Building GCC 4.9 RC with in-tree binutils

[Paul Smith]

On Mon, 2014-04-14 at 10:27 -0500, Matt Godbolt wrote:
> However, during the second stage, binutils fails to compile due to
> errors of the form:
> ../bfd/bfd.h:304:75: error: right-hand operand of comma expression has
> no effect [-Werror=unused-value]
>    #define bfd_set_section_userdata(bfd, ptr, val) (((ptr)->userdata =
> (val)),TRUE)

I'm not sure if building binutils in-tree is different (I've only built
it out-of-tree) but I always add "--disable-werror" to my configure
invocation.  See if that helps.