Merge #693

693: Bump cc from 1.0.38 to 1.0.40 r=Hywan a=dependabot-preview[bot]

Bumps [cc](https://github.com/alexcrichton/cc-rs) from 1.0.38 to 1.0.40.
<details>
<summary>Commits</summary>

- [`6ad3da7`](rust-lang/cc-rs@6ad3da7) Bump to 1.0.40
- [`9fcdab9`](rust-lang/cc-rs@9fcdab9) Fix a bad merge typo
- [`fa98eb0`](rust-lang/cc-rs@fa98eb0) Bump to 1.0.39
- [`0187762`](rust-lang/cc-rs@0187762) Add CUDA support for MSVC ([#426](https://github-redirect.dependabot.com/alexcrichton/cc-rs/issues/426))
- [`5c0dc67`](rust-lang/cc-rs@5c0dc67) Merge pull request [#433](https://github-redirect.dependabot.com/alexcrichton/cc-rs/issues/433) from turboladen/feature/config-ios-version-min
- [`f99a424`](rust-lang/cc-rs@f99a424) Merge pull request [#432](https://github-redirect.dependabot.com/alexcrichton/cc-rs/issues/432) from BaoshanPang/master
- [`5ab556e`](rust-lang/cc-rs@5ab556e) use wr-c++ instead of vx-cxx
- [`bae28ef`](rust-lang/cc-rs@bae28ef) Detect and use `IPHONEOS_DEPLOYMENT_TARGET` for the `-mi*os-version-min` flag
- [`13e04b1`](rust-lang/cc-rs@13e04b1) Merge pull request [#430](https://github-redirect.dependabot.com/alexcrichton/cc-rs/issues/430) from laanwj/2019_08_rv_nopic
- [`c7cd5dd`](rust-lang/cc-rs@c7cd5dd) Merge pull request [#429](https://github-redirect.dependabot.com/alexcrichton/cc-rs/issues/429) from laanwj/2019_08_rv_correct_abi
- Additional commits viewable in [compare view](rust-lang/cc-rs@1.0.38...1.0.40)
</details>
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[![Dependabot compatibility score](https://api.dependabot.com/badges/compatibility_score?dependency-name=cc&package-manager=cargo&previous-version=1.0.38&new-version=1.0.40)](https://dependabot.com/compatibility-score.html?dependency-name=cc&package-manager=cargo&previous-version=1.0.38&new-version=1.0.40)

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