Update bundled freetype to 2.6.1

third_party/freetype/src/cff/cf2font.h

 /***************************************************************************/
 /*                                                                         */
 /*  cf2font.h                                                              */
 /*                                                                         */
 /*    Adobe's code for font instances (specification).                     */
 /*                                                                         */
 /*  Copyright 2007-2013 Adobe Systems Incorporated.                        */
 /*                                                                         */
 /*  This software, and all works of authorship, whether in source or       */
 /*  object code form as indicated by the copyright notice(s) included      */
@@ skipping 30 matching lines @@
 
 
 #include "cf2ft.h"
 #include "cf2blues.h"
 
 
 FT_BEGIN_HEADER
 
 
 #define CF2_OPERAND_STACK_SIZE  48
-#define CF2_MAX_SUBR            10 /* maximum subroutine nesting */
+#define CF2_MAX_SUBR            16 /* maximum subroutine nesting;         */
+                                   /* only 10 are allowed but there exist */
+                                   /* fonts like `HiraKakuProN-W3.ttf'    */
+                                   /* (Hiragino Kaku Gothic ProN W3;      */
+                                   /* 8.2d6e1; 2014-12-19) that exceed    */
+                                   /* this limit                          */
 
 
   /* typedef is in `cf2glue.h' */
   struct  CF2_FontRec_
   {
     FT_Memory  memory;
     FT_Error   error;     /* shared error for this instance */
 
     CF2_RenderingFlags  renderingFlags;
 
@@ skipping 45 matching lines @@
                        CF2_F16Dot16*      glyphWidth );
 
 
 FT_END_HEADER
 
 
 #endif /* __CF2FONT_H__ */
 
 
 /* END */