Merge zizzer.eecs.umich.edu:/bk/newmem

into  tpx31.:C:/cygwin/home/stever/bk/newmem

--HG--
extra : convert_revision : c13feaea77fe650a3d11112804a88bc5c729c32e

SConstruct

@@ -159,7 +159,7 @@ env = Environment(ENV = os.environ,  # inherit user's environment vars
                   ROOT = ROOT,
                   SRCDIR = SRCDIR)
 
-env.SConsignFile("sconsign")
+env.SConsignFile(os.path.join(build_root,"sconsign"))
 
 # Default duplicate option is to use hard links, but this messes up
 # when you use emacs to edit a file in the target dir, as emacs moves