Merge topic 'backtrace-gen-values'

dd4f8b2a48 install: Record TARGET mode backtraces internally
753ab3c978 Add generator APIs to get build settings with backtraces
52311484dd cmLocalGenerator: Make MoveSystemIncludesToEnd file-local

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !2502

7 files changed, 377 insertions, 153 deletions

diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index fa489e2..b8c9598 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -439,7 +439,7 @@ static void handleSystemIncludesDep(
     KindedSources const& kinded = this->GetKindedSources(config);             \
     for (SourceAndKind const& s : kinded.Sources) {                           \
       if (s.Kind == KIND) {                                                   \
-        data.push_back(s.Source);                                             \
+        data.push_back(s.Source.Value);                                       \
       }                                                                       \
     }                                                                         \
   }
@@ -865,7 +865,8 @@ static void AddObjectEntries(
 static bool processSources(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& srcs, std::unordered_set<std::string>& uniqueSrcs,
+  std::vector<BT<std::string>>& srcs,
+  std::unordered_set<std::string>& uniqueSrcs,
   cmGeneratorExpressionDAGChecker* dagChecker, std::string const& config,
   bool debugSources)
 {
@@ -916,7 +917,7 @@ static bool processSources(
     std::string usedSources;
     for (std::string const& src : entrySources) {
       if (uniqueSrcs.insert(src).second) {
-        srcs.push_back(src);
+        srcs.emplace_back(src, entry->ge->GetBacktrace());
         if (debugSources) {
           usedSources += " * " + src + "\n";
         }
@@ -933,9 +934,10 @@ static bool processSources(
   return contextDependent;
 }
 
-void cmGeneratorTarget::GetSourceFiles(std::vector<std::string>& files,
-                                       const std::string& config) const
+std::vector<BT<std::string>> cmGeneratorTarget::GetSourceFilePaths(
+  std::string const& config) const
 {
+  std::vector<BT<std::string>> files;
   assert(this->GetType() != cmStateEnums::INTERFACE_LIBRARY);
 
   if (!this->LocalGenerator->GetGlobalGenerator()->GetConfigureDoneCMP0026()) {
@@ -957,7 +959,7 @@ void cmGeneratorTarget::GetSourceFiles(std::vector<std::string>& files,
         files.push_back(item);
       }
     }
-    return;
+    return files;
   }
 
   std::vector<std::string> debugProperties;
@@ -1009,11 +1011,23 @@ void cmGeneratorTarget::GetSourceFiles(std::vector<std::string>& files,
 
   cmDeleteAll(linkInterfaceSourcesEntries);
   cmDeleteAll(linkObjectsEntries);
+  return files;
 }
 
 void cmGeneratorTarget::GetSourceFiles(std::vector<cmSourceFile*>& files,
                                        const std::string& config) const
 {
+  std::vector<BT<cmSourceFile*>> tmp = this->GetSourceFiles(config);
+  files.reserve(tmp.size());
+  for (BT<cmSourceFile*>& v : tmp) {
+    files.push_back(v.Value);
+  }
+}
+
+std::vector<BT<cmSourceFile*>> cmGeneratorTarget::GetSourceFiles(
+  std::string const& config) const
+{
+  std::vector<BT<cmSourceFile*>> files;
   if (!this->GlobalGenerator->GetConfigureDoneCMP0026()) {
     // Since we are still configuring not all sources may exist yet,
     // so we need to avoid full source classification because that
@@ -1021,16 +1035,15 @@ void cmGeneratorTarget::GetSourceFiles(std::vector<cmSourceFile*>& files,
     // Since this is only for compatibility with old policies that
     // projects should not depend on anymore, just compute the files
     // without memoizing them.
-    std::vector<std::string> srcs;
-    this->GetSourceFiles(srcs, config);
+    std::vector<BT<std::string>> srcs = this->GetSourceFilePaths(config);
     std::set<cmSourceFile*> emitted;
-    for (std::string const& s : srcs) {
-      cmSourceFile* sf = this->Makefile->GetOrCreateSource(s);
+    for (BT<std::string> const& s : srcs) {
+      cmSourceFile* sf = this->Makefile->GetOrCreateSource(s.Value);
       if (emitted.insert(sf).second) {
-        files.push_back(sf);
+        files.emplace_back(sf, s.Backtrace);
       }
     }
-    return;
+    return files;
   }
 
   KindedSources const& kinded = this->GetKindedSources(config);
@@ -1038,18 +1051,33 @@ void cmGeneratorTarget::GetSourceFiles(std::vector<cmSourceFile*>& files,
   for (SourceAndKind const& si : kinded.Sources) {
     files.push_back(si.Source);
   }
+  return files;
 }
 
 void cmGeneratorTarget::GetSourceFilesWithoutObjectLibraries(
   std::vector<cmSourceFile*>& files, const std::string& config) const
 {
+  std::vector<BT<cmSourceFile*>> tmp =
+    this->GetSourceFilesWithoutObjectLibraries(config);
+  files.reserve(tmp.size());
+  for (BT<cmSourceFile*>& v : tmp) {
+    files.push_back(v.Value);
+  }
+}
+
+std::vector<BT<cmSourceFile*>>
+cmGeneratorTarget::GetSourceFilesWithoutObjectLibraries(
+  std::string const& config) const
+{
+  std::vector<BT<cmSourceFile*>> files;
   KindedSources const& kinded = this->GetKindedSources(config);
   files.reserve(kinded.Sources.size());
   for (SourceAndKind const& si : kinded.Sources) {
-    if (si.Source->GetObjectLibrary().empty()) {
+    if (si.Source.Value->GetObjectLibrary().empty()) {
       files.push_back(si.Source);
     }
   }
+  return files;
 }
 
 cmGeneratorTarget::KindedSources const& cmGeneratorTarget::GetKindedSources(
@@ -1089,16 +1117,15 @@ void cmGeneratorTarget::ComputeKindedSources(KindedSources& files,
                                              std::string const& config) const
 {
   // Get the source file paths by string.
-  std::vector<std::string> srcs;
-  this->GetSourceFiles(srcs, config);
+  std::vector<BT<std::string>> srcs = this->GetSourceFilePaths(config);
 
   cmsys::RegularExpression header_regex(CM_HEADER_REGEX);
   std::vector<cmSourceFile*> badObjLib;
 
   std::set<cmSourceFile*> emitted;
-  for (std::string const& s : srcs) {
+  for (BT<std::string> const& s : srcs) {
     // Create each source at most once.
-    cmSourceFile* sf = this->Makefile->GetOrCreateSource(s);
+    cmSourceFile* sf = this->Makefile->GetOrCreateSource(s.Value);
     if (!emitted.insert(sf).second) {
       continue;
     }
@@ -1161,7 +1188,7 @@ void cmGeneratorTarget::ComputeKindedSources(KindedSources& files,
     }
 
     // Save this classified source file in the result vector.
-    files.Sources.push_back({ sf, kind });
+    files.Sources.push_back({ BT<cmSourceFile*>(sf, s.Backtrace), kind });
   }
 
   if (!badObjLib.empty()) {
@@ -1197,14 +1224,14 @@ void cmGeneratorTarget::ComputeAllConfigSources() const
     KindedSources const& sources = this->GetKindedSources(configs[ci]);
     for (SourceAndKind const& src : sources.Sources) {
       std::map<cmSourceFile const*, size_t>::iterator mi =
-        index.find(src.Source);
+        index.find(src.Source.Value);
       if (mi == index.end()) {
         AllConfigSource acs;
-        acs.Source = src.Source;
+        acs.Source = src.Source.Value;
         acs.Kind = src.Kind;
         this->AllConfigSources.push_back(std::move(acs));
         std::map<cmSourceFile const*, size_t>::value_type entry(
-          src.Source, this->AllConfigSources.size() - 1);
+          src.Source.Value, this->AllConfigSources.size() - 1);
         mi = index.insert(entry).first;
       }
       this->AllConfigSources[mi->second].Configs.push_back(ci);
@@ -2474,7 +2501,7 @@ std::string cmGeneratorTarget::GetCreateRuleVariable(
 static void processIncludeDirectories(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& includes,
+  std::vector<BT<std::string>>& includes,
   std::unordered_set<std::string>& uniqueIncludes,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   bool debugIncludes, const std::string& language)
@@ -2566,7 +2593,7 @@ static void processIncludeDirectories(
       std::string inc = entryInclude;
 
       if (uniqueIncludes.insert(inc).second) {
-        includes.push_back(inc);
+        includes.emplace_back(inc, entry->ge->GetBacktrace());
         if (debugIncludes) {
           usedIncludes += " * " + inc + "\n";
         }
@@ -2582,10 +2609,10 @@ static void processIncludeDirectories(
   }
 }
 
-std::vector<std::string> cmGeneratorTarget::GetIncludeDirectories(
+std::vector<BT<std::string>> cmGeneratorTarget::GetIncludeDirectories(
   const std::string& config, const std::string& lang) const
 {
-  std::vector<std::string> includes;
+  std::vector<BT<std::string>> includes;
   std::unordered_set<std::string> uniqueIncludes;
 
   cmGeneratorExpressionDAGChecker dagChecker(this, "INCLUDE_DIRECTORIES",
@@ -2655,7 +2682,7 @@ enum class OptionsParse
 static void processOptionsInternal(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& options,
+  std::vector<BT<std::string>>& options,
   std::unordered_set<std::string>& uniqueOptions,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   bool debugOptions, const char* logName, std::string const& language,
@@ -2672,9 +2699,13 @@ static void processOptionsInternal(
       if (uniqueOptions.insert(opt).second) {
         if (parse == OptionsParse::Shell &&
             cmHasLiteralPrefix(opt, "SHELL:")) {
-          cmSystemTools::ParseUnixCommandLine(opt.c_str() + 6, options);
+          std::vector<std::string> tmp;
+          cmSystemTools::ParseUnixCommandLine(opt.c_str() + 6, tmp);
+          for (std::string& o : tmp) {
+            options.emplace_back(std::move(o), entry->ge->GetBacktrace());
+          }
         } else {
-          options.push_back(opt);
+          options.emplace_back(opt, entry->ge->GetBacktrace());
         }
         if (debugOptions) {
           usedOptions += " * " + opt + "\n";
@@ -2694,7 +2725,7 @@ static void processOptionsInternal(
 static void processCompileOptions(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& options,
+  std::vector<BT<std::string>>& options,
   std::unordered_set<std::string>& uniqueOptions,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   bool debugOptions, std::string const& language)
@@ -2708,6 +2739,17 @@ void cmGeneratorTarget::GetCompileOptions(std::vector<std::string>& result,
                                           const std::string& config,
                                           const std::string& language) const
 {
+  std::vector<BT<std::string>> tmp = this->GetCompileOptions(config, language);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetCompileOptions(
+  std::string const& config, std::string const& language) const
+{
+  std::vector<BT<std::string>> result;
   std::unordered_set<std::string> uniqueOptions;
 
   cmGeneratorExpressionDAGChecker dagChecker(this, "COMPILE_OPTIONS", nullptr,
@@ -2743,12 +2785,13 @@ void cmGeneratorTarget::GetCompileOptions(std::vector<std::string>& result,
                         language);
 
   cmDeleteAll(linkInterfaceCompileOptionsEntries);
+  return result;
 }
 
 static void processCompileFeatures(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& options,
+  std::vector<BT<std::string>>& options,
   std::unordered_set<std::string>& uniqueOptions,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   bool debugOptions)
@@ -2761,6 +2804,17 @@ static void processCompileFeatures(
 void cmGeneratorTarget::GetCompileFeatures(std::vector<std::string>& result,
                                            const std::string& config) const
 {
+  std::vector<BT<std::string>> tmp = this->GetCompileFeatures(config);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetCompileFeatures(
+  std::string const& config) const
+{
+  std::vector<BT<std::string>> result;
   std::unordered_set<std::string> uniqueFeatures;
 
   cmGeneratorExpressionDAGChecker dagChecker(this, "COMPILE_FEATURES", nullptr,
@@ -2793,12 +2847,13 @@ void cmGeneratorTarget::GetCompileFeatures(std::vector<std::string>& result,
                          uniqueFeatures, &dagChecker, config, debugFeatures);
 
   cmDeleteAll(linkInterfaceCompileFeaturesEntries);
+  return result;
 }
 
 static void processCompileDefinitions(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& options,
+  std::vector<BT<std::string>>& options,
   std::unordered_set<std::string>& uniqueOptions,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   bool debugOptions, std::string const& language)
@@ -2809,9 +2864,21 @@ static void processCompileDefinitions(
 }
 
 void cmGeneratorTarget::GetCompileDefinitions(
-  std::vector<std::string>& list, const std::string& config,
+  std::vector<std::string>& result, const std::string& config,
   const std::string& language) const
 {
+  std::vector<BT<std::string>> tmp =
+    this->GetCompileDefinitions(config, language);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetCompileDefinitions(
+  std::string const& config, std::string const& language) const
+{
+  std::vector<BT<std::string>> list;
   std::unordered_set<std::string> uniqueOptions;
 
   cmGeneratorExpressionDAGChecker dagChecker(this, "COMPILE_DEFINITIONS",
@@ -2872,13 +2939,14 @@ void cmGeneratorTarget::GetCompileDefinitions(
                             language);
 
   cmDeleteAll(linkInterfaceCompileDefinitionsEntries);
+  return list;
 }
 
 namespace {
 void processLinkOptions(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& options,
+  std::vector<BT<std::string>>& options,
   std::unordered_set<std::string>& uniqueOptions,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   bool debugOptions, std::string const& language)
@@ -2893,6 +2961,17 @@ void cmGeneratorTarget::GetLinkOptions(std::vector<std::string>& result,
                                        const std::string& config,
                                        const std::string& language) const
 {
+  std::vector<BT<std::string>> tmp = this->GetLinkOptions(config, language);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetLinkOptions(
+  std::string const& config, std::string const& language) const
+{
+  std::vector<BT<std::string>> result;
   std::unordered_set<std::string> uniqueOptions;
 
   cmGeneratorExpressionDAGChecker dagChecker(this, "LINK_OPTIONS", nullptr,
@@ -2946,21 +3025,24 @@ void cmGeneratorTarget::GetLinkOptions(std::vector<std::string>& result,
   const std::string SHELL{ "SHELL:" };
   const std::string LINKER_SHELL = LINKER + SHELL;
 
-  std::vector<std::string>::iterator entry;
+  std::vector<BT<std::string>>::iterator entry;
   while ((entry = std::find_if(result.begin(), result.end(),
-                               [&LINKER](const std::string& item) -> bool {
-                                 return item.compare(0, LINKER.length(),
-                                                     LINKER) == 0;
+                               [&LINKER](BT<std::string> const& item) -> bool {
+                                 return item.Value.compare(0, LINKER.length(),
+                                                           LINKER) == 0;
                                })) != result.end()) {
+    std::string value = std::move(entry->Value);
+    cmListFileBacktrace bt = std::move(entry->Backtrace);
+    entry = result.erase(entry);
+
     std::vector<std::string> linkerOptions;
-    if (entry->compare(0, LINKER_SHELL.length(), LINKER_SHELL) == 0) {
+    if (value.compare(0, LINKER_SHELL.length(), LINKER_SHELL) == 0) {
       cmSystemTools::ParseUnixCommandLine(
-        entry->c_str() + LINKER_SHELL.length(), linkerOptions);
+        value.c_str() + LINKER_SHELL.length(), linkerOptions);
     } else {
       linkerOptions =
-        cmSystemTools::tokenize(entry->substr(LINKER.length()), ",");
+        cmSystemTools::tokenize(value.substr(LINKER.length()), ",");
     }
-    entry = result.erase(entry);
 
     if (linkerOptions.empty() ||
         (linkerOptions.size() == 1 && linkerOptions.front().empty())) {
@@ -2976,56 +3058,64 @@ void cmGeneratorTarget::GetLinkOptions(std::vector<std::string>& result,
         cmake::FATAL_ERROR,
         "'SHELL:' prefix is not supported as part of 'LINKER:' arguments.",
         this->GetBacktrace());
-      return;
+      return result;
     }
 
+    std::vector<BT<std::string>> options;
     if (wrapperFlag.empty()) {
       // nothing specified, insert elements as is
-      result.insert(entry, linkerOptions.begin(), linkerOptions.end());
+      options.reserve(linkerOptions.size());
+      for (std::string& o : linkerOptions) {
+        options.emplace_back(std::move(o), bt);
+      }
     } else {
-      std::vector<std::string> options;
-
       if (!wrapperSep.empty()) {
         if (concatFlagAndArgs) {
           // insert flag elements except last one
-          options.insert(options.end(), wrapperFlag.begin(),
-                         wrapperFlag.end() - 1);
+          for (auto i = wrapperFlag.begin(); i != wrapperFlag.end() - 1; ++i) {
+            options.emplace_back(*i, bt);
+          }
           // concatenate last flag element and all LINKER list values
           // in one option
-          options.push_back(wrapperFlag.back() +
-                            cmJoin(linkerOptions, wrapperSep));
+          options.emplace_back(
+            wrapperFlag.back() + cmJoin(linkerOptions, wrapperSep), bt);
         } else {
-          options.insert(options.end(), wrapperFlag.begin(),
-                         wrapperFlag.end());
+          for (std::string const& i : wrapperFlag) {
+            options.emplace_back(i, bt);
+          }
           // concatenate all LINKER list values in one option
-          options.push_back(cmJoin(linkerOptions, wrapperSep));
+          options.emplace_back(cmJoin(linkerOptions, wrapperSep), bt);
         }
       } else {
         // prefix each element of LINKER list with wrapper
         if (concatFlagAndArgs) {
-          std::transform(
-            linkerOptions.begin(), linkerOptions.end(), linkerOptions.begin(),
-            [&wrapperFlag](const std::string& value) -> std::string {
-              return wrapperFlag.back() + value;
-            });
+          std::transform(linkerOptions.begin(), linkerOptions.end(),
+                         linkerOptions.begin(),
+                         [&wrapperFlag](std::string const& o) -> std::string {
+                           return wrapperFlag.back() + o;
+                         });
         }
-        for (const auto& value : linkerOptions) {
-          options.insert(options.end(), wrapperFlag.begin(),
-                         concatFlagAndArgs ? wrapperFlag.end() - 1
-                                           : wrapperFlag.end());
-          options.push_back(value);
+        for (std::string& o : linkerOptions) {
+          for (auto i = wrapperFlag.begin(),
+                    e = concatFlagAndArgs ? wrapperFlag.end() - 1
+                                          : wrapperFlag.end();
+               i != e; ++i) {
+            options.emplace_back(*i, bt);
+          }
+          options.emplace_back(std::move(o), bt);
         }
       }
-      result.insert(entry, options.begin(), options.end());
     }
+    result.insert(entry, options.begin(), options.end());
   }
+  return result;
 }
 
 namespace {
 void processStaticLibraryLinkOptions(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& options,
+  std::vector<BT<std::string>>& options,
   std::unordered_set<std::string>& uniqueOptions,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   std::string const& language)
@@ -3040,6 +3130,18 @@ void cmGeneratorTarget::GetStaticLibraryLinkOptions(
   std::vector<std::string>& result, const std::string& config,
   const std::string& language) const
 {
+  std::vector<BT<std::string>> tmp =
+    this->GetStaticLibraryLinkOptions(config, language);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetStaticLibraryLinkOptions(
+  std::string const& config, std::string const& language) const
+{
+  std::vector<BT<std::string>> result;
   std::vector<cmGeneratorTarget::TargetPropertyEntry*> entries;
   std::unordered_set<std::string> uniqueOptions;
 
@@ -3060,13 +3162,14 @@ void cmGeneratorTarget::GetStaticLibraryLinkOptions(
                                   &dagChecker, config, language);
 
   cmDeleteAll(entries);
+  return result;
 }
 
 namespace {
 void processLinkDirectories(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& directories,
+  std::vector<BT<std::string>>& directories,
   std::unordered_set<std::string>& uniqueDirectories,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   bool debugDirectories, std::string const& language)
@@ -3145,6 +3248,18 @@ void cmGeneratorTarget::GetLinkDirectories(std::vector<std::string>& result,
                                            const std::string& config,
                                            const std::string& language) const
 {
+  std::vector<BT<std::string>> tmp =
+    this->GetLinkDirectories(config, language);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetLinkDirectories(
+  std::string const& config, std::string const& language) const
+{
+  std::vector<BT<std::string>> result;
   std::unordered_set<std::string> uniqueDirectories;
 
   cmGeneratorExpressionDAGChecker dagChecker(this, "LINK_DIRECTORIES", nullptr,
@@ -3180,13 +3295,14 @@ void cmGeneratorTarget::GetLinkDirectories(std::vector<std::string>& result,
                          debugDirectories, language);
 
   cmDeleteAll(linkInterfaceLinkDirectoriesEntries);
+  return result;
 }
 
 namespace {
 void processLinkDepends(
   cmGeneratorTarget const* tgt,
   const std::vector<cmGeneratorTarget::TargetPropertyEntry*>& entries,
-  std::vector<std::string>& options,
+  std::vector<BT<std::string>>& options,
   std::unordered_set<std::string>& uniqueOptions,
   cmGeneratorExpressionDAGChecker* dagChecker, const std::string& config,
   std::string const& language)
@@ -3201,6 +3317,17 @@ void cmGeneratorTarget::GetLinkDepends(std::vector<std::string>& result,
                                        const std::string& config,
                                        const std::string& language) const
 {
+  std::vector<BT<std::string>> tmp = this->GetLinkDepends(config, language);
+  result.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    result.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmGeneratorTarget::GetLinkDepends(
+  std::string const& config, std::string const& language) const
+{
+  std::vector<BT<std::string>> result;
   std::vector<cmGeneratorTarget::TargetPropertyEntry*> linkDependsEntries;
   std::unordered_set<std::string> uniqueOptions;
   cmGeneratorExpressionDAGChecker dagChecker(this, "LINK_DEPENDS", nullptr,
@@ -3222,6 +3349,7 @@ void cmGeneratorTarget::GetLinkDepends(std::vector<std::string>& result,
                      &dagChecker, config, language);
 
   cmDeleteAll(linkDependsEntries);
+  return result;
 }
 
 void cmGeneratorTarget::ComputeTargetManifest(const std::string& config) const
@@ -3287,10 +3415,9 @@ void cmGeneratorTarget::ComputeTargetManifest(const std::string& config) const
 
 bool cmGeneratorTarget::ComputeCompileFeatures(std::string const& config) const
 {
-  std::vector<std::string> features;
-  this->GetCompileFeatures(features, config);
-  for (std::string const& f : features) {
-    if (!this->Makefile->AddRequiredTargetFeature(this->Target, f)) {
+  std::vector<BT<std::string>> features = this->GetCompileFeatures(config);
+  for (BT<std::string> const& f : features) {
+    if (!this->Makefile->AddRequiredTargetFeature(this->Target, f.Value)) {
       return false;
     }
   }
diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h
index 7de306e..4c32558 100644
--- a/Source/cmGeneratorTarget.h
+++ b/Source/cmGeneratorTarget.h
@@ -75,8 +75,8 @@ public:
   bool GetPropertyAsBool(const std::string& prop) const;
   void GetSourceFiles(std::vector<cmSourceFile*>& files,
                       const std::string& config) const;
-  void GetSourceFilesWithoutObjectLibraries(std::vector<cmSourceFile*>& files,
-                                            const std::string& config) const;
+  std::vector<BT<cmSourceFile*>> GetSourceFiles(
+    std::string const& config) const;
 
   /** Source file kinds (classifications).
       Generators use this to decide how to treat a source file.  */
@@ -99,7 +99,7 @@ public:
   /** A source file paired with a kind (classification).  */
   struct SourceAndKind
   {
-    cmSourceFile* Source;
+    BT<cmSourceFile*> Source;
     SourceKind Kind;
   };
 
@@ -412,34 +412,49 @@ public:
                                     std::string const& config) const;
 
   /** Get the include directories for this target.  */
-  std::vector<std::string> GetIncludeDirectories(
+  std::vector<BT<std::string>> GetIncludeDirectories(
     const std::string& config, const std::string& lang) const;
 
   void GetCompileOptions(std::vector<std::string>& result,
                          const std::string& config,
                          const std::string& language) const;
+  std::vector<BT<std::string>> GetCompileOptions(
+    std::string const& config, std::string const& language) const;
 
   void GetCompileFeatures(std::vector<std::string>& features,
                           const std::string& config) const;
+  std::vector<BT<std::string>> GetCompileFeatures(
+    std::string const& config) const;
 
   void GetCompileDefinitions(std::vector<std::string>& result,
                              const std::string& config,
                              const std::string& language) const;
+  std::vector<BT<std::string>> GetCompileDefinitions(
+    std::string const& config, std::string const& language) const;
 
   void GetLinkOptions(std::vector<std::string>& result,
                       const std::string& config,
                       const std::string& language) const;
+  std::vector<BT<std::string>> GetLinkOptions(
+    std::string const& config, std::string const& language) const;
+
   void GetStaticLibraryLinkOptions(std::vector<std::string>& result,
                                    const std::string& config,
                                    const std::string& language) const;
+  std::vector<BT<std::string>> GetStaticLibraryLinkOptions(
+    std::string const& config, std::string const& language) const;
 
   void GetLinkDirectories(std::vector<std::string>& result,
                           const std::string& config,
                           const std::string& language) const;
+  std::vector<BT<std::string>> GetLinkDirectories(
+    std::string const& config, std::string const& language) const;
 
   void GetLinkDepends(std::vector<std::string>& result,
                       const std::string& config,
                       const std::string& language) const;
+  std::vector<BT<std::string>> GetLinkDepends(
+    std::string const& config, std::string const& language) const;
 
   bool IsSystemIncludeDirectory(const std::string& dir,
                                 const std::string& config,
@@ -841,8 +856,12 @@ private:
                        cmListFileBacktrace const& bt,
                        std::vector<cmLinkItem>& items) const;
 
-  void GetSourceFiles(std::vector<std::string>& files,
-                      const std::string& config) const;
+  std::vector<BT<std::string>> GetSourceFilePaths(
+    std::string const& config) const;
+  std::vector<BT<cmSourceFile*>> GetSourceFilesWithoutObjectLibraries(
+    std::string const& config) const;
+  void GetSourceFilesWithoutObjectLibraries(std::vector<cmSourceFile*>& files,
+                                            const std::string& config) const;
 
   struct HeadToLinkImplementationMap
     : public std::map<cmGeneratorTarget const*, cmOptionalLinkImplementation>
diff --git a/Source/cmInstallCommand.cxx b/Source/cmInstallCommand.cxx
index 6e33cf7..fbc5278 100644
--- a/Source/cmInstallCommand.cxx
+++ b/Source/cmInstallCommand.cxx
@@ -20,6 +20,7 @@
 #include "cmInstallGenerator.h"
 #include "cmInstallScriptGenerator.h"
 #include "cmInstallTargetGenerator.h"
+#include "cmListFileCache.h"
 #include "cmMakefile.h"
 #include "cmPolicies.h"
 #include "cmStateTypes.h"
@@ -32,7 +33,8 @@ class cmExecutionStatus;
 
 static cmInstallTargetGenerator* CreateInstallTargetGenerator(
   cmTarget& target, const cmInstallCommandArguments& args, bool impLib,
-  bool forceOpt = false, bool namelink = false)
+  cmListFileBacktrace const& backtrace, bool forceOpt = false,
+  bool namelink = false)
 {
   cmInstallGenerator::MessageLevel message =
     cmInstallGenerator::SelectMessageLevel(target.GetMakefile());
@@ -42,7 +44,8 @@ static cmInstallTargetGenerator* CreateInstallTargetGenerator(
   return new cmInstallTargetGenerator(
     target.GetName(), args.GetDestination().c_str(), impLib,
     args.GetPermissions().c_str(), args.GetConfigurations(), component,
-    message, args.GetExcludeFromAll(), args.GetOptional() || forceOpt);
+    message, args.GetExcludeFromAll(), args.GetOptional() || forceOpt,
+    backtrace);
 }
 
 static cmInstallFilesGenerator* CreateInstallFilesGenerator(
@@ -435,13 +438,13 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
           // This is a DLL platform.
           if (!archiveArgs.GetDestination().empty()) {
             // The import library uses the ARCHIVE properties.
-            archiveGenerator =
-              CreateInstallTargetGenerator(target, archiveArgs, true);
+            archiveGenerator = CreateInstallTargetGenerator(
+              target, archiveArgs, true, this->Makefile->GetBacktrace());
           }
           if (!runtimeArgs.GetDestination().empty()) {
             // The DLL uses the RUNTIME properties.
-            runtimeGenerator =
-              CreateInstallTargetGenerator(target, runtimeArgs, false);
+            runtimeGenerator = CreateInstallTargetGenerator(
+              target, runtimeArgs, false, this->Makefile->GetBacktrace());
           }
           if ((archiveGenerator == nullptr) && (runtimeGenerator == nullptr)) {
             this->SetError("Library TARGETS given no DESTINATION!");
@@ -459,8 +462,8 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
 
             // Use the FRAMEWORK properties.
             if (!frameworkArgs.GetDestination().empty()) {
-              frameworkGenerator =
-                CreateInstallTargetGenerator(target, frameworkArgs, false);
+              frameworkGenerator = CreateInstallTargetGenerator(
+                target, frameworkArgs, false, this->Makefile->GetBacktrace());
             } else {
               std::ostringstream e;
               e << "TARGETS given no FRAMEWORK DESTINATION for shared library "
@@ -473,14 +476,15 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
             // The shared library uses the LIBRARY properties.
             if (!libraryArgs.GetDestination().empty()) {
               if (namelinkMode != cmInstallTargetGenerator::NamelinkModeOnly) {
-                libraryGenerator =
-                  CreateInstallTargetGenerator(target, libraryArgs, false);
+                libraryGenerator = CreateInstallTargetGenerator(
+                  target, libraryArgs, false, this->Makefile->GetBacktrace());
                 libraryGenerator->SetNamelinkMode(
                   cmInstallTargetGenerator::NamelinkModeSkip);
               }
               if (namelinkMode != cmInstallTargetGenerator::NamelinkModeSkip) {
                 namelinkGenerator = CreateInstallTargetGenerator(
-                  target, libraryArgs, false, false, true);
+                  target, libraryArgs, false, this->Makefile->GetBacktrace(),
+                  false, true);
                 namelinkGenerator->SetNamelinkMode(
                   cmInstallTargetGenerator::NamelinkModeOnly);
               }
@@ -508,8 +512,8 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
 
           // Use the FRAMEWORK properties.
           if (!frameworkArgs.GetDestination().empty()) {
-            frameworkGenerator =
-              CreateInstallTargetGenerator(target, frameworkArgs, false);
+            frameworkGenerator = CreateInstallTargetGenerator(
+              target, frameworkArgs, false, this->Makefile->GetBacktrace());
           } else {
             std::ostringstream e;
             e << "TARGETS given no FRAMEWORK DESTINATION for static library "
@@ -521,8 +525,8 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
         } else {
           // Static libraries use ARCHIVE properties.
           if (!archiveArgs.GetDestination().empty()) {
-            archiveGenerator =
-              CreateInstallTargetGenerator(target, archiveArgs, false);
+            archiveGenerator = CreateInstallTargetGenerator(
+              target, archiveArgs, false, this->Makefile->GetBacktrace());
           } else {
             std::ostringstream e;
             e << "TARGETS given no ARCHIVE DESTINATION for static library "
@@ -536,8 +540,8 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
       case cmStateEnums::MODULE_LIBRARY: {
         // Modules use LIBRARY properties.
         if (!libraryArgs.GetDestination().empty()) {
-          libraryGenerator =
-            CreateInstallTargetGenerator(target, libraryArgs, false);
+          libraryGenerator = CreateInstallTargetGenerator(
+            target, libraryArgs, false, this->Makefile->GetBacktrace());
           libraryGenerator->SetNamelinkMode(namelinkMode);
           namelinkOnly =
             (namelinkMode == cmInstallTargetGenerator::NamelinkModeOnly);
@@ -563,8 +567,8 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
             return false;
           }
 
-          objectGenerator =
-            CreateInstallTargetGenerator(target, objectArgs, false);
+          objectGenerator = CreateInstallTargetGenerator(
+            target, objectArgs, false, this->Makefile->GetBacktrace());
         } else {
           // Installing an OBJECT library without a destination transforms
           // it to an INTERFACE library.  It installs no files but can be
@@ -575,15 +579,15 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
         if (target.IsAppBundleOnApple()) {
           // Application bundles use the BUNDLE properties.
           if (!bundleArgs.GetDestination().empty()) {
-            bundleGenerator =
-              CreateInstallTargetGenerator(target, bundleArgs, false);
+            bundleGenerator = CreateInstallTargetGenerator(
+              target, bundleArgs, false, this->Makefile->GetBacktrace());
           } else if (!runtimeArgs.GetDestination().empty()) {
             bool failure = false;
             if (this->CheckCMP0006(failure)) {
               // For CMake 2.4 compatibility fallback to the RUNTIME
               // properties.
-              bundleGenerator =
-                CreateInstallTargetGenerator(target, runtimeArgs, false);
+              bundleGenerator = CreateInstallTargetGenerator(
+                target, runtimeArgs, false, this->Makefile->GetBacktrace());
             } else if (failure) {
               return false;
             }
@@ -599,8 +603,8 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
         } else {
           // Executables use the RUNTIME properties.
           if (!runtimeArgs.GetDestination().empty()) {
-            runtimeGenerator =
-              CreateInstallTargetGenerator(target, runtimeArgs, false);
+            runtimeGenerator = CreateInstallTargetGenerator(
+              target, runtimeArgs, false, this->Makefile->GetBacktrace());
           } else {
             std::ostringstream e;
             e << "TARGETS given no RUNTIME DESTINATION for executable "
@@ -617,8 +621,8 @@ bool cmInstallCommand::HandleTargetsMode(std::vector<std::string> const& args)
         if (dll_platform && !archiveArgs.GetDestination().empty() &&
             target.IsExecutableWithExports()) {
           // The import library uses the ARCHIVE properties.
-          archiveGenerator =
-            CreateInstallTargetGenerator(target, archiveArgs, true, true);
+          archiveGenerator = CreateInstallTargetGenerator(
+            target, archiveArgs, true, this->Makefile->GetBacktrace(), true);
         }
       } break;
       case cmStateEnums::INTERFACE_LIBRARY:
diff --git a/Source/cmInstallTargetGenerator.cxx b/Source/cmInstallTargetGenerator.cxx
index 8b8f79b..ea3d522 100644
--- a/Source/cmInstallTargetGenerator.cxx
+++ b/Source/cmInstallTargetGenerator.cxx
@@ -24,7 +24,7 @@ cmInstallTargetGenerator::cmInstallTargetGenerator(
   const std::string& targetName, const char* dest, bool implib,
   const char* file_permissions, std::vector<std::string> const& configurations,
   const char* component, MessageLevel message, bool exclude_from_all,
-  bool optional)
+  bool optional, cmListFileBacktrace const& backtrace)
   : cmInstallGenerator(dest, configurations, component, message,
                        exclude_from_all)
   , TargetName(targetName)
@@ -32,6 +32,7 @@ cmInstallTargetGenerator::cmInstallTargetGenerator(
   , FilePermissions(file_permissions)
   , ImportLibrary(implib)
   , Optional(optional)
+  , Backtrace(backtrace)
 {
   this->ActionsPerConfig = true;
   this->NamelinkMode = NamelinkModeNone;
diff --git a/Source/cmInstallTargetGenerator.h b/Source/cmInstallTargetGenerator.h
index f6bec20..bf625d1 100644
--- a/Source/cmInstallTargetGenerator.h
+++ b/Source/cmInstallTargetGenerator.h
@@ -6,6 +6,7 @@
 #include "cmConfigure.h" // IWYU pragma: keep
 
 #include "cmInstallGenerator.h"
+#include "cmListFileCache.h"
 #include "cmScriptGenerator.h"
 
 #include <iosfwd>
@@ -21,11 +22,12 @@ class cmLocalGenerator;
 class cmInstallTargetGenerator : public cmInstallGenerator
 {
 public:
-  cmInstallTargetGenerator(std::string const& targetName, const char* dest,
-                           bool implib, const char* file_permissions,
-                           std::vector<std::string> const& configurations,
-                           const char* component, MessageLevel message,
-                           bool exclude_from_all, bool optional);
+  cmInstallTargetGenerator(
+    std::string const& targetName, const char* dest, bool implib,
+    const char* file_permissions,
+    std::vector<std::string> const& configurations, const char* component,
+    MessageLevel message, bool exclude_from_all, bool optional,
+    cmListFileBacktrace const& backtrace = cmListFileBacktrace());
   ~cmInstallTargetGenerator() override;
 
   /** Select the policy for installing shared library linkable name
@@ -64,6 +66,8 @@ public:
 
   std::string GetDestination(std::string const& config) const;
 
+  cmListFileBacktrace const& GetBacktrace() const { return this->Backtrace; }
+
 protected:
   void GenerateScript(std::ostream& os) override;
   void GenerateScriptForConfig(std::ostream& os, const std::string& config,
@@ -108,6 +112,7 @@ protected:
   NamelinkModeType NamelinkMode;
   bool ImportLibrary;
   bool Optional;
+  cmListFileBacktrace Backtrace;
 };
 
 #endif
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index 941d787..7beeb71 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -202,9 +202,10 @@ void cmLocalGenerator::ComputeObjectMaxPath()
   this->ObjectMaxPathViolations.clear();
 }
 
-void cmLocalGenerator::MoveSystemIncludesToEnd(
-  std::vector<std::string>& includeDirs, const std::string& config,
-  const std::string& lang, const cmGeneratorTarget* target) const
+static void MoveSystemIncludesToEnd(std::vector<std::string>& includeDirs,
+                                    const std::string& config,
+                                    const std::string& lang,
+                                    const cmGeneratorTarget* target)
 {
   if (!target) {
     return;
@@ -218,6 +219,24 @@ void cmLocalGenerator::MoveSystemIncludesToEnd(
     });
 }
 
+static void MoveSystemIncludesToEnd(std::vector<BT<std::string>>& includeDirs,
+                                    const std::string& config,
+                                    const std::string& lang,
+                                    const cmGeneratorTarget* target)
+{
+  if (!target) {
+    return;
+  }
+
+  std::stable_sort(includeDirs.begin(), includeDirs.end(),
+                   [target, &config, &lang](BT<std::string> const& a,
+                                            BT<std::string> const& b) {
+                     return !target->IsSystemIncludeDirectory(a.Value, config,
+                                                              lang) &&
+                       target->IsSystemIncludeDirectory(b.Value, config, lang);
+                   });
+}
+
 void cmLocalGenerator::TraceDependencies()
 {
   std::vector<std::string> configs;
@@ -707,7 +726,7 @@ std::string cmLocalGenerator::GetIncludeFlags(
   }
 
   std::vector<std::string> includes = includeDirs;
-  this->MoveSystemIncludesToEnd(includes, config, lang, target);
+  MoveSystemIncludesToEnd(includes, config, lang, target);
 
   OutputFormat shellFormat = forResponseFile ? RESPONSE : SHELL;
   std::ostringstream includeFlags;
@@ -868,6 +887,21 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
                                              bool stripImplicitDirs,
                                              bool appendAllImplicitDirs) const
 {
+  std::vector<BT<std::string>> tmp = this->GetIncludeDirectories(
+    target, lang, config, stripImplicitDirs, appendAllImplicitDirs);
+  dirs.reserve(tmp.size());
+  for (BT<std::string>& v : tmp) {
+    dirs.emplace_back(std::move(v.Value));
+  }
+}
+
+std::vector<BT<std::string>> cmLocalGenerator::GetIncludeDirectories(
+  cmGeneratorTarget const* target, std::string const& lang,
+  std::string const& config, bool stripImplicitDirs,
+  bool appendAllImplicitDirs) const
+{
+  std::vector<BT<std::string>> result;
+
   // Do not repeat an include path.
   std::set<std::string> emitted;
 
@@ -884,7 +918,7 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
       std::string binDir =
         this->StateSnapshot.GetDirectory().GetCurrentBinary();
       if (emitted.insert(binDir).second) {
-        dirs.push_back(std::move(binDir));
+        result.emplace_back(std::move(binDir));
       }
     }
     // Current source directory
@@ -892,13 +926,13 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
       std::string srcDir =
         this->StateSnapshot.GetDirectory().GetCurrentSource();
       if (emitted.insert(srcDir).second) {
-        dirs.push_back(std::move(srcDir));
+        result.emplace_back(std::move(srcDir));
       }
     }
   }
 
   if (!target) {
-    return;
+    return result;
   }
 
   // Implicit include directories
@@ -931,7 +965,7 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
   }
 
   // Get the target-specific include directories.
-  std::vector<std::string> userDirs =
+  std::vector<BT<std::string>> userDirs =
     target->GetIncludeDirectories(config, lang);
 
   // Support putting all the in-project include directories first if
@@ -939,44 +973,44 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
   if (this->Makefile->IsOn("CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE")) {
     std::string const &topSourceDir = this->GetState()->GetSourceDirectory(),
                       &topBinaryDir = this->GetState()->GetBinaryDirectory();
-    for (std::string const& i : userDirs) {
+    for (BT<std::string> const& i : userDirs) {
       // Emit this directory only if it is a subdirectory of the
       // top-level source or binary tree.
-      if (cmSystemTools::ComparePath(i, topSourceDir) ||
-          cmSystemTools::ComparePath(i, topBinaryDir) ||
-          cmSystemTools::IsSubDirectory(i, topSourceDir) ||
-          cmSystemTools::IsSubDirectory(i, topBinaryDir)) {
-        if (emitted.insert(i).second) {
-          dirs.push_back(i);
+      if (cmSystemTools::ComparePath(i.Value, topSourceDir) ||
+          cmSystemTools::ComparePath(i.Value, topBinaryDir) ||
+          cmSystemTools::IsSubDirectory(i.Value, topSourceDir) ||
+          cmSystemTools::IsSubDirectory(i.Value, topBinaryDir)) {
+        if (emitted.insert(i.Value).second) {
+          result.push_back(i);
         }
       }
     }
   }
 
   // Construct the final ordered include directory list.
-  for (std::string const& i : userDirs) {
-    if (emitted.insert(i).second) {
-      dirs.push_back(i);
+  for (BT<std::string> const& i : userDirs) {
+    if (emitted.insert(i.Value).second) {
+      result.push_back(i);
     }
   }
 
-  this->MoveSystemIncludesToEnd(dirs, config, lang, target);
+  MoveSystemIncludesToEnd(result, config, lang, target);
 
   // Add standard include directories for this language.
   {
-    std::vector<std::string>::size_type const before = userDirs.size();
+    std::vector<std::string> userStandardDirs;
     {
       std::string key = "CMAKE_";
       key += lang;
       key += "_STANDARD_INCLUDE_DIRECTORIES";
       std::string const value = this->Makefile->GetSafeDefinition(key);
-      cmSystemTools::ExpandListArgument(value, userDirs);
+      cmSystemTools::ExpandListArgument(value, userStandardDirs);
     }
-    for (std::vector<std::string>::iterator i = userDirs.begin() + before,
-                                            ie = userDirs.end();
-         i != ie; ++i) {
-      cmSystemTools::ConvertToUnixSlashes(*i);
-      dirs.push_back(*i);
+    userDirs.reserve(userDirs.size() + userStandardDirs.size());
+    for (std::string& d : userStandardDirs) {
+      cmSystemTools::ConvertToUnixSlashes(d);
+      result.emplace_back(d);
+      userDirs.emplace_back(std::move(d));
     }
   }
 
@@ -984,18 +1018,20 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
     // Append only implicit directories that were requested by the user
     for (std::string const& i : implicitDirs) {
       if (std::find(userDirs.begin(), userDirs.end(), i) != userDirs.end()) {
-        dirs.push_back(i);
+        result.emplace_back(i);
       }
     }
     // Append remaining implicit directories on demand
     if (appendAllImplicitDirs) {
       for (std::string const& i : implicitDirs) {
-        if (std::find(dirs.begin(), dirs.end(), i) == dirs.end()) {
-          dirs.push_back(i);
+        if (std::find(result.begin(), result.end(), i) == result.end()) {
+          result.emplace_back(i);
         }
       }
     }
   }
+
+  return result;
 }
 
 void cmLocalGenerator::GetStaticLibraryFlags(std::string& flags,
@@ -1252,15 +1288,29 @@ void cmLocalGenerator::GetTargetDefines(cmGeneratorTarget const* target,
                                         std::string const& lang,
                                         std::set<std::string>& defines) const
 {
+  std::set<BT<std::string>> tmp = this->GetTargetDefines(target, config, lang);
+  for (BT<std::string> const& v : tmp) {
+    defines.emplace(v.Value);
+  }
+}
+
+std::set<BT<std::string>> cmLocalGenerator::GetTargetDefines(
+  cmGeneratorTarget const* target, std::string const& config,
+  std::string const& lang) const
+{
+  std::set<BT<std::string>> defines;
+
   // Add the export symbol definition for shared library objects.
   if (const std::string* exportMacro = target->GetExportMacro()) {
     this->AppendDefines(defines, *exportMacro);
   }
 
   // Add preprocessor definitions for this target and configuration.
-  std::vector<std::string> targetDefines;
-  target->GetCompileDefinitions(targetDefines, config, lang);
+  std::vector<BT<std::string>> targetDefines =
+    target->GetCompileDefinitions(config, lang);
   this->AppendDefines(defines, targetDefines);
+
+  return defines;
 }
 
 std::string cmLocalGenerator::GetTargetFortranFlags(
@@ -2060,24 +2110,32 @@ void cmLocalGenerator::AppendIncludeDirectories(
 void cmLocalGenerator::AppendDefines(std::set<std::string>& defines,
                                      const char* defines_list) const
 {
+  std::set<BT<std::string>> tmp;
+  this->AppendDefines(tmp, ExpandListWithBacktrace(defines_list));
+  for (BT<std::string> const& i : tmp) {
+    defines.emplace(i.Value);
+  }
+}
+
+void cmLocalGenerator::AppendDefines(std::set<BT<std::string>>& defines,
+                                     const char* defines_list) const
+{
   // Short-circuit if there are no definitions.
   if (!defines_list) {
     return;
   }
 
   // Expand the list of definitions.
-  std::vector<std::string> defines_vec;
-  cmSystemTools::ExpandListArgument(defines_list, defines_vec);
-  this->AppendDefines(defines, defines_vec);
+  this->AppendDefines(defines, ExpandListWithBacktrace(defines_list));
 }
 
 void cmLocalGenerator::AppendDefines(
-  std::set<std::string>& defines,
-  const std::vector<std::string>& defines_vec) const
+  std::set<BT<std::string>>& defines,
+  const std::vector<BT<std::string>>& defines_vec) const
 {
-  for (std::string const& d : defines_vec) {
+  for (BT<std::string> const& d : defines_vec) {
     // Skip unsupported definitions.
-    if (!this->CheckDefinition(d)) {
+    if (!this->CheckDefinition(d.Value)) {
       continue;
     }
     defines.insert(d);
diff --git a/Source/cmLocalGenerator.h b/Source/cmLocalGenerator.h
index f8d70ca..95a8a6a 100644
--- a/Source/cmLocalGenerator.h
+++ b/Source/cmLocalGenerator.h
@@ -175,8 +175,15 @@ public:
   {
     this->AppendDefines(defines, defines_list.c_str());
   }
-  void AppendDefines(std::set<std::string>& defines,
-                     const std::vector<std::string>& defines_vec) const;
+  void AppendDefines(std::set<BT<std::string>>& defines,
+                     const char* defines_list) const;
+  void AppendDefines(std::set<BT<std::string>>& defines,
+                     std::string const& defines_list) const
+  {
+    this->AppendDefines(defines, defines_list.c_str());
+  }
+  void AppendDefines(std::set<BT<std::string>>& defines,
+                     const std::vector<BT<std::string>>& defines_vec) const;
 
   /**
    * Encode a list of compile options for the compiler
@@ -249,6 +256,10 @@ public:
                              const std::string& config = "",
                              bool stripImplicitDirs = true,
                              bool appendAllImplicitDirs = false) const;
+  std::vector<BT<std::string>> GetIncludeDirectories(
+    cmGeneratorTarget const* target, std::string const& lang = "C",
+    std::string const& config = "", bool stripImplicitDirs = true,
+    bool appendAllImplicitDirs = false) const;
   void AddCompileOptions(std::string& flags, cmGeneratorTarget* target,
                          const std::string& lang, const std::string& config);
 
@@ -332,6 +343,9 @@ public:
   void GetTargetDefines(cmGeneratorTarget const* target,
                         std::string const& config, std::string const& lang,
                         std::set<std::string>& defines) const;
+  std::set<BT<std::string>> GetTargetDefines(cmGeneratorTarget const* target,
+                                             std::string const& config,
+                                             std::string const& lang) const;
   void GetTargetCompileFlags(cmGeneratorTarget* target,
                              std::string const& config,
                              std::string const& lang, std::string& flags);
@@ -414,10 +428,6 @@ private:
                                    int targetType);
 
   void ComputeObjectMaxPath();
-  void MoveSystemIncludesToEnd(std::vector<std::string>& includeDirs,
-                               const std::string& config,
-                               const std::string& lang,
-                               cmGeneratorTarget const* target) const;
 };
 
 #if defined(CMAKE_BUILD_WITH_CMAKE)