Recent change in the way options are given to cpp

[Neil Booth]

Olivier Hainque wrote:-

> Seems like the order of %{U*} and %{D*} in the cpp_options specs has changed
> very recently (2000/09/07 I believe), which might lead to very different
> behaviors for identical command lines between today and a few days ago.
> 
> Was there a strong reason for this ?

I remember something about this 3 or 4 wks ago.  I believe it fixed a
message about redefining a macro.  It is not the correct fix, though -
gcc needs to be taught how to forward the options in the order they
appear.

Patches welcome!

Neil.