Re: [PATCH] Correct DLL Installation Path for x86_64-w64-mingw32 Multilib

[Roumen Petrov]

На 19.05.24 г. в 9:28 ч., trcrsired написа:
> From: cqwrteur <100043421+trcrsired@users.noreply.github.com>
>
> GCC folks ask me to submit it to upstream.
>
> see:
> https://gcc.gnu.org/pipermail/gcc-patches/2024-May/651670.html
>
> When building native GCC for the x86_64-w64-mingw32 host, the compiler copies 
> its library DLLs to the `bin` directory. However, in the case of a multilib 
> configuration, both 32-bit and 64-bit libraries end up in the same `bin` 
> directory, leading to conflicts where 64-bit DLLs are overridden by their 
> 32-bit counterparts.
>
> This patch addresses the issue by adjusting the installation path for the 
> libraries. Specifically, it installs the libraries to separate directories: 
> `lib` for 64-bit and `lib32` for 32-bit. This behavior aligns with how 
> libraries are installed when creating an x86_64-w64-mingw32 cross-compiler 
> without copying them to the `bin` directory if it is a multilib build.

[SNIP]

In specified case shared library (DLL) must be installed into same 
location(path) as binary.

Specified OS lacks LD_LIBRARY_PATH or similar functionality. It uses 
PATH instead.
So proposed patch is conceptually wrong.

I'm sure that patch will break regression tests.
For sure cross-build libtool 2.4.6 tests pass in emulated environment 
(wine).

Roumen