PBXProject.AddTargetDependency

Создает зависимость между этой целью и другой целью. Другая цель может находиться в другом проекте.

using UnityEditor;
using System.IO;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;

public class Sample_AddTargetDependency  
{
    [PostProcessBuild]
    public static void OnPostprocessBuild(BuildTarget buildTarget, string pathToBuiltProject)
    {

        // Stop processing if build target is not iOS
        if (buildTarget != BuildTarget.iOS)
            return;

        // Initialize PBXProject
        string projectPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);
        PBXProject pbxProject = new PBXProject();
        pbxProject.ReadFromFile(projectPath);

        // Get GUIDs of the two targets you want to set up dependency between
        string mainTargetGuid = pbxProject.GetUnityMainTargetGuid();
        string newTargetGuid = pbxProject.AddTarget("ExampleTarget", "app", "example.type");

        // Add the Target dependency
        pbxProject.AddTargetDependency(mainTargetGuid, newTargetGuid);

        // Apply changes to the pbxproj file
        pbxProject.WriteToFile(projectPath);
    }
}