--- a/project_files/hwc/rtl/pas2c.h	Thu Dec 11 15:20:23 2014 +0100
+++ b/project_files/hwc/rtl/pas2c.h	Thu Dec 11 17:50:05 2014 +0100
@@ -61,7 +61,7 @@
 typedef LongInt * PLongInt;
 typedef LongWord * PLongWord;
 typedef Integer * PInteger;
-typedef int PtrInt;
+typedef ptrdiff_t PtrInt;
 typedef wchar_t widechar;
 typedef wchar_t* PWideChar;
 typedef char Char;