make the Xcode project `SimpleAssimpViewX.xcodeproj` work

samples/SimpleAssimpViewX/SimpleAssimpViewX.xcodeproj/project.pbxproj

@@ -288,9 +288,15 @@
 /* Begin PBXProject section */
 		2A37F4A9FDCFA73011CA2CEA /* Project object */ = {
 			isa = PBXProject;
+			attributes = {
+			};
 			buildConfigurationList = 26FC0AA90875C8B900E6366F /* Build configuration list for PBXProject "SimpleAssimpViewX" */;
 			compatibilityVersion = "Xcode 3.1";
+			developmentRegion = English;
 			hasScannedForEncodings = 1;
+			knownRegions = (
+				en,
+			);
 			mainGroup = 2A37F4AAFDCFA73011CA2CEA /* DisplayLinkAsyncMoviePlayer */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -390,7 +396,7 @@
 					"$(inherited)",
 					"\"$(SRCROOT)\"",
 				);
-				ONLY_ACTIVE_ARCH = NO;
+				ONLY_ACTIVE_ARCH = YES;
 				PRODUCT_NAME = SimpleAssimpViewX;
 				VALID_ARCHS = "x86_64 i386";
 				WRAPPER_EXTENSION = app;