Bug 501657 - Put local python modules at the beginning of the python path, not the end, tested by Jory Pratt

js/src/xpconnect/src/Makefile.in

@@ -212,6 +212,7 @@ dom_quickstubs.cpp: $(srcdir)/dom_quickstubs.qsconf \
                     $(topsrcdir)/xpcom/idl-parser/xpidl.py \
                     $(DEPTH)/js/src/mozilla-config.h
 	$(PYTHON) $(topsrcdir)/config/pythonpath.py \
+	  -I$(topsrcdir)/other-licenses/ply \
 	  -I$(topsrcdir)/xpcom/idl-parser \
 	  $(srcdir)/qsgen.py \
 	  --idlpath=$(DEPTH)/dist/idl \

xpcom/idl-parser/xpidl.py

@@ -41,9 +41,6 @@
 """A parser for cross-platform IDL (XPIDL) files."""
 
 import sys, os.path, re
-
-sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir,
-                             'other-licenses', 'ply'))
 from ply import lex, yacc
 
 """A type conforms to the following pattern: