ykiko eb0a6b35ee refactor(cmake): clean up toolchain and CMakeLists separation (#379) ...

## Summary

Improve CMake build system: cleaner separation, compiler caching, and
release packaging.

### Toolchain & Build
- Clean up `toolchain.cmake` to only contain clang/lld-specific setup
(compiler paths, linker selection, llvm tools), allowing other
toolchains like GCC to work without it
- Add ccache (Linux/macOS) and sccache (Windows) support via toolchain
auto-detection
- Move project-universal flags (`-ffunction-sections`, `--gc-sections`,
`-static-libstdc++`, etc.) to `CMakeLists.txt` so they apply regardless
of toolchain
- Add `-fno-exceptions` to project compile options; fix `/EHs-c-` for
proper MSVC exception disabling
- Use MSVC/clang-cl frontend detection instead of `WIN32` for
MSVC-specific linker flags
- Declare missing options: `CLICE_USE_LIBCXX`, `CLICE_OFFLINE_BUILD`,
`CLICE_ENABLE_BENCHMARK`, `CLICE_RELEASE`

### Release Packaging (`cmake/release.cmake`)
- Strip debug symbols and produce separate symbol archives (`.debug` /
`.dSYM` / `.pdb`)
- Windows: copy PDB via `$<TARGET_PDB_FILE:clice>`; macOS: use
`copy_directory` for dSYM bundle
- Package clice binary + clang resource dir + config into distributable
tarball/zip
- `cmake/archive.cmake` helper for cross-platform archive creation
- Activated via `-DCLICE_RELEASE=ON` (auto-enables LTO)

### Code Cleanup
- Replace manual 40+ line source file list with `GLOB_RECURSE` for
clice-core
- Fix duplicate `include_resolver.cpp` entry
- Use build-time `add_custom_target` for clang resource dir copy
(instead of configure-time `file(COPY)`)
- Gate `scan_benchmark` behind `CLICE_ENABLE_BENCHMARK` option

### CI
- Add compiler cache with env var control (`CCACHE_DIR`/`SCCACHE_DIR`)
and `actions/cache` for persistence
- Proper cache lifecycle: zero-stats before build, show-stats +
stop-server after
- Stop sccache server before pixi cleanup to fix Windows EBUSY error
- Pass `CLICE_ENABLE_BENCHMARK=ON` in benchmark workflow
- Platform-specific ccache/sccache dependencies in pixi.toml

## Test plan
- [x] Local build (RelWithDebInfo) passes
- [x] Local release build (LTO + strip + pack) produces correct archives
- [ ] CI: Linux Debug/RelWithDebInfo
- [ ] CI: macOS Debug/RelWithDebInfo
- [ ] CI: Windows Debug/RelWithDebInfo
- [ ] CI: Benchmark (all platforms)

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-31 20:51:01 +08:00

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