PathKit build fails through Carthage

[Danappelxx]

Example:

$ cat Cartfile
github "kylef/PathKit"
$ carthage bootstrap
*** No Cartfile.resolved found, updating dependencies
*** Fetching PathKit
*** Checking out PathKit at "0.5.0"
*** xcodebuild output can be found in /var/folders/76/q9xfxg_s187bkp6gyxqqxw8r0000gn/T/carthage-xcodebuild.f9pQMQ.log
*** Building scheme "PathKit" in PathKit.xcworkspace

So carthage builds PathKit, which is great. However, the framework can't be used for whatever reason.

$ cat main.swift
import PathKit
print(Path.current)
$ ls Carthage/Build/Mac
PathKit.framework
$ swiftc main.swift -F Carthage/Build/Mac/
$ ./main
dyld: Library not loaded: @rpath/PathKit.framework/Versions/A/PathKit
  Referenced from: /Users/dan/Desktop/test/./main
  Reason: image not found
[1]    45284 trace trap  ./main

It works perfectly fine with other frameworks, for example Commander.

Thoughts?

[kylef]

Does PathKit.framework get built into Carthage/Build/Mac/?

[Danappelxx]

Yup - it's in the second code block (I edited my post right after I pressed submit).

[kylef]

Just curious, can you try the following before running ./main:

$ install_name_tool -add_rpath "@executable_path/Carthage/Build/Mac/"  "main"

[Danappelxx]

Huh... that worked. I've never heard of that command before. What does it do?

Output:

$ ./main
/Users/dan/Desktop/test

[kylef]

I've written about it at https://github.com/kylef/Commander#installation

When you said it works perfectly for other frameworks, we're you doing this the exact same way? With swiftc?

[Danappelxx]

Yup - take a look at the build script for MastCLI if you need an example.

[kylef]

@Danappelxx I think MastCLI is only working because you haven't used any APIs from Commander only imported it.

Once you try using Commander, without the Commander framework available in the rpath it will not run too.

[Danappelxx]

Src/main.swift uses Commander.

[kylef]

Ah missed that file, was looking in src/Command.swift.

[Danappelxx]

Hm... adding install_name_tool -add_rpath "@executable_path/Carthage/Build/Mac/" "bin/mast" to my setup script in MastCLI doesn't fix the PathKit issue I'm having. Would you happen to know why?

[kylef]

@Danappelxx The rpath you've shown is relative to executable path, and Carthage isn't inside the bin directory.

Should become:

$ install_name_tool -add_rpath "@executable_path/../Carthage/Build/Mac/" "bin/mast"

[Danappelxx]

Man, you really know your stuff - thanks!

[kylef]

Going to close this since it looks like we've resolved the problem.