diff --git a/include/freetype/internal/cfferrs.h b/include/freetype/internal/cfferrs.h
new file mode 100644
index 000000000..b6588d486
--- /dev/null
+++ b/include/freetype/internal/cfferrs.h
@@ -0,0 +1,130 @@
+/***************************************************************************/
+/*                                                                         */
+/*  cfferrs.h                                                              */
+/*                                                                         */
+/*    OpenType error ID definitions (specification only).                  */
+/*                                                                         */
+/*  Copyright 1996-2000 by                                                 */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __CFFERRORS_H__
+#define __CFFERRORS_H__
+
+
+#include <ft2build.h>
+
+
+FT_BEGIN_HEADER
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Error codes declaration                                               */
+  /*                                                                       */
+  /* The error codes are grouped in `classes' used to indicate the `level' */
+  /* at which the error happened.  The class is given by an error code's   */
+  /* high byte.                                                            */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  /* Success is always 0. */
+
+#define CFF_Err_Ok                         FT_Err_Ok
+
+  /* High level API errors. */
+
+#define CFF_Err_Invalid_File_Format        FT_Err_Invalid_File_Format
+#define CFF_Err_Invalid_Argument           FT_Err_Invalid_Argument
+#define CFF_Err_Invalid_Driver_Handle      FT_Err_Invalid_Driver_Handle
+#define CFF_Err_Invalid_Face_Handle        FT_Err_Invalid_Face_Handle
+#define CFF_Err_Invalid_Instance_Handle    FT_Err_Invalid_Size_Handle
+#define CFF_Err_Invalid_Glyph_Handle       FT_Err_Invalid_Slot_Handle
+#define CFF_Err_Invalid_CharMap_Handle     FT_Err_Invalid_CharMap_Handle
+#define CFF_Err_Invalid_Glyph_Index        FT_Err_Invalid_Glyph_Index
+
+#define CFF_Err_Unimplemented_Feature      FT_Err_Unimplemented_Feature
+
+#define CFF_Err_Invalid_Engine             FT_Err_Invalid_Driver_Handle
+
+  /* Internal errors. */
+
+#define CFF_Err_Out_Of_Memory              FT_Err_Out_Of_Memory
+#define CFF_Err_Unlisted_Object            FT_Err_Unlisted_Object
+
+  /* General glyph outline errors. */
+
+#define CFF_Err_Invalid_Composite          FT_Err_Invalid_Composite
+
+  /* Bytecode interpreter error codes. */
+
+  /* These error codes are produced by the TrueType */
+  /* bytecode interpreter.  They usually indicate a */
+  /* broken font file, a broken glyph within a font */
+  /* file, or a bug in the interpreter!             */
+
+#define CFF_Err_Invalid_Opcode             0x500
+#define CFF_Err_Too_Few_Arguments          0x501
+#define CFF_Err_Stack_Overflow             0x502
+#define CFF_Err_Code_Overflow              0x503
+#define CFF_Err_Bad_Argument               0x504
+#define CFF_Err_Divide_By_Zero             0x505
+#define CFF_Err_Storage_Overflow           0x506
+#define CFF_Err_Cvt_Overflow               0x507
+#define CFF_Err_Invalid_Reference          0x508
+#define CFF_Err_Invalid_Distance           0x509
+#define CFF_Err_Interpolate_Twilight       0x50A
+#define CFF_Err_Debug_OpCode               0x50B
+#define CFF_Err_ENDF_In_Exec_Stream        0x50C
+#define CFF_Err_Out_Of_CodeRanges          0x50D
+#define CFF_Err_Nested_DEFS                0x50E
+#define CFF_Err_Invalid_CodeRange          0x50F
+#define CFF_Err_Invalid_Displacement       0x510
+#define CFF_Err_Execution_Too_Long         0x511
+
+#define CFF_Err_Too_Many_Instruction_Defs  0x512
+#define CFF_Err_Too_Many_Function_Defs     0x513
+
+  /* Other TrueType specific error codes. */
+
+#define CFF_Err_Table_Missing              0x520
+#define CFF_Err_Too_Many_Extensions        0x521
+#define CFF_Err_Extensions_Unsupported     0x522
+#define CFF_Err_Invalid_Extension_Id       0x523
+
+#define CFF_Err_No_Vertical_Data           0x524
+
+#define CFF_Err_Max_Profile_Missing        0x530
+#define CFF_Err_Header_Table_Missing       0x531
+#define CFF_Err_Horiz_Header_Missing       0x532
+#define CFF_Err_Locations_Missing          0x533
+#define CFF_Err_Name_Table_Missing         0x534
+#define CFF_Err_CMap_Table_Missing         0x535
+#define CFF_Err_Hmtx_Table_Missing         0x536
+#define CFF_Err_OS2_Table_Missing          0x537
+#define CFF_Err_Post_Table_Missing         0x538
+
+#define CFF_Err_Invalid_Horiz_Metrics      0x540
+#define CFF_Err_Invalid_CharMap_Format     0x541
+#define CFF_Err_Invalid_PPem               0x542
+#define CFF_Err_Invalid_Vert_Metrics       0x543
+
+#define CFF_Err_Could_Not_Find_Context     0x550
+
+
+FT_END_HEADER
+
+
+#endif /* __CFFERRORS_H__ */
+
+
+/* END */