Use our copy of the grammar.

setup.py

@@ -4,6 +4,7 @@ try:
 except ImportError:
     from distutils.core import setup, Extension
 import os
+import stat
 import subprocess
 import sys
 
@@ -128,18 +129,17 @@ def compile_cython_modules(profile=False, compile_more=False, cython_with_refnan
         print "Unable to find pgen, not compiling formal grammar."
     else:
         parser_dir = os.path.join(os.path.dirname(__file__), 'Cython', 'Parser')
-        print ' '.join([
-            pgen,
-            os.path.join(get_python_inc(), '..', 'Grammar', 'Grammar'),
-            os.path.join(parser_dir, 'graminit.h'),
-            os.path.join(parser_dir, 'graminit.c'),
-            ])
+        grammar = os.path.join(parser_dir, 'Grammar')
         subprocess.check_call([
             pgen,
-            os.path.join(get_python_inc(), '..', 'Grammar', 'Grammar'),
+            os.path.join(grammar),
             os.path.join(parser_dir, 'graminit.h'),
             os.path.join(parser_dir, 'graminit.c'),
             ])
+        cst_pyx = os.path.join(parser_dir, 'ConcreteSyntaxTree.pyx')
+        if os.stat(grammar)[stat.ST_MTIME] > os.stat(cst_pyx)[stat.ST_MTIME]:
+            mtime = os.stat(grammar)[stat.ST_MTIME]
+            os.utime(cst_pyx, (mtime, mtime))
         compiled_modules.extend([
                 "Cython.Parser.ConcreteSyntaxTree",
             ])