The Workspace target only needs to depend on SPMBuildCore, not Build.

Everything it needs has already been moved to SPMBuildCore.

Author: abertelrud

Package.swift

@@ -140,7 +140,7 @@ let package = Package(
         .target(
             /** High level functionality */
             name: "Workspace",
-            dependencies: ["SwiftToolsSupport-auto", "Build", "PackageGraph", "PackageModel", "SourceControl", "Xcodeproj"]),
+            dependencies: ["SwiftToolsSupport-auto", "SPMBuildCore", "PackageGraph", "PackageModel", "SourceControl", "Xcodeproj"]),
 
         // MARK: Commands
 

Sources/Workspace/CMakeLists.txt

@@ -1,6 +1,6 @@
 # This source file is part of the Swift.org open source project
 #
-# Copyright (c) 2014 - 2019 Apple Inc. and the Swift project authors
+# Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
 # Licensed under Apache License v2.0 with Runtime Library Exception
 #
 # See http://swift.org/LICENSE.txt for license information
@@ -23,7 +23,7 @@ add_library(Workspace
 target_link_libraries(Workspace PUBLIC
   TSCBasic
   TSCUtility
-  Build
+  SPMBuildCore
   PackageGraph
   PackageLoading
   PackageModel

Sources/Workspace/Destination.swift

@@ -1,6 +1,5 @@
 import TSCBasic
 import TSCUtility
-import Build
 import SPMBuildCore
 
 public enum DestinationError: Swift.Error {

Sources/Workspace/UserToolchain.swift

@@ -12,7 +12,6 @@ import TSCBasic
 import TSCUtility
 import PackageLoading
 import SPMBuildCore
-import Build
 import Foundation
 
 #if os(Windows)