[System::IO] fix the windows builds for non POSIX directory functions

Author: mydeveloperday

src/framework/System/IO/Directory.cxx

@@ -44,3 +44,23 @@ Array<System::IO::FileInfo> System::IO::DirectoryInfo::GetFiles()
 #endif           
     return files.ToArray();
 }
+
+void Directory::CreateDirectory(const System::String& file)
+{
+#ifdef SUPPORT_DIRENT
+    mkdir(file.c_str(),
+            S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
+#else
+    ::CreateDirectory(file.c_str(),nullptr);
+#endif
+}
+
+/// delete a named directory
+void Directory::Delete(const System::String& file)
+{
+#ifdef SUPPORT_DIRENT
+    rmdir(file.c_str());
+#else
+    ::RemoveDirectory(file.c_str());
+#endif
+}

src/framework/System/IO/Directory.h

@@ -20,18 +20,11 @@ namespace System
     {
     public:
         /// determine if the file exists
-        static void CreateDirectory(const System::String& file)
-        {
-            mkdir(file.str().c_str(),
-                  S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
-        }
+        static void CreateDirectory(const System::String& file);
 
         /// delete a named directory
-        static void Delete(const System::String& file)
-        {
-            rmdir(file.str().c_str());
-        }
-    
+        static void Delete(const System::String& file);
+
     };
 
     /// directory info class