add_dependencies: Track backtraces internally

Record backtraces for "utility" dependencies created by
`add_dependencies` calls.

1 files changed, 6 insertions, 5 deletions

diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index 694de1c3ce..aa2859d077 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -190,10 +190,12 @@ public:
    * name as would be specified to the ADD_EXECUTABLE or UTILITY_SOURCE
    * commands. It is not a full path nor does it have an extension.
    */
-  void AddUtility(const std::string& u, cmMakefile* makefile = nullptr);
+  void AddUtility(std::string const& u, cmMakefile* mf = nullptr);
   ///! Get the utilities used by this target
-  std::set<std::string> const& GetUtilities() const { return this->Utilities; }
-  cmListFileBacktrace const* GetUtilityBacktrace(const std::string& u) const;
+  std::set<BT<std::string>> const& GetUtilities() const
+  {
+    return this->Utilities;
+  }
 
   ///! Set/Get a property of this target file
   void SetProperty(const std::string& prop, const char* value);
@@ -307,8 +309,7 @@ private:
   bool IsGeneratorProvided;
   cmPropertyMap Properties;
   std::set<std::string> SystemIncludeDirectories;
-  std::set<std::string> Utilities;
-  std::map<std::string, cmListFileBacktrace> UtilityBacktraces;
+  std::set<BT<std::string>> Utilities;
   cmPolicies::PolicyMap PolicyMap;
   std::string Name;
   std::string InstallPath;