March 2026: Delivered a targeted Android native toolchain stability fix in the dart-lang/native repository. The change ensures the static C++ library (c++_static) links against libc++abi to prevent dlopen errors on newer Android versions, and includes regression tests to verify the linking behavior. This work reduces runtime crashes, improves Android build stability, and supports more reliable deployments for downstream apps relying on the native toolchain.

January 2025 monthly summary for dart-lang/sdk: Focused on stabilizing Windows FFI tests by removing brittle dependencies and improving reliability in the Windows build/test pipeline. Implemented a Windows-specific fix that eliminates linking test DLLs to dart.exe by introducing a new C file (dart_api_win.c) that dynamically resolves Dart API functions using GetModuleHandle(NULL) and GetProcAddress. This fixes undefined symbol issues in Windows DLLs for FFI tests and enhances CI stability and test reliability across Windows environments. The work was driven by a single, focused commit.

December 2024 – dart-lang/native Key features delivered: - Added flexible library linking options for native C/C++ builds in the CTool (native_toolchain_c). Introduced libraries and libraryDirectories parameters to CTool to give explicit control over linking, supporting more portable and configurable native asset builds. Updated build scripts and tests to exercise the new options. Major bugs fixed: - No major bugs fixed this month. Overall impact and accomplishments: - Business value: improved build flexibility and reproducibility for native assets, enabling faster configuration of platform-specific linking, reducing manual patching, and lowering risk of linking errors in CI. - Technical achievements: extended CTool capabilities, increased test coverage for native toolchain, and streamlined cross-platform build configurations. Technologies/skills demonstrated: - Proficiency with CTool in native_toolchain_c, build scripting, test automation, and version control. Demonstrated ability to deliver targeted enhancements with minimal surface area. Notable commit: - e00afd983fe686aff3b87628afd241b35010e826 – [native_toolchain_c] Add `libraries` and `libraryDirectories` options to `CTool` (#1423).