Consider using "lib" prefix for Cygwin cdylib?

Currently, despite considered a Unix, Cygwin inherits Windows' lack of lib prefix for cdylibs:

$ echo | rustc --crate-type cdylib - # using rustc for simplicity, but cargo projects behave the same
$ ls
librust_out.dll.a rust_out.dll

Whereas all other Unix targets produce lib + name + .so / .dylib. This makes porting applications more hassle than it needs to be IMO.

I think Windows GNU targets should also behave the same, but I imagine that is going to be a lot more breakage, potentially more than it's worth, so I'll limit the request to Cygwin, but opinions welcome.

FWIW, CMake also produces libraries with the lib prefix.

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$ rustc --version --verbose
rustc 1.91.0 (f8297e351 2025-10-28) (Rev4, Built by MSYS2 project)
binary: rustc
commit-hash: f8297e351a40c1439a467bbbb6879088047f50b3
commit-date: 2025-10-28
host: x86_64-pc-cygwin
release: 1.91.0
LLVM version: 21.1.1

(backtrace N/A)

Reproduce the behavior with the rustc --crate-type cdylib - command on the Cygwin target and compare its generated names with other Unix targets. Locate the target-specific artifact naming logic and relevant tests; done means the Cygwin cdylib and import library use the requested lib prefix without unintentionally changing other targets.