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diff --git a/Source/kwsys/DynamicLoader.hxx.in b/Source/kwsys/DynamicLoader.hxx.in
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+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing#kwsys for details.  */
+#ifndef @KWSYS_NAMESPACE@_DynamicLoader_hxx
+#define @KWSYS_NAMESPACE@_DynamicLoader_hxx
+
+#include <@KWSYS_NAMESPACE@/Configure.hxx>
+
+#include <string>
+
+#if defined(__hpux)
+#  include <dl.h>
+#elif defined(_WIN32) && !defined(__CYGWIN__)
+#  include <windows.h>
+#elif defined(__APPLE__)
+#  include <AvailabilityMacros.h>
+#  if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
+#    include <mach-o/dyld.h>
+#  endif
+#elif defined(__BEOS__)
+#  include <be/kernel/image.h>
+#endif
+
+namespace @KWSYS_NAMESPACE@ {
+/** \class DynamicLoader
+ * \brief Portable loading of dynamic libraries or dll's.
+ *
+ * DynamicLoader provides a portable interface to loading dynamic
+ * libraries or dll's into a process.
+ *
+ * Directory currently works with Windows, Apple, HP-UX and Unix (POSIX)
+ * operating systems
+ *
+ * \warning dlopen on *nix system works the following way:
+ * If filename contains a slash ("/"), then it is interpreted as a (relative
+ * or absolute) pathname.  Otherwise, the dynamic linker searches for the
+ * library as follows : see ld.so(8) for further details):
+ * Whereas this distinction does not exist on Win32. Therefore ideally you
+ * should be doing full path to guarantee to have a consistent way of dealing
+ * with dynamic loading of shared library.
+ *
+ * \warning the Cygwin implementation do not use the Win32 HMODULE. Put extra
+ * condition so that we can include the correct declaration (POSIX)
+ */
+
+class @KWSYS_NAMESPACE@_EXPORT DynamicLoader
+{
+public:
+// Ugly stuff for library handles
+// They are different on several different OS's
+#if defined(__hpux)
+  typedef shl_t LibraryHandle;
+#elif defined(_WIN32) && !defined(__CYGWIN__)
+  typedef HMODULE LibraryHandle;
+#elif defined(__APPLE__)
+#  if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
+  typedef NSModule LibraryHandle;
+#  else
+  typedef void* LibraryHandle;
+#  endif
+#elif defined(__BEOS__)
+  typedef image_id LibraryHandle;
+#else // POSIX
+  typedef void* LibraryHandle;
+#endif
+
+  // Return type from DynamicLoader::GetSymbolAddress.
+  typedef void (*SymbolPointer)();
+
+  enum OpenFlags
+  {
+    // Search for dependent libraries beside the library being loaded.
+    //
+    // This is currently only supported on Windows.
+    SearchBesideLibrary = 0x00000001,
+
+    AllOpenFlags = SearchBesideLibrary
+  };
+
+  /** Load a dynamic library into the current process.
+   * The returned LibraryHandle can be used to access the symbols in the
+   * library. The optional second argument is a set of flags to use when
+   * opening the library. If unrecognized or unsupported flags are specified,
+   * the library is not opened. */
+  static LibraryHandle OpenLibrary(const std::string&);
+  static LibraryHandle OpenLibrary(const std::string&, int);
+
+  /** Attempt to detach a dynamic library from the
+   * process.  A value of true is returned if it is successful. */
+  static int CloseLibrary(LibraryHandle);
+
+  /** Find the address of the symbol in the given library. */
+  static SymbolPointer GetSymbolAddress(LibraryHandle, const std::string&);
+
+  /** Return the default module prefix for the current platform.  */
+  static const char* LibPrefix() { return "@KWSYS_DynamicLoader_PREFIX@"; }
+
+  /** Return the default module suffix for the current platform.  */
+  static const char* LibExtension() { return "@KWSYS_DynamicLoader_SUFFIX@"; }
+
+  /** Return the last error produced from a calls made on this class. */
+  static const char* LastError();
+}; // End Class: DynamicLoader
+
+} // namespace @KWSYS_NAMESPACE@
+
+#endif