https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69883

--- Comment #3 from charlet at adacore dot com <charlet at adacore dot com> ---
> I could understand that I can not build something form 1992 with todays
> tools, but what I do not understand conceptionally, why the host compiler
> seems to link with the target compiler's runtime, would it work as a
> cross build then?

No, for a cross build you need an identical native compiler (same version)
to start with.

For native you need an older (or equal) compiler.

> Could I even get into trouble building gcc4.9 with gcc-5 as host?

Yes.

Arno

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