Index: iOS/scrypt-pwgen.xcodeproj/project.pbxproj
==================================================================
--- iOS/scrypt-pwgen.xcodeproj/project.pbxproj
+++ iOS/scrypt-pwgen.xcodeproj/project.pbxproj
@@ -187,11 +187,11 @@
 
 /* Begin PBXProject section */
 		4B2E52D41DA942840040D091 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0910;
+				LastUpgradeCheck = 1010;
 				ORGANIZATIONNAME = "Jonathan Schleifer";
 				TargetAttributes = {
 					4B2E52DB1DA942840040D091 = {
 						CreatedOnToolsVersion = 8.0;
 						DevelopmentTeam = MXKNFCKFL6;
@@ -281,17 +281,19 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -334,17 +336,19 @@
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -374,22 +378,19 @@
 		4B2E52F41DA942840040D091 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_OBJC_ARC = NO;
+				CLANG_ENABLE_OBJC_WEAK = YES;
 				DEVELOPMENT_TEAM = MXKNFCKFL6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"$(PROJECT_DIR)/ObjFW/Frameworks",
 				);
 				HEADER_SEARCH_PATHS = ObjFW/include;
 				INFOPLIST_FILE = Info.plist;
-				LIBRARY_SEARCH_PATHS = (
-					"$(inherited)",
-					"$(PROJECT_DIR)/ObjFW/lib",
-				);
 				PRODUCT_BUNDLE_IDENTIFIER = "zone.heap.scrypt-pwgen.ios";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -397,22 +398,19 @@
 		4B2E52F51DA942840040D091 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_OBJC_ARC = NO;
+				CLANG_ENABLE_OBJC_WEAK = YES;
 				DEVELOPMENT_TEAM = MXKNFCKFL6;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"$(PROJECT_DIR)/ObjFW/Frameworks",
 				);
 				HEADER_SEARCH_PATHS = ObjFW/include;
 				INFOPLIST_FILE = Info.plist;
-				LIBRARY_SEARCH_PATHS = (
-					"$(inherited)",
-					"$(PROJECT_DIR)/ObjFW/lib",
-				);
 				PRODUCT_BUNDLE_IDENTIFIER = "zone.heap.scrypt-pwgen.ios";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;