diff --git a/vChewing.xcodeproj/project.pbxproj b/vChewing.xcodeproj/project.pbxproj
index 1b14118b..31ec6b36 100644
--- a/vChewing.xcodeproj/project.pbxproj
+++ b/vChewing.xcodeproj/project.pbxproj
@@ -1575,6 +1575,8 @@
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_LABEL = YES;
+				GCC_WARN_UNUSED_PARAMETER = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.11.5;
 				ONLY_ACTIVE_ARCH = YES;
@@ -1616,6 +1618,8 @@
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_LABEL = YES;
+				GCC_WARN_UNUSED_PARAMETER = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.11.5;
 				OTHER_CPLUSPLUSFLAGS = (
@@ -1665,9 +1669,6 @@
 				GCC_WARN_SHADOW = YES;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_LABEL = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
 				INFOPLIST_FILE = "Source/Resources/IME-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
@@ -1717,9 +1718,6 @@
 				GCC_WARN_SHADOW = YES;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_LABEL = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
 				INFOPLIST_FILE = "Source/Resources/IME-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
@@ -1762,7 +1760,6 @@
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
 				INFOPLIST_FILE = "Installer/Installer-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
@@ -1799,7 +1796,6 @@
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
 				INFOPLIST_FILE = "Installer/Installer-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",