Index: ObjFW.xcodeproj/project.pbxproj
==================================================================
--- ObjFW.xcodeproj/project.pbxproj
+++ ObjFW.xcodeproj/project.pbxproj
@@ -1700,11 +1700,11 @@
 
 /* Begin PBXProject section */
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0460;
+				LastUpgradeCheck = 0500;
 			};
 			buildConfigurationList = 1DEB919308733D9F0010E9CD /* Build configuration list for PBXProject "ObjFW" */;
 			compatibilityVersion = "Xcode 3.1";
 			developmentRegion = English;
 			hasScannedForEncodings = 1;
@@ -2024,11 +2024,10 @@
 
 /* Begin XCBuildConfiguration section */
 		1DEB919408733D9F0010E9CD /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_32_64_BIT)";
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_OPTIMIZATION_LEVEL = 2;
 				OTHER_CFLAGS = (
 					"-fexceptions",
 					"-fconstant-string-class=OFConstantString",
@@ -2035,11 +2034,10 @@
 					"-fno-constant-cfstrings",
 					"-fno-common",
 					"-fblocks",
 					"-pipe",
 				);
-				SDKROOT = "";
 				WARNING_CFLAGS = (
 					"-Wall",
 					"-Werror",
 					"-Wshorten-64-to-32",
 					"-Wwrite-strings",
@@ -2051,11 +2049,10 @@
 			name = Debug;
 		};
 		1DEB919508733D9F0010E9CD /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_32_64_BIT)";
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_OPTIMIZATION_LEVEL = 2;
 				OTHER_CFLAGS = (
 					"-fexceptions",
 					"-fconstant-string-class=OFConstantString",
@@ -2062,11 +2059,10 @@
 					"-fno-constant-cfstrings",
 					"-fno-common",
 					"-fblocks",
 					"-pipe",
 				);
-				SDKROOT = "";
 				WARNING_CFLAGS = (
 					"-Wall",
 					"-Werror",
 					"-Wshorten-64-to-32",
 					"-Wwrite-strings",