diff --git a/NDAlias.xcodeproj/project.pbxproj b/NDAlias.xcodeproj/project.pbxproj
index 6599277..14f2fcb 100755
--- a/NDAlias.xcodeproj/project.pbxproj
+++ b/NDAlias.xcodeproj/project.pbxproj
@@ -253,7 +253,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_CHECK_SWITCH_STATEMENTS = YES;
 				GCC_WARN_EFFECTIVE_CPLUSPLUS_VIOLATIONS = YES;
-				GCC_WARN_FOUR_CHARACTER_CONSTANTS = NO;
+				GCC_WARN_FOUR_CHARACTER_CONSTANTS = YES;
 				GCC_WARN_HIDDEN_VIRTUAL_FUNCTIONS = YES;
 				GCC_WARN_INITIALIZER_NOT_FULLY_BRACKETED = YES;
 				GCC_WARN_MISSING_PARENTHESES = YES;
@@ -261,6 +261,7 @@
 				GCC_WARN_PEDANTIC = NO;
 				GCC_WARN_SHADOW = YES;
 				GCC_WARN_SIGN_COMPARE = YES;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNKNOWN_PRAGMAS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_LABEL = YES;
@@ -275,7 +276,6 @@
 					"-Wall",
 					"-Wextra",
 				);
-				ZERO_LINK = YES;
 			};
 			name = Development;
 		};
@@ -290,7 +290,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_CHECK_SWITCH_STATEMENTS = YES;
 				GCC_WARN_EFFECTIVE_CPLUSPLUS_VIOLATIONS = YES;
-				GCC_WARN_FOUR_CHARACTER_CONSTANTS = NO;
+				GCC_WARN_FOUR_CHARACTER_CONSTANTS = YES;
 				GCC_WARN_HIDDEN_VIRTUAL_FUNCTIONS = YES;
 				GCC_WARN_INITIALIZER_NOT_FULLY_BRACKETED = YES;
 				GCC_WARN_MISSING_PARENTHESES = YES;
@@ -298,6 +298,8 @@
 				GCC_WARN_PEDANTIC = NO;
 				GCC_WARN_SHADOW = YES;
 				GCC_WARN_SIGN_COMPARE = YES;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNKNOWN_PRAGMAS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_LABEL = YES;
@@ -312,7 +314,6 @@
 					"-Wall",
 					"-Wextra",
 				);
-				ZERO_LINK = NO;
 			};
 			name = Deployment;
 		};
@@ -326,7 +327,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_CHECK_SWITCH_STATEMENTS = YES;
 				GCC_WARN_EFFECTIVE_CPLUSPLUS_VIOLATIONS = YES;
-				GCC_WARN_FOUR_CHARACTER_CONSTANTS = NO;
+				GCC_WARN_FOUR_CHARACTER_CONSTANTS = YES;
 				GCC_WARN_HIDDEN_VIRTUAL_FUNCTIONS = YES;
 				GCC_WARN_INITIALIZER_NOT_FULLY_BRACKETED = YES;
 				GCC_WARN_MISSING_PARENTHESES = YES;
@@ -334,6 +335,7 @@
 				GCC_WARN_PEDANTIC = NO;
 				GCC_WARN_SHADOW = YES;
 				GCC_WARN_SIGN_COMPARE = YES;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNKNOWN_PRAGMAS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_LABEL = YES;