Auto merge of #18353 - tigercosmos:readme-w, r=larsbergstrom

add note on windows build

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add note on windows build to `README.md`
based  on #18291
@larsbergstrom, please check, thanks.
---
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- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).

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- [ ] There are tests for these changes OR
- [X] These changes do not require tests because `README`

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This commit is contained in:
bors-servo 2017-09-02 11:31:49 -05:00 committed by GitHub
commit 7cb47f1636

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@ -112,6 +112,12 @@ settings for the installer are fine).
4. Install Visual Studio Community 2017 (https://www.visualstudio.com/). You MUST add "Visual C++" to the 4. Install Visual Studio Community 2017 (https://www.visualstudio.com/). You MUST add "Visual C++" to the
list of installed components. It is not on by default. list of installed components. It is not on by default.
> If you encountered errors with the environment above, do the following for a workaround:
> 1. Download and install [Build Tools for Visual Studio 2017](https://www.visualstudio.com/thank-you-downloading-visual-studio/?sku=BuildTools&rel=15)
> 2. Install `python2.7 x86-x64` and `virtualenv`
> 3. Since `mach.bat` cannot find the prompt, you should execute `Developer Command Prompt for VS 2017` manually in the Windows menu. ( You may need to choose the type, such as `x86_x64 Cross Tools Command Prompt for VS 2017`, manually if it cannot recognize type correctly. )
> 4. `cd to/the/path/servo`
> 5. `python mach build -d`
#### Cross-compilation for Android #### Cross-compilation for Android