added the declaration of the smooth renderer to "include"

include/ftgrays.h

@@ -0,0 +1,20 @@
+#ifndef FTGRAYS_H
+#define FTGRAYS_H
+
+#include <ftimage.h>
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* To make ftgrays.h independent from configuration files we check       */
+  /* whether EXPORT_DEF has been defined already.                          */
+  /*                                                                       */
+  /* On some systems and compilers (Win32 mostly), an extra keyword is     */
+  /* necessary to compile the library as a DLL.                            */
+  /*                                                                       */
+#ifndef EXPORT_DEF
+#define EXPORT_DEF  extern
+#endif
+
+  EXPORT_DEF  FT_Raster_Funcs  ft_grays_raster;
+
+#endif