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harlanhaskins/swiftpm-c++.md

Created January 16, 2017 18:25
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swiftpm-c++.md

SwiftPM C++ Source File Support

Introduction

Swift Package Manager is currently able to compile C and Objective-C source files as targets. We wish to extend this to C++ source files, allowing developers to interface with existing C++ libraries and expose C APIs that can be consumed in Swift.

swift-evolution thread

Motivation

It's common for developers to mix C and C++ in projects, especially if they use a system C++ library. Unfortunately, SwiftPM cannot facilitate these kinds of projects, because it is not able to differentiate C++ and C files within the same target.

Proposed Solution

Teach SwiftPM how to compile C++ and Objective-C++ files, and provide a -Xcxx flag to pass arguments to clang++.

Detailed Design

Impact on Existing Code

This proposal is additive, so it will not affect existing C or Objective-C targets.

Alternatives Considered

Unsolved Problems

Future Directions

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