Set glyph_count in Font.set_glyphs, export Raylib_c module

Fixes #63

Author: tjammer

src/raylib/raylib.ml

@@ -2,3 +2,4 @@ include Ctypes_reexports
 include Raylib_types
 include Functions
 module Rlgl = Rlgl
+module Raylib_c = Raylib_c

src/raylib/raylib.mli

@@ -16,6 +16,7 @@ val ptr_of_uint : Unsigned.uint -> Unsigned.uint ptr
 val void_ptr_of_int : int -> unit ptr
 
 module CArray = Ctypes.CArray
+module Raylib_c = Raylib_c
 
 (** {1 Constants} *)
 

src/raylib/raylib_types.ml

@@ -370,7 +370,10 @@ module Font = struct
 
   let set_texture font texture = setf font Font.texture texture
   let set_recs font recs = setf font Font.recs recs
-  let set_glyphs font glyphs = setf font Font.glyphs (CArray.start glyphs)
+
+  let set_glyphs font glyphs =
+    setf font Font.glyph_count (CArray.length glyphs);
+    setf font Font.glyphs (CArray.start glyphs)
 end
 
 module Camera3D = struct