use xlibc

Package.swift

@@ -1,5 +1,8 @@
 import PackageDescription
 
 let package = Package(
-    name: "CKit"
+    name: "CKit",
+    dependencies: [
+        .Package(url: "https://github.com/michael-yuji/xlibc.git", majorVersion: 0)
+    ]
 )

Sources/CKit.swift

@@ -30,8 +30,4 @@
 //  Copyright © 2017 Yuji. All rights reserved.
 //
 
-#if os(OSX) || os(iOS) || os(watchOS) || os(tvOS)
-@_exported import Darwin.C
-#else
-@_exported import Glibc
-#endif
+@_exported import xlibc

Sources/Dirent.swift

@@ -30,8 +30,6 @@
 //
 //
 
-import Foundation
-
 #if os(OSX) || os(iOS) || os(watchOS) || os(tvOS)
 public typealias DirentRawType = Int32
 #elseif os(Linux)

Sources/FileInfo.swift

@@ -35,7 +35,7 @@ import typealias Foundation.TimeInterval
 
 public typealias cstat = CKit.stat
 
-public enum FileStatusError: Error {
+public enum FileInfoError: Error {
     case searchPermissionDenied
     case badFileDescriptor
     case badAddress
@@ -154,26 +154,26 @@ public extension FileInfo {
 
         switch err {
         case EACCES:
-            throw FileStatusError.searchPermissionDenied
+            throw FileInfoError.searchPermissionDenied
         case EBADF:
-            throw FileStatusError.badFileDescriptor
+            throw FileInfoError.badFileDescriptor
         case EFAULT:
-            throw FileStatusError.badAddress
+            throw FileInfoError.badAddress
         case ELOOP:
-            throw FileStatusError.tooManySymbolicLinksEncountered
+            throw FileInfoError.tooManySymbolicLinksEncountered
         case ENAMETOOLONG:
-            throw FileStatusError.pathIs2Long
+            throw FileInfoError.pathIs2Long
         case ENOENT:
-            throw FileStatusError.componentOfPathDoesNotExist
+            throw FileInfoError.componentOfPathDoesNotExist
         case ENOMEM:
-            throw FileStatusError.outOfMemory
+            throw FileInfoError.outOfMemory
         case ENOTDIR:
-            throw FileStatusError.componentOfPathIsNotDirectory
+            throw FileInfoError.componentOfPathIsNotDirectory
         case EOVERFLOW:
-            throw FileStatusError.overflow
+            throw FileInfoError.overflow
         case -1:
             perror("stat")
-            throw FileStatusError.badAddress
+            throw FileInfoError.badAddress
         default:
             break
         }

Sources/System.swift

@@ -30,12 +30,6 @@
 //
 //
 
-#if os(OSX) || os(iOS) || os(tvOS) || os(watchOS)
-import Darwin
-#else
-import Glibc
-#endif
-
 #if os(OSX) || os(iOS) || os(watchOS) || os(tvOS)
 public typealias sys_conf_arg_t = Int32
 #elseif os(Linux)