[swift-build-dev] How to specify system header dependencies

[Evan Maloney]

Thanks for the tip, Daniel. I'll give that a try.

Very excited that SPM was included in the Swift release. It's going to solve a real pain point for developers.



> On Dec 14, 2015, at 11:28 AM, Daniel Dunbar <daniel_dunbar at apple.com> wrote:
> 
> 
>> On Dec 14, 2015, at 8:15 AM, Evan Maloney via swift-build-dev <swift-build-dev at swift.org> wrote:
>> 
>> Hello,
>> 
>> I have a project that has a dependency on the asl.h system header.
>> 
>> This header is present on all Apple platforms. When building with Xcode, this dependency is specified in the bridging header, allowing the C API provided by asl.h to be exposed to Swift.
> 
> For now, the only way to do this is with the "system modules" feature (and a hard coded path): https://github.com/apple/swift-package-manager/blob/master/Documentation/SystemModules.md
> 
>> As far as I can tell, there's no way to specify a bridging header using the Swift Package Manager or to otherwise specify a C API to expose to Swift.
>> 
>> Am I mistaken? Am I just missing something? Or is SPM only intended to be used to build something in "pure Swift"?
> 
> You are correct, but it isn't about "intention", this is just stuff which isn't supported *yet*.
> 
> - Daniel
> 
>> 
>> Thanks,
>> Evan
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>