diff --git a/Source/cmGeneratedFileStream.cxx b/Source/cmGeneratedFileStream.cxx
index 345f0ba..2768547 100644
--- a/Source/cmGeneratedFileStream.cxx
+++ b/Source/cmGeneratedFileStream.cxx
@@ -14,10 +14,11 @@
 #endif
 
 cmGeneratedFileStream::cmGeneratedFileStream(Encoding encoding)
+  : OriginalLocale(getloc())
 {
 #ifndef CMAKE_BOOTSTRAP
   if (encoding != codecvt::None) {
-    imbue(std::locale(getloc(), new codecvt(encoding)));
+    imbue(std::locale(OriginalLocale, new codecvt(encoding)));
   }
 #else
   static_cast<void>(encoding);
@@ -228,3 +229,14 @@
 {
   this->TempExt = ext;
 }
+
+void cmGeneratedFileStream::WriteRaw(std::string const& data)
+{
+#ifndef CMAKE_BOOTSTRAP
+  std::locale activeLocale = this->imbue(this->OriginalLocale);
+  this->write(data.data(), data.size());
+  this->imbue(activeLocale);
+#else
+  this->write(data.data(), data.size());
+#endif
+}
diff --git a/Source/cmGeneratedFileStream.h b/Source/cmGeneratedFileStream.h
index 3dee142..f6da86e 100644
--- a/Source/cmGeneratedFileStream.h
+++ b/Source/cmGeneratedFileStream.h
@@ -147,6 +147,16 @@
    * This does not work if the file was opened by the constructor.
    */
   void SetTempExt(std::string const& ext);
+
+  /**
+   * Writes the given string directly to the file without changing the
+   * encoding.
+   */
+  void WriteRaw(std::string const& data);
+
+private:
+  // The original locale of the stream (performs no encoding conversion).
+  std::locale OriginalLocale;
 };
 
 #endif