From 47bcfff26be59c3979778b4621cd61f132c1a6d9 Mon Sep 17 00:00:00 2001
From: Ned Deily <nad@acm.org>
Date: Sat, 8 Sep 2012 18:50:56 -0700
Subject: Issue #15822: Fix installation of lib2to3 grammar pickles to ensure
 they are created in the install locations and with the proper timestamp.
 (Solution suggested by MvL)

---
 Lib/lib2to3/pgen2/driver.py | 17 +++++++++++++++++
 Makefile.pre.in             |  8 +++++---
 Misc/NEWS                   |  2 +-
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/Lib/lib2to3/pgen2/driver.py b/Lib/lib2to3/pgen2/driver.py
index e7828ff..4c611c6 100644
--- a/Lib/lib2to3/pgen2/driver.py
+++ b/Lib/lib2to3/pgen2/driver.py
@@ -138,3 +138,20 @@ def _newer(a, b):
     if not os.path.exists(b):
         return True
     return os.path.getmtime(a) >= os.path.getmtime(b)
+
+
+def main(*args):
+    """Main program, when run as a script: produce grammar pickle files.
+
+    Calls load_grammar for each argument, a path to a grammar text file.
+    """
+    if not args:
+        args = sys.argv[1:]
+    logging.basicConfig(level=logging.INFO, stream=sys.stdout,
+                        format='%(message)s')
+    for gt in args:
+        load_grammar(gt, save=True, force=True)
+    return True
+
+if __name__ == "__main__":
+    sys.exit(int(not main()))
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 5cb6774..6dec272 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -945,8 +945,6 @@ LIBSUBDIRS=	tkinter tkinter/test tkinter/test/test_tkinter \
 		unittest unittest/test \
 		curses pydoc_data $(MACHDEPS)
 libinstall:	build_all $(srcdir)/Lib/$(PLATDIR) $(srcdir)/Modules/xxmodule.c
-	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
-		./$(BUILDPYTHON) -Wi -c "import lib2to3.pygram, lib2to3.patcomp;lib2to3.patcomp.PatternCompiler()"
 	@for i in $(SCRIPTDIR) $(LIBDEST); \
 	do \
 		if test ! -d $(DESTDIR)$$i; then \
@@ -1024,6 +1022,10 @@ libinstall:	build_all $(srcdir)/Lib/$(PLATDIR) $(srcdir)/Modules/xxmodule.c
 		./$(BUILDPYTHON) -Wi -O $(DESTDIR)$(LIBDEST)/compileall.py \
 		-d $(LIBDEST)/site-packages -f \
 		-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
+	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+		./$(BUILDPYTHON) -m lib2to3.pgen2.driver $(DESTDIR)$(LIBDEST)/lib2to3/Grammar.txt
+	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+		./$(BUILDPYTHON) -m lib2to3.pgen2.driver $(DESTDIR)$(LIBDEST)/lib2to3/PatternGrammar.txt
 
 # Create the PLATDIR source directory, if one wasn't distributed..
 $(srcdir)/Lib/$(PLATDIR):
@@ -1264,7 +1266,7 @@ clean: pycremoval
 	find . -name '*.so.[0-9]*.[0-9]*' -exec rm -f {} ';'
 	find build -name 'fficonfig.h' -exec rm -f {} ';' || true
 	find build -name 'fficonfig.py' -exec rm -f {} ';' || true
-	-rm -f $(srcdir)/Lib/lib2to3/*Grammar*.pickle
+	-rm -f Lib/lib2to3/*Grammar*.pickle
 	-rm -f Modules/_testembed
 
 profile-removal:
diff --git a/Misc/NEWS b/Misc/NEWS
index 065f5f6..de76a78 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -525,7 +525,7 @@ Build
 - Issue #15819: Make sure we can build Python out-of-tree from a readonly
   source directory.  (Somewhat related to Issue #9860.)
 
-- Issue #15645: Ensure 2to3 grammar pickles are properly installed.
+- Issue #15822: Ensure 2to3 grammar pickles are properly installed.
 
 - Issue #15560: Fix building _sqlite3 extension on OS X with an SDK.
 
-- 
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