DanS 9d7054b245 build(lite): enable Windows lite-backend cross-compile (.exe verified) ...

`build.sh --lite-backend --win-release` now cross-compiles a working
ObsidianDragonLite.exe with the real SDXL backend:

- Artifact platform follows the cross target: when only --win-release is
  requested, auto-select build/lite-backend/windows/ (previously always the host
  artifact, which would link a Linux .a into a Windows .exe).
- Link the Win32 system libs a Rust x86_64-pc-windows-gnu staticlib pulls in
  (rustls/schannel, ring, dirs, std) via DRAGONX_LITE_BACKEND_EXTRA_LIBS. The set
  is rustc's `--print native-static-libs` for the backend (winapi_* shims mapped
  to real mingw import libs); all 21 exist in mingw-w64.

Verified end to end on Linux:
- scripts/build-lite-backend-artifact.sh --platform windows cross-builds the
  backend to x86_64-pc-windows-gnu (~105 MB .a); rustls/ring cross-compile clean
  (no openssl blocker); all required litelib_* symbols present.
- build.sh --lite-backend --win-release -> release/windows/ObsidianDragonLite-
  <ver>.exe (PE32+ GUI x86-64, INCBIN-embedded, ~170 MB) + zip, with the same
  full-node-asset exclusion as Linux.

Not yet done: running the .exe on real Windows (cross-compiled only). Plan
updated.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-06-05 15:45:48 -05:00

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