Default to C++11. Updates options list to match Xcode 10.2.1 and Xcode 11 settings.
Note that new Xcode projects default to C++14.

PiperOrigin-RevId: 258648060
diff --git a/src/TulsiGenerator/TulsiOptionSet.swift b/src/TulsiGenerator/TulsiOptionSet.swift
index fa65e68..bc78914 100644
--- a/src/TulsiGenerator/TulsiOptionSet.swift
+++ b/src/TulsiGenerator/TulsiOptionSet.swift
@@ -338,9 +338,10 @@
     addStringOption(.CommandlineArguments, [.TargetSpecializable, .SupportsInheritKeyword])
     addStringOption(.EnvironmentVariables, [.TargetSpecializable, .SupportsInheritKeyword])
 
-    // List matches the available options for the 'C++ Language Dialect' setting in XCode 9.2.
-    let cppLanguageStandards = ["compiler-default", "c++98", "gnu++98", "c++0x", "gnu++0x", "c++14", "gnu++14", "c++17", "gnu++17"]
-    addStringEnumOption(.CLANG_CXX_LANGUAGE_STANDARD, .BuildSetting, "compiler-default",  cppLanguageStandards)
+    // List matches the available options for the 'C++ Language Dialect' setting in XCode 10.2.1 and 11.
+    // Currently compiler default is equivalent to GNU++98 (Xcode 10.2.1 and 11)
+    let cppLanguageStandards = ["compiler-default", "c++98", "gnu++98", "c++11", "gnu++11", "c++14", "gnu++14", "c++17", "gnu++17"]
+    addStringEnumOption(.CLANG_CXX_LANGUAGE_STANDARD, .BuildSetting, "c++11",  cppLanguageStandards)
 
     addStringOption(.PreBuildPhaseRunScript, [.TargetSpecializable])
     addStringOption(.PostBuildPhaseRunScript, [.TargetSpecializable])
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.pbxproj
index 550b138..f642920 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/ComplexSingleProject.xcodeproj/project.pbxproj
@@ -965,7 +965,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -1069,7 +1069,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -1251,7 +1251,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -1448,7 +1448,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.pbxproj
index b95dee3..c1ebc40 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSProject.xcodeproj/project.pbxproj
@@ -409,7 +409,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -525,7 +525,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -624,7 +624,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -723,7 +723,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.pbxproj
index 49fdec3..6c6a79a 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MacOSTestsProject.xcodeproj/project.pbxproj
@@ -654,7 +654,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -777,7 +777,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -899,7 +899,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -1045,7 +1045,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MultiExtensionProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MultiExtensionProject.xcodeproj/project.pbxproj
index 90581d7..e77ed28 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MultiExtensionProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/MultiExtensionProject.xcodeproj/project.pbxproj
@@ -289,7 +289,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -405,7 +405,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -492,7 +492,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -579,7 +579,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.pbxproj
index ab1accc..81bfadb 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleCCProject.xcodeproj/project.pbxproj
@@ -270,7 +270,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -335,7 +335,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -410,7 +410,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -485,7 +485,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.pbxproj
index 1724ed7..a5ffe77 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SimpleProject.xcodeproj/project.pbxproj
@@ -611,7 +611,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -714,7 +714,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -844,7 +844,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -990,7 +990,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SkylarkBundlingProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SkylarkBundlingProject.xcodeproj/project.pbxproj
index d5d0411..91f1e3c 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SkylarkBundlingProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SkylarkBundlingProject.xcodeproj/project.pbxproj
@@ -303,7 +303,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -394,7 +394,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -477,7 +477,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -560,7 +560,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.pbxproj
index 500d003..e55241a 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/SwiftProject.xcodeproj/project.pbxproj
@@ -345,7 +345,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -412,7 +412,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -508,7 +508,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -604,7 +604,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.pbxproj
index 48c3139..6268c57 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteExplicitXCTestsProject.xcodeproj/project.pbxproj
@@ -720,7 +720,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -864,7 +864,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -1007,7 +1007,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -1182,7 +1182,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.pbxproj
index e600101..3623f9a 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteLocalTaggedTestsProject.xcodeproj/project.pbxproj
@@ -391,7 +391,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -469,7 +469,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -554,7 +554,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -655,7 +655,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.pbxproj
index 3ac0d16..c3606e2 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/TestSuiteRecursiveTestSuiteProject.xcodeproj/project.pbxproj
@@ -619,7 +619,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -737,7 +737,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -862,7 +862,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -1019,7 +1019,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.pbxproj b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.pbxproj
index bf9b342..64a4c03 100644
--- a/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.pbxproj
+++ b/src/TulsiGeneratorIntegrationTests/Resources/GoldenProjects/WatchProject.xcodeproj/project.pbxproj
@@ -430,7 +430,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -546,7 +546,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -657,7 +657,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++11";
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
@@ -768,7 +768,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "compiler-default";
+				;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
diff --git a/src/TulsiGeneratorTests/PBXTargetGeneratorTests.swift b/src/TulsiGeneratorTests/PBXTargetGeneratorTests.swift
index 0a7ab5b..e4b0d39 100644
--- a/src/TulsiGeneratorTests/PBXTargetGeneratorTests.swift
+++ b/src/TulsiGeneratorTests/PBXTargetGeneratorTests.swift
@@ -199,7 +199,7 @@
 
     let topLevelBuildSettings = [
         "ALWAYS_SEARCH_USER_PATHS": "NO",
-        "CLANG_CXX_LANGUAGE_STANDARD": "compiler-default",
+        "CLANG_CXX_LANGUAGE_STANDARD": "c++11",
         "CLANG_ENABLE_OBJC_ARC": "YES",
         "CLANG_WARN_BOOL_CONVERSION": "YES",
         "CLANG_WARN_CONSTANT_CONVERSION": "YES",
@@ -251,7 +251,7 @@
 
     let topLevelBuildSettings = [
         "ALWAYS_SEARCH_USER_PATHS": "NO",
-        "CLANG_CXX_LANGUAGE_STANDARD": "compiler-default",
+        "CLANG_CXX_LANGUAGE_STANDARD": "c++11",
         "CLANG_ENABLE_OBJC_ARC": "YES",
         "CLANG_WARN_BOOL_CONVERSION": "YES",
         "CLANG_WARN_CONSTANT_CONVERSION": "YES",