On 12/08/15 20:31, James Norris wrote:
> diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
> index 056b2c1..8ace93c 100644
> --- a/gcc/cp/pt.c
> +++ b/gcc/cp/pt.c
> @@ -13907,6 +13907,7 @@ tsubst_expr (tree t, tree args, tsubst_flags_t complain, tree in_decl,
>   	       integral_constant_expression_p)
>
>     tree stmt, tmp;
> +tree s;

This caused a bootstrap failure (unused variable 's'). Committed fix as 
attached.

Thanks,
- Tom