Use external/system includes feature from Visual Studio 15.6
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Description
> In response of gcc/clang's command switch "-isystem" VS2017 v15.6 gained a new switch "/external:I" for supporting external/system include paths to prevent warning from third-party headers.
CMake should make use of it.
A closer description can be found here: https://blogs.msdn.microsoft.com/vcblog/2017/12/13/broken-warnings-theory/
Copied from https://gitlab.kitware.com/cmake/cmake/-/issues/17904
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the linked CMake issue and the Visual Studio 15.6 documentation for /external:I, then inspect Meson's Visual Studio backend and its handling of external include paths. Done means Meson has a defined way to emit the switch for supported external/system include paths and the behavior is covered by the relevant backend tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cmake
- Domain
- build-system
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100