diff -r 966ae86aac75 -r 4701700276f5 misc/liblua/Xcode/Lua.xcodeproj/project.pbxproj
--- a/misc/liblua/Xcode/Lua.xcodeproj/project.pbxproj	Fri Nov 06 01:29:22 2015 +0100
+++ b/misc/liblua/Xcode/Lua.xcodeproj/project.pbxproj	Fri Nov 06 03:21:00 2015 +0100
@@ -290,7 +290,7 @@
 		0867D690FE84028FC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0640;
+				LastUpgradeCheck = 0710;
 			};
 			buildConfigurationList = 1DEB922208733DC00010E9CD /* Build configuration list for PBXProject "Lua" */;
 			compatibilityVersion = "Xcode 3.2";
@@ -398,6 +398,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = c99;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;