Issue #15645: Ensure 2to3 grammar pickles are properly installed.

(Patch by Ronald Oussoren)

Makefile.pre.in

@@ -1017,6 +1017,8 @@ LIBSUBDIRS=	tkinter tkinter/test tkinter/test/test_tkinter \
 		venv venv/scripts venv/scripts/posix \
 		curses pydoc_data $(MACHDEPS)
 libinstall:	build_all $(srcdir)/Lib/$(PLATDIR) $(srcdir)/Modules/xxmodule.c
+	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+		$(PYTHON_FOR_BUILD) -Wi -c "import lib2to3.pygram, lib2to3.patcomp;lib2to3.patcomp.PatternCompiler()"
 	@for i in $(SCRIPTDIR) $(LIBDEST); \
 	do \
 		if test ! -d $(DESTDIR)$$i; then \
@@ -1094,8 +1096,6 @@ libinstall:	build_all $(srcdir)/Lib/$(PLATDIR) $(srcdir)/Modules/xxmodule.c
 		$(PYTHON_FOR_BUILD) -Wi -O $(DESTDIR)$(LIBDEST)/compileall.py \
 		-d $(LIBDEST)/site-packages -f \
 		-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
-	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
-		$(PYTHON_FOR_BUILD) -Wi -c "import lib2to3.pygram, lib2to3.patcomp;lib2to3.patcomp.PatternCompiler()"
 
 # Create the PLATDIR source directory, if one wasn't distributed..
 $(srcdir)/Lib/$(PLATDIR):
@@ -1340,7 +1340,7 @@ 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 Lib/lib2to3/*Grammar*.pickle
+	-rm -f $(srcdir)/Lib/lib2to3/*Grammar*.pickle
 	-rm -f $(SYSCONFIGDATA)
 	-rm -f Modules/_testembed Modules/_freeze_importlib
 

Misc/NEWS

@@ -105,6 +105,11 @@ Tests
 - Issue #15615: Add some tests for the json module's handling of invalid
   input data.  Patch by Kushal Das.
 
+Build
+-----
+
+- Issue #15645: Ensure 2to3 grammar pickles are properly installed.
+
 
 What's New in Python 3.3.0 Beta 2?
 ==================================