On Thu, Jan 6, 2022, 18:31 cqwrteur via Gcc-patches <gcc-patches@gcc.gnu.org>
wrote:

> When building GCC hosted on windows with Canadian/native compilation
> (host==target), the build scripts in GCC would override DLLs with each
> other. For example, for MinGW-w64, 32-bit DLLs would override 64 bits
> because build scripts copy them both to /bin.
>
> This patch fixes the issue by avoiding copying DLLs with multilibs.
> However, it would still copy when we do not build multilibs, usually the
> native build for GCC on windows.
> ---
>  gcc/configure                  | 26 ++++++++++++++++++++++++++
>

You should probably not be modifying configure directly.

>

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