python3: Fix pyc-only related runtime exceptions

Python3 changes the pyc lookup strategy, ignoring the
__pycache__ directory if the .py file is missing. Change
install location to enable use of .pyc without their parent .py

See http://www.python.org/dev/peps/pep-3147

Signed-off-by: Daniel Nelson <daniel@sigpwr.com>

--- python3-3.3.0/configure.ac	2013-01-27 16:35:52.429067797 -0800
+++ python3-3.3.0/configure.ac	2013-01-27 16:43:43.528601443 -0800
@@ -1827,6 +1827,23 @@
     LIBTOOL_CRUFT=$LIBTOOL_CRUFT' -compatibility_version $(VERSION) -current_version $(VERSION)';;
 esac
 
+STDLIB_CACHE_FLAGS=
+AC_MSG_CHECKING(for --enable-old-stdlib-cache)
+AC_ARG_ENABLE(old-stdlib-cache,
+    AS_HELP_STRING([--enable-old-stdlib-cache], [enable pre-pep3147 stdlib cache]),
+[
+    if test "$enableval" = "yes"
+    then
+        STDLIB_CACHE_FLAGS="-b"
+    else
+        STDLIB_CACHE_FLAGS="" 
+    fi
+],
+[
+    STDLIB_CACHE_FLAGS="" 
+])
+AC_SUBST(STDLIB_CACHE_FLAGS)
+
 AC_MSG_CHECKING(for --enable-framework)
 if test "$enable_framework"
 then
--- python3-3.3.0/Makefile.pre.in	2013-01-27 16:35:52.422067642 -0800
+++ python3-3.3.0/Makefile.pre.in	2013-01-27 16:37:03.710650439 -0800
@@ -143,6 +143,9 @@
 # Options to enable prebinding (for fast startup prior to Mac OS X 10.3)
 OTHER_LIBTOOL_OPT=@OTHER_LIBTOOL_OPT@
 
+# Option to enable old-style precompiled stdlib
+STDLIB_CACHE_FLAGS=@STDLIB_CACHE_FLAGS@
+
 # Environment to run shared python without installed libraries
 RUNSHARED=       @RUNSHARED@
 
@@ -1079,12 +1082,12 @@
 	fi
 	-PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
 		$(PYTHON_FOR_BUILD) -Wi $(DESTDIR)$(LIBDEST)/compileall.py \
-		-d $(LIBDEST) -f \
+		-d $(LIBDEST) -f $(STDLIB_CACHE_FLAGS) \
 		-x 'bad_coding|badsyntax|site-packages|lib2to3/tests/data' \
 		$(DESTDIR)$(LIBDEST)
 	-PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
 		$(PYTHON_FOR_BUILD) -Wi $(DESTDIR)$(LIBDEST)/compileall.py \
-		-d $(LIBDEST)/site-packages -f \
+		-d $(LIBDEST)/site-packages -f $(STDLIB_CACHE_FLAGS) \
 		-x badsyntax $(DESTDIR)$(LIBDEST)/site-packages
 	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
 		$(PYTHON_FOR_BUILD) -m lib2to3.pgen2.driver $(DESTDIR)$(LIBDEST)/lib2to3/Grammar.txt