diff --git a/Kit/Package.hs b/Kit/Package.hs
--- a/Kit/Package.hs
+++ b/Kit/Package.hs
@@ -13,7 +13,7 @@
       contents <- filter (fileBelongsInPackage spec) <$> getDirectoryContents "."
       mkdirP distDir
       let escapedContents = map (\x -> "\"" ++ x ++ "\"") contents
-      sh $ envDontCopy ++ " tar -czf " ++ (distDir </> (kitPath ++ ".tar.gz")) ++ " -s ,^," ++ kitPath ++ "/, " ++ join (intersperse " " escapedContents)
+      sh $ envDontCopy ++ " tar -czhf " ++ (distDir </> (kitPath ++ ".tar.gz")) ++ " -s ,^," ++ kitPath ++ "/, " ++ join (intersperse " " escapedContents)
       return ()
     where
       distDir = "dist"
diff --git a/Kit/Xcode/ProjectFileTemplate.hs b/Kit/Xcode/ProjectFileTemplate.hs
--- a/Kit/Xcode/ProjectFileTemplate.hs
+++ b/Kit/Xcode/ProjectFileTemplate.hs
@@ -95,15 +95,11 @@
               "buildConfigurations" ~> arr [buildConfiguration "Debug" (Just kitConfigRefUUID) [
                                                     "GCC_C_LANGUAGE_STANDARD" ~> val "c99",
                                                     "GCC_OPTIMIZATION_LEVEL" ~> val "0",
-                                                    "GCC_WARN_ABOUT_RETURN_TYPE" ~> val "YES",
-                                                    "GCC_WARN_UNUSED_VARIABLE" ~> val "YES",
                                                     "OTHER_LDFLAGS" ~> val "-ObjC",
                                                     "SDKROOT" ~> val "iphoneos",
                                                     libSearch ]
                                             , buildConfiguration "Release" (Just kitConfigRefUUID) [
                                                     "GCC_C_LANGUAGE_STANDARD" ~> val "c99",
-                                                    "GCC_WARN_ABOUT_RETURN_TYPE" ~> val "YES",
-                                                    "GCC_WARN_UNUSED_VARIABLE" ~> val "YES",
                                                     "OTHER_LDFLAGS" ~> val "-ObjC",
                                                     "SDKROOT" ~> val "iphoneos",
                                                     libSearch
diff --git a/kit.cabal b/kit.cabal
--- a/kit.cabal
+++ b/kit.cabal
@@ -1,5 +1,5 @@
 name:           kit
-version:        0.7.11
+version:        0.7.12
 cabal-version:  >=1.6
 build-type:     Simple
 license:        BSD3