Compiler detection is incorrect for native LLVM/Clang install on Windows · mesonbuild/meson#2560

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OS:windowscompilershelp wanted

描述

ClangCompiler.get_soname_args assumes that Clang on Windows is running under MINGW. It then tries to generate -Wl,-soname options, which are incompatible with Clang 5.0.0.0 running natively on Windows.

CompilerArgs.to_native adds groups via -Wl,--start-group and -Wl,--end-group (as get_compiler_uses_gnuld returns true for Clang on Windows).

CCompiler.gen_import_library_args adds the -Wl,--out-implib option.

CCompiler.build_rpath_args adds the -Wl,-rpath option.

Related options -Wl,--as-needed and -Wl,--no-undefined aren't supported either, but they can be disabled via the b_asneeded and b_lundef flags, respectively.

貢獻者指南

技術棧: pythonccpp
領域: build systemtooling
議題類型: bug
難度: 3
預計時間: half day
活動狀態: stale
清晰度: clear
前置要求: Windows environmentClang native installMeson internals
新手友善度: 40
研究方向: Investigate the detection logic in `ClangCompiler.get soname args` and related methods (`CompilerArgs.to native`, `CCompiler.gen import library args`, `CCompiler.build rpath args`) to identify where native Clang on Windows is incorrectly treated as MINGW. Consider adding platform detection or a new ClangWindows class. Refer to comments and issue #2560 for discussion on the proper fix.