Linker errors

[mister-drgn]

Hi, I appreciate that you're providing this. I wonder if you have any documentation on resolving "Undefined symbol" linker errors, for those of using running on MacOS but using a package.swift file. Someone initially helped me out by suggesting using the following in my package file:

linkerSettings: [
.linkedFramework("Accelerate", .when(platforms: [.macOS])),
.linkedFramework("OpenCL", .when(platforms: [.macOS]))
]

This worked great until I tried to use the VideoCapture constructor, at which point I got 50 more "Undefined symbol" errors. I was able to resolve some of these by linking two additional frameworks, AVFoundation and CoreMedia. The final 21 errors all relate to "ob", for example ob::VideoFrame::width(). The same person who had helped me suggested these symbols are defined in the OrbbecSDK library. However, so far I have been unable to find a way to include that library in my package.swift file, even after downloading its latest release onto my machine.

Do you have ideas about this? Any help would be appreciated. Thanks.

[Lxrd-AJ]

My recommendation might be to create a new Xcode project and install opencv-spm as a dependency there.

If it builds fine with no linker errors, then most likely it could be an issue with the Xcode project and it's settings.

I think these kind of linker errors usually pop up for projects created using Xcode 13/14 and are being built in Xcode 15/16-beta