From 0c6468178a76b6a2a11791b010ab01c97855affa Mon Sep 17 00:00:00 2001
From: Justin Goshi <jgoshi@microsoft.com>
Date: Wed, 11 Sep 2019 10:31:05 -0700
Subject: cmComputeLinkInformation: Add GetDirectoriesWithBacktraces

---
 Source/cmComputeLinkInformation.cxx | 22 ++++++++++++++++++++++
 Source/cmComputeLinkInformation.h   |  1 +
 2 files changed, 23 insertions(+)

diff --git a/Source/cmComputeLinkInformation.cxx b/Source/cmComputeLinkInformation.cxx
index ed0bb85..6ee6455 100644
--- a/Source/cmComputeLinkInformation.cxx
+++ b/Source/cmComputeLinkInformation.cxx
@@ -431,6 +431,28 @@ std::vector<std::string> const& cmComputeLinkInformation::GetDirectories()
   return this->OrderLinkerSearchPath->GetOrderedDirectories();
 }
 
+std::vector<BT<std::string>>
+cmComputeLinkInformation::GetDirectoriesWithBacktraces()
+{
+  std::vector<BT<std::string>> directoriesWithBacktraces;
+
+  std::vector<BT<std::string>> targetLinkDirectores =
+    this->Target->GetLinkDirectories(this->Config, this->LinkLanguage);
+
+  const std::vector<std::string>& orderedDirectories = this->GetDirectories();
+  for (const std::string& dir : orderedDirectories) {
+    auto result =
+      std::find(targetLinkDirectores.begin(), targetLinkDirectores.end(), dir);
+    if (result != targetLinkDirectores.end()) {
+      directoriesWithBacktraces.emplace_back(std::move(*result));
+    } else {
+      directoriesWithBacktraces.emplace_back(dir);
+    }
+  }
+
+  return directoriesWithBacktraces;
+}
+
 std::string cmComputeLinkInformation::GetRPathLinkString() const
 {
   // If there is no separate linker runtime search flag (-rpath-link)
diff --git a/Source/cmComputeLinkInformation.h b/Source/cmComputeLinkInformation.h
index ee36a71..71af43f 100644
--- a/Source/cmComputeLinkInformation.h
+++ b/Source/cmComputeLinkInformation.h
@@ -48,6 +48,7 @@ public:
   void AppendValues(std::string& result, std::vector<BT<std::string>>& values);
   ItemVector const& GetItems() const;
   std::vector<std::string> const& GetDirectories() const;
+  std::vector<BT<std::string>> GetDirectoriesWithBacktraces();
   std::vector<std::string> const& GetDepends() const;
   std::vector<std::string> const& GetFrameworkPaths() const;
   std::string GetLinkLanguage() const { return this->LinkLanguage; }
-- 
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