[OE-core] [PATCH] gcc-7.inc: add new warning "Wnot-cross-compiler"

[Burton, Ross]

On 20 July 2017 at 19:51, Khem Raj <raj.khem at gmail.com> wrote:

> it does cause harm, by making the behaviour inconsistent and highly
> dependent
> upon build host.
>

It *stops* behaviour being dependent on the build host, surely.  The
problem is that some recipes use the host compiler when they're not meant
to be and this can cause subtle (or not so subtle) breakage.

Ross
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