I followed whatever procedure had been posted on the System Modules page on the 
Package Manager repo at GitHub. So yes, and I tried about 3 times :-)

Sent from Outlook Mobile




On Tue, Dec 8, 2015 at 9:24 PM -0800, "Harlan Haskins" 
<[email protected]> wrote:





Just covering all the bases here: did you commit and add Package.swift before 
making the tag?

Sent from my iPhone

> On Dec 8, 2015, at 11:08 PM, Jason Dusek via swift-users 
> <[email protected]> wrote:
>
> Gage,
>
> For what it's worth, after running `git init` and `git tag -f 1.0.0`
> in `CCairo` to get something importable, I run into this error:
>
> :;  swift build
> Cloning Packages/CCairo
> <unknown>:0: error: no such file or directory:
> '/Users/solidsnack/Downloads/Sources/example/Packages/CCairo/Package.swift'
>
>
> On Tue, 8 Dec 2015 at 18:22 Gage Morgan via swift-users
> <[email protected]> wrote:
>>
>> Okay, I've filed a report. To make it easier, the thing's code is SR-152.
>>
>> https://bugs.swift.org/browse/SR-152
>>
>> ________________________________
>> From: [email protected]
>> To: [email protected]; [email protected]
>>
>> Subject: RE: [swift-users] Binding Regular C Functions (Gtk, Cairo, etc.)
>> Date: Tue, 8 Dec 2015 18:11:03 -0500
>>
>> What I'd like to know is, what is the "link: " part of the module.modulemap 
>> for? I pasted in the cairo.so part, but this only said that after doing so. 
>> I'd honestly just like to make sure this works.
>>
>> ________________________________
>> To: [email protected]; [email protected]
>> Date: Tue, 8 Dec 2015 18:07:25 -0500
>>
>> Subject: Re: [swift-users] Binding Regular C Functions (Gtk, Cairo, etc.)
>> From: [email protected]
>>
>>
>>
>>
>> ________________________________
>> From: [email protected]
>> To: [email protected]
>> Subject: RE: [swift-users] Binding Regular C Functions (Gtk, Cairo, etc.)
>> Date: Tue, 8 Dec 2015 18:03:42 -0500
>>
>> So...including cairo in an app returns this:
>>
>> Linking Executable:  .build/debug/example
>> /usr/bin/ld: cannot find -l/usr/lib/x86_64-linux-gnu/libcairo.so
>> clang: error: linker command failed with exit code 1 (use -v to see 
>> invocation)
>> <unknown>:0: error: link command failed with exit code 1 (use -v to see 
>> invocation)
>> <unknown>:0: error: build had 1 command failures
>> swift-build: exit(1): 
>> ["/home/mgage/Downloads/swift-2.2-SNAPSHOT-2015-12-01-b-ubuntu15.10/usr/bin/swift-build-tool",
>>  "-f", "/home/mgage/Sources/example/.build/debug/example.o/llbuild.yaml"]
>>
>> What went amiss?
>>
>> ________________________________
>> From: [email protected]
>> Subject: Re: [swift-users] Binding Regular C Functions (Gtk, Cairo, etc.)
>> Date: Mon, 7 Dec 2015 19:27:56 -0800
>> To: [email protected]
>>
>> Once you have followed the instructions to create a system package, your own 
>> package declares a dependency on that package. This is also covered in those 
>> steps.
>>
>> To use the C APIs in your code, simply import the name of the module (as 
>> defined by the modulemap entry) in your swift file. It should just work.
>>
>> For instance, in the example from the sysmodules doc link I sent, you just
>>
>> import CJPEG
>>
>>
>>
>> The C functions will have the same name in Swift as their C counterparts. 
>> The types might adjust to UnsafePointer etc.. For a list of those Swift 
>> bindings, run the REPL and import your module, then perform “:type lookup 
>> Module” to get a printout of available APIs.
>>
>> - mish
>>
>> On Dec 7, 2015, at 6:40 PM, Gage Morgan <[email protected]> wrote:
>>
>> I read that. What I want to know is how to bind the functions themselves 
>> after creating a system package. How to use the c functions that got 
>> imported, if you will.
>>
>> Sent from Outlook
>>
>>
>>
>>
>> On Mon, Dec 7, 2015 at 6:39 PM -0800, "Mish Awadah" <[email protected]> 
>> wrote:
>>
>> Please see the reference at 
>> https://github.com/apple/swift-package-manager/blob/master/Documentation/SystemModules.md
>>
>> - mish
>>
>> On Dec 7, 2015, at 6:33 PM, Gage Morgan via swift-users 
>> <[email protected]> wrote:
>>
>> For any project: How is a C to Swift function binding created? I'd like to 
>> know how to import C functions to Swift. Once I can do this successfully, 
>> I'll be all set.
>>
>> Sent from Outlook
>>
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>>
>>
>>
>>
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