diff --git a/form/fld_ftlink.c b/form/fld_ftlink.c
new file mode 100644
index 0000000..4ed2219
--- /dev/null
+++ b/form/fld_ftlink.c
@@ -0,0 +1,87 @@
+/****************************************************************************
+ * Copyright (c) 1998-2004,2007 Free Software Foundation, Inc.              *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *   Author:  Juergen Pfeifer, 1995,1997                                    *
+ ****************************************************************************/
+
+#include "form.priv.h"
+
+MODULE_ID("$Id: fld_ftlink.c,v 1.13 2007/10/13 19:30:35 tom Exp $")
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnform  
+|   Function      :  FIELDTYPE *link_fieldtype(
+|                                FIELDTYPE *type1,
+|                                FIELDTYPE *type2)
+|   
+|   Description   :  Create a new fieldtype built from the two given types.
+|                    They are connected by an logical 'OR'.
+|                    If an error occurs, errno is set to                    
+|                       E_BAD_ARGUMENT  - invalid arguments
+|                       E_SYSTEM_ERROR  - system error (no memory)
+|
+|   Return Values :  Fieldtype pointer or NULL if error occurred.
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(FIELDTYPE *)
+link_fieldtype(FIELDTYPE *type1, FIELDTYPE *type2)
+{
+  FIELDTYPE *nftyp = (FIELDTYPE *)0;
+
+  T((T_CALLED("link_fieldtype(%p,%p)"), type1, type2));
+  if (type1 && type2)
+    {
+      nftyp = typeMalloc(FIELDTYPE, 1);
+
+      if (nftyp)
+	{
+	  T((T_CREATE("fieldtype %p"), nftyp));
+	  *nftyp = *_nc_Default_FieldType;
+	  nftyp->status |= _LINKED_TYPE;
+	  if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS))
+	    nftyp->status |= _HAS_ARGS;
+	  if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE))
+	    nftyp->status |= _HAS_CHOICE;
+	  nftyp->left = type1;
+	  nftyp->right = type2;
+	  type1->ref++;
+	  type2->ref++;
+	}
+      else
+	{
+	  SET_ERROR(E_SYSTEM_ERROR);
+	}
+    }
+  else
+    {
+      SET_ERROR(E_BAD_ARGUMENT);
+    }
+  returnFieldType(nftyp);
+}
+
+/* fld_ftlink.c ends here */