc/base/macutils.cc

Index: webrtc/base/macutils.cc
diff --git a/webrtc/base/macutils.cc b/webrtc/base/macutils.cc
index 7b1ff4753681acf063126cbca94374d899d68f37..da21608b46eada16afc6e4065bd74e5f8017369d 100644
--- a/webrtc/base/macutils.cc
+++ b/webrtc/base/macutils.cc
@@ -72,7 +72,11 @@ void DecodeFourChar(UInt32 fc, std::string* out) {
 static bool GetGestalt(OSType ostype, int* value) {
   ASSERT(NULL != value);
   SInt32 native_value;
+// TODO(5478): Update deprecated APIs.
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated"
   OSStatus result = Gestalt(ostype, &native_value);
+#pragma clang diagnostic pop
   if (noErr == result) {
     *value = native_value;
     return true;
@@ -85,6 +89,9 @@ static bool GetGestalt(OSType ostype, int* value) {
 
 bool GetOSVersion(int* major, int* minor, int* bugfix) {
   ASSERT(major && minor && bugfix);
+// TODO(5478): Update deprecated APIs.
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated"
   if (!GetGestalt(gestaltSystemVersion, major)) {
     return false;
   }
@@ -97,6 +104,7 @@ bool GetOSVersion(int* major, int* minor, int* bugfix) {
   return GetGestalt(gestaltSystemVersionMajor, major) &&
          GetGestalt(gestaltSystemVersionMinor, minor) &&
          GetGestalt(gestaltSystemVersionBugFix, bugfix);
+#pragma clang diagnostic pop
 }
 
 MacOSVersionName GetOSVersionName() {