💚 Replace MinGW by clang

[Freed-Wu]

Fix #9

[Freed-Wu]

Even if we change gcc to clang, all program compiled by gcc to programs compiled by clang, it still output .dll.a not .lib.

$ 7z l pyrime-0.2.3-cp314-cp314-win_amd64.whl|rg api.cp
19:2026-07-01 08:37:28 .....       177152        70661  pyrime/api.cp314-win_amd64.pyd
20:2026-07-01 08:37:28 .....         1536          414  pyrime/api.cp314-win_amd64.dll.a

However, clang support to output .lib: Such as https://github.com/rime/librime/releases/download/1.17.0/rime-33e7814-Windows-clang-x64.7z

$ 7z l rime-33e7814-Windows-clang-x64.7z|rg dist/lib/rime
32:2026-06-05 19:42:26 ....A       301604               dist/lib/rime.lib
38:2026-06-05 19:42:26 ....A      5289472               dist/lib/rime.dll

I doubt clang has an option to decide output .lib or .dll.a .

[amorphobia]

I tried following piece of code in src/pyrime/__init__.py

if sys.platform == "win32":
    lib_dir = os.environ.get("LIBRIME_LIB_DIR")
    if lib_dir and os.path.isdir(lib_dir):
        os.add_dll_directory(lib_dir)

Just put official rime.dll for MSVC in path LIBRIME_LIB_DIR. Seemed work well. Not know the effect of .lib or .dll.a, but .dll seemed to be the key.

[amorphobia]

The convention on Windows is to pack .dll with software releases (whl here). You are trying to do so, right?

[Freed-Wu]

I know your meaning, if user doesn't install librime, it will not work because there is no any librime. In that situation, user must

1. Install librime
2. os.add_dll_directory() by themselves.

[amorphobia]

May I interpret your words in following manner:

It is the user (front-end)'s responsibility to invoke os.add_dll_directory() on Windows, but not pyrime's.

However, this requires the front-end to set directory before importing packages from pyrime. i.e., to write the script like

import os
os.add_dll_directory(some_dir_containing_rime_dll)

from pyrime.api import Traits
trait = Traits(...)

But in most cases, people are used to importing packages before other code. This will lead to exception of DLL not found. That's why I was adding the path setting in pyrime's init.

Just my two cents.

[Freed-Wu]

import os
os.add_dll_directory(some_dir_containing_rime_dll)

I think a better approach would be to set the PATH environment variable to include the directory containing the RIME DLLs before running the Python script. Refer 0fc2140