fix: patch whisper-rs-sys for Windows MSVC static CRT

[sanil-23]

Summary

• Patch whisper-rs-sys from tinyhumansai/whisper-rs-sys fork to fix Windows MSVC build failure

Problem

• whisper-rs-sys builds whisper.cpp via CMake which defaults to /MD (dynamic CRT)
• All other C dependencies and Rust itself use /MT (static CRT) on Windows MSVC
• Linker fails with LNK2038: mismatch detected for 'RuntimeLibrary' and LNK1169: multiply defined symbols
• Blocks all Windows development and testing on main

Solution

• Fork whisper-rs-sys to tinyhumansai/whisper-rs-sys with one change: call config.static_crt(true) in build.rs and override all per-config CMake flags (Debug/Release/MinSizeRel/RelWithDebInfo) from /MD to /MT
• Add [patch.crates-io] in Cargo.toml pointing to the fork

Submission Checklist

• Unit tests — N/A (build fix only, no code changes)
• E2E / integration — Verified: cargo build --bin openhuman-core succeeds on Windows MSVC where it previously failed
• Doc comments — Comment in Cargo.toml explaining the patch
• Inline comments — N/A

Impact

• Windows: Build unblocked. No runtime behavior change — same whisper.cpp, just linked with /MT instead of /MD
• Linux/macOS: No effect — the static_crt call is gated behind #[cfg(target_env = "msvc")]

Related

• Issue(s): [Bug] Windows build fails: whisper-rs-sys CRT mismatch (LNK2038 / LNK1169) #273
• Follow-up: Submit fix upstream to whisper-rs crate

Summary by CodeRabbit

• Chores
  • Updated dependency configuration to use an alternative source for a core library component, enabling access to the latest development version.

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request adds a Cargo patch override that redirects the whisper-rs-sys crate dependency to a Git repository on the main branch. This allows the project to use a custom or fixed version of the whisper-rs-sys crate instead of the published version.

Changes

Cohort / File(s)	Summary
Cargo Patch Override Cargo.toml	Added [patch.crates-io] section to replace whisper-rs-sys dependency with Git source from https://github.com/tinyhumansai/whisper-rs-sys.git on the main branch.

Possibly related issues

• [Bug] Windows build fails: whisper-rs-sys CRT mismatch (LNK2038 / LNK1169) #273: Directly related—both involve patching the whisper-rs-sys crate, likely to apply a build fix for Windows CRT compatibility issues.

Poem

🐰 A patch applied with gentle paws,
To whisper-rs-sys without pause,
From Git's main branch, we now compile,
Windows CRT troubles, begone—with style! ✨

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'fix: patch whisper-rs-sys for Windows MSVC static CRT' is a short, clear, and specific description of the main change in the PR—adding a patch override for whisper-rs-sys to fix Windows MSVC build issues.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@Cargo.toml`:
- Around line 130-131: The patch entry for whisper-rs-sys is using a floating
branch; replace the branch reference with the immutable commit currently in the
lockfile by changing the dependency spec for whisper-rs-sys to use rev =
"229cb4c97e41ca302d3f13b1fa7e93a9b417a5f9" (i.e., whisper-rs-sys = { git =
"https://github.com/tinyhumansai/whisper-rs-sys.git", rev =
"229cb4c97e41ca302d3f13b1fa7e93a9b417a5f9" }) so CI runs that don’t use --locked
cannot refresh to a different commit.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: fda8f977-f1ae-4ff1-a7b6-456b1b5ed80c

📥 Commits

Reviewing files that changed from the base of the PR and between d930c47 and 74910aa.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• Cargo.toml