Source: Reduce string allocations, part 3

Source/cmCMakeHostSystemInformationCommand.cxx

@@ -500,7 +500,7 @@ cm::optional<std::string> GetDistribValue(
     std::string vars;
     for (auto const& kv : *os_release) {
       auto cmake_var_name = cmStrCat(variable, '_', kv.first);
-      vars += DELIM[!vars.empty()] + cmake_var_name;
+      vars = cmStrCat(vars, DELIM[!vars.empty()], cmake_var_name);
       makefile.AddDefinition(cmake_var_name, kv.second);
     }
     return cm::optional<std::string>(std::move(vars));

Source/cmCMakePkgConfigCommand.cxx

@@ -184,7 +184,7 @@ std::vector<std::string> GetPkgConfSysCflags(cmMakefile& mf)
       std::string tmp;
       cmSystemTools::GetEnv(var, tmp);
       if (!tmp.empty()) {
-        paths += ";" + tmp;
+        paths = cmStrCat(paths, ';', tmp);
       }
     }
   };

Source/cmCTest.cxx

@@ -707,7 +707,7 @@ bool cmCTest::OpenOutputFile(std::string const& path, std::string const& name,
 {
   std::string testingDir = this->Impl->BinaryDir + "/Testing";
   if (!path.empty()) {
-    testingDir += "/" + path;
+    testingDir = cmStrCat(testingDir, '/', path);
   }
   if (cmSystemTools::FileExists(testingDir)) {
     if (!cmSystemTools::FileIsDirectory(testingDir)) {

Source/cmCoreTryCompile.cxx

@@ -1082,8 +1082,8 @@ cm::optional<cmTryCompileResult> cmCoreTryCompile::TryCompileCode(
       if (testLangs.find(LinkerLanguage) == testLangs.end()) {
         this->Makefile->IssueMessage(
           MessageType::FATAL_ERROR,
-          "Linker language '" + LinkerLanguage +
-            "' must be enabled in project(LANGUAGES).");
+          cmStrCat("Linker language '", LinkerLanguage,
+                   "' must be enabled in project(LANGUAGES)."));
       }
 
       fprintf(fout, "set_property(TARGET %s PROPERTY LINKER_LANGUAGE %s)\n",

Source/cmDependsFortran.cxx

@@ -37,7 +37,7 @@ static void cmFortranModuleAppendUpperLower(std::string const& mod,
   }
   std::string const& name = mod.substr(0, mod.size() - ext_len);
   std::string const& ext = mod.substr(mod.size() - ext_len);
-  mod_upper += cmSystemTools::UpperCase(name) + ext;
+  mod_upper = cmStrCat(mod_upper, cmSystemTools::UpperCase(name), ext);
   mod_lower += mod;
 }
 

Source/cmDiscoverTestsCommand.cxx

@@ -18,6 +18,7 @@
 #include "cmLocalGenerator.h"
 #include "cmMakefile.h"
 #include "cmScriptGenerator.h"
+#include "cmStringAlgorithms.h"
 #include "cmTestDiscovery.h"
 #include "cmTestGenerator.h"
 
@@ -106,7 +107,8 @@ bool cmDiscoverTestsCommand(std::vector<std::string> const& args,
   }
 
   if (!unparsed.empty()) {
-    status.SetError(" given unknown argument \"" + unparsed.front() + "\".");
+    status.SetError(
+      cmStrCat(" given unknown argument \"", unparsed.front(), "\"."));
     return false;
   }
 

Source/cmExecuteProcessCommand.cxx

@@ -135,8 +135,8 @@ bool cmExecuteProcessCommand(std::vector<std::string> const& args,
     return true;
   }
   if (!unparsedArguments.empty()) {
-    status.SetError(" given unknown argument \"" + unparsedArguments.front() +
-                    "\".");
+    status.SetError(cmStrCat(" given unknown argument \"",
+                             unparsedArguments.front(), "\"."));
     return false;
   }
 
@@ -159,8 +159,8 @@ bool cmExecuteProcessCommand(std::vector<std::string> const& args,
   }
 
   if (!status.GetMakefile().CanIWriteThisFile(outputFilename)) {
-    status.SetError("attempted to output into a file: " + outputFilename +
-                    " into a source directory.");
+    status.SetError(cmStrCat("attempted to output into a file: ",
+                             outputFilename, " into a source directory."));
     cmSystemTools::SetFatalErrorOccurred();
     return false;
   }

Source/cmExportBuildCMakeConfigGenerator.cxx

@@ -41,7 +41,8 @@ bool cmExportBuildCMakeConfigGenerator::GenerateMainFile(std::ostream& os)
     std::string sep;
     bool generatedInterfaceRequired = false;
     auto visitor = [&](cmGeneratorTarget const* te) {
-      expectedTargets += sep + this->Namespace + te->GetExportName();
+      expectedTargets =
+        cmStrCat(expectedTargets, sep, this->Namespace, te->GetExportName());
       sep = " ";
 
       generatedInterfaceRequired |=

Source/cmExportCommand.cxx

@@ -507,8 +507,8 @@ static bool HandleSetupMode(std::vector<std::string> const& args,
   SetupArguments arguments = parser.Parse(args, &unknownArgs);
 
   if (!unknownArgs.empty()) {
-    status.SetError("SETUP given unknown argument: \"" + unknownArgs.front() +
-                    "\".");
+    status.SetError(cmStrCat("SETUP given unknown argument: \"",
+                             unknownArgs.front(), "\"."));
     return false;
   }
 

Source/cmExportFileGenerator.cxx

@@ -462,7 +462,7 @@ void cmExportFileGenerator::ResolveTargetsInGeneratorExpressions(
     } else {
       this->ResolveTargetsInGeneratorExpression(li, target, lg);
     }
-    input += sep + li;
+    input = cmStrCat(input, sep, li);
     sep = ";";
   }
 }

Source/cmExportInstallCMakeConfigGenerator.cxx

@@ -49,7 +49,8 @@ bool cmExportInstallCMakeConfigGenerator::GenerateMainFile(std::ostream& os)
     std::string sep;
     auto visitor = [&](cmTargetExport const* te) {
       allTargets.push_back(te);
-      expectedTargets += sep + this->Namespace + te->Target->GetExportName();
+      expectedTargets = cmStrCat(expectedTargets, sep, this->Namespace,
+                                 te->Target->GetExportName());
       sep = " ";
     };
 

Source/cmExportInstallFileGenerator.cxx

@@ -605,7 +605,7 @@ void cmExportInstallFileGenerator::PopulateIncludeDirectoriesInterface(
 
   std::string includes = (input ? *input : "");
   char const* const sep = input ? ";" : "";
-  includes += sep + exportDirs;
+  includes = cmStrCat(includes, sep, exportDirs);
   std::string prepro = cmGeneratorExpression::Preprocess(
     includes, preprocessRule, this->GetImportPrefixWithSlash());
   if (!prepro.empty()) {

Source/cmFastbuildNormalTargetGenerator.cxx

@@ -573,8 +573,8 @@ void cmFastbuildNormalTargetGenerator::ComputePCH(
 
   // Reuse compiler options for PCH options.
   node.PCHOptions += origCompileOptions;
-  if (this->Makefile->GetSafeDefinition("CMAKE_" + language +
-                                        "_COMPILER_ID") == "MSVC") {
+  if (this->Makefile->GetSafeDefinition(
+        cmStrCat("CMAKE_", language, "_COMPILER_ID")) == "MSVC") {
     cmSystemTools::ReplaceString(node.PCHOptions,
                                  FASTBUILD_2_INPUT_PLACEHOLDER,
                                  FASTBUILD_3_INPUT_PLACEHOLDER);
@@ -1801,8 +1801,9 @@ void cmFastbuildNormalTargetGenerator::AppendExternalObject(
     else if (target) {
       if (!linkedDeps.emplace(objLibName + FASTBUILD_OBJECTS_ALIAS_POSTFIX)
              .second) {
-        LogMessage("Object Target: " + objLibName +
-                   FASTBUILD_OBJECTS_ALIAS_POSTFIX " already linked");
+        LogMessage(cmStrCat("Object Target: ", objLibName,
+                            FASTBUILD_OBJECTS_ALIAS_POSTFIX
+                            " already linked"));
         continue;
       }
       linkerNode.LibrarianAdditionalInputs.emplace_back(
@@ -1890,8 +1891,8 @@ void cmFastbuildNormalTargetGenerator::AppendTargetDep(
     // Skip exported objects.
     // Tested in "ExportImport" test.
     if (depType == cm::TargetType::OBJECT_LIBRARY) {
-      LogMessage("target : " + item.Target->GetName() +
-                 " already linked... Skipping");
+      LogMessage(cmStrCat("target : ", item.Target->GetName(),
+                          " already linked... Skipping"));
       return;
     }
     // Tested in "ExportImport" test.

Source/cmFastbuildTargetGenerator.cxx

@@ -157,7 +157,8 @@ std::string cmFastbuildTargetGenerator::GetCustomCommandTargetName(
   extras += std::to_string(static_cast<int>(step));
 
   cmCryptoHash hash(cmCryptoHash::AlgoSHA256);
-  targetName += "-" + hash.HashString(extras).substr(0, 14);
+  targetName =
+    cmStrCat(targetName, '-', hash.HashString(extras).substr(0, 14));
 
   return targetName;
 }
@@ -674,8 +675,8 @@ FastbuildExecNodes cmFastbuildTargetGenerator::GenerateCommands(
                execNode.PreBuildDependencies);
     for (auto const& util : ccg.GetUtilities()) {
       auto const& utilTargetName = util.Value.first;
-      LogMessage("Util: " + utilTargetName +
-                 ", cross: " + std::to_string(util.Value.second));
+      LogMessage(cmStrCat("Util: ", utilTargetName,
+                          ", cross: ", std::to_string(util.Value.second)));
       auto* const target = this->Makefile->FindTargetToUse(utilTargetName);
 
       if (target && target->IsImported()) {

Source/cmFastbuildUtilityTargetGenerator.cxx

@@ -75,8 +75,8 @@ void cmFastbuildUtilityTargetGenerator::Generate()
     if (target && target->GetType() == cm::TargetType::INTERFACE_LIBRARY) {
       for (auto const& dep : target->GetUtilities()) {
         auto const& depName = this->ConvertToFastbuildPath(dep.Value.first);
-        LogMessage("Transitively propagating iface dep: " + depName +
-                   ", is cross: " + std::to_string(dep.Value.second));
+        LogMessage(cmStrCat("Transitively propagating iface dep: ", depName,
+                            ", is cross: ", std::to_string(dep.Value.second)));
         nonImportedUtils.emplace_back(depName);
         addUtilDepToTarget(this->ConvertToFastbuildPath(depName));
       }
@@ -117,8 +117,8 @@ void cmFastbuildUtilityTargetGenerator::Generate()
   for (auto& exec : GenerateCommands(FastbuildBuildStep::REST).Nodes) {
     addUtilDepToTarget(exec.Name);
     for (auto const& dep : TargetDirectDependencies) {
-      LogMessage("Direct dep " + dep->GetName() +
-                 "-all propagating to CC: " + exec.Name);
+      LogMessage(cmStrCat("Direct dep ", dep->GetName(),
+                          "-all propagating to CC: ", exec.Name));
       // All custom commands from within the target must be executed AFTER all
       // the target's deps.
       exec.PreBuildDependencies.emplace(dep->GetName());

Source/cmFileAPICodemodel.cxx

@@ -316,7 +316,7 @@ std::string TargetId(cmGeneratorTarget const* gt, std::string const& topBuild)
     topBuild, gt->GetLocalGenerator()->GetCurrentBinaryDirectory());
   std::string hash = hasher.HashString(path);
   hash.resize(20, '0');
-  return gt->GetName() + CMAKE_DIRECTORY_ID_SEP + hash;
+  return cmStrCat(gt->GetName(), CMAKE_DIRECTORY_ID_SEP, hash);
 }
 
 struct CompileData
@@ -755,7 +755,7 @@ Json::Value CodemodelConfig::DumpTarget(cmGeneratorTarget* gt,
   std::replace(safeTargetName.begin(), safeTargetName.end(), ':', '_');
   std::string prefix = "target-" + safeTargetName;
   if (!this->Config.empty()) {
-    prefix += "-" + this->Config;
+    prefix = cmStrCat(prefix, '-', this->Config);
   }
   Json::Value target = this->FileAPI.MaybeJsonFile(t.Dump(), prefix);
   target["name"] = gt->GetName();
@@ -856,7 +856,7 @@ Json::Value CodemodelConfig::DumpDirectoryObject(Directory& d)
     }
   }
   if (!this->Config.empty()) {
-    prefix += "-" + this->Config;
+    prefix = cmStrCat(prefix, '-', this->Config);
   }
 
   DirectoryObject dir(d.LocalGenerator, this->VersionMajor, this->VersionMinor,

Source/cmFileCommand.cxx

@@ -755,7 +755,7 @@ bool HandleGlobImpl(std::vector<std::string> const& args, bool recurse,
         expr = status.GetMakefile().GetCurrentSourceDirectory();
         // Handle script mode
         if (!expr.empty()) {
-          expr += "/" + *i;
+          expr = cmStrCat(expr, '/', *i);
         } else {
           expr = *i;
         }
@@ -2126,10 +2126,10 @@ bool HandleDownloadCommand(std::vector<std::string> const& args,
     std::string dir = cmSystemTools::GetFilenamePath(file);
     if (!dir.empty() && !cmSystemTools::FileExists(dir) &&
         !cmSystemTools::MakeDirectory(dir)) {
-      std::string errstring = "DOWNLOAD error: cannot create directory '" +
-        dir +
-        "' - Specify file by full path name and verify that you "
-        "have directory creation and file write privileges.";
+      std::string errstring =
+        cmStrCat("DOWNLOAD error: cannot create directory '", dir,
+                 "' - Specify file by full path name and verify that you "
+                 "have directory creation and file write privileges.");
       status.SetError(errstring);
       return false;
     }
@@ -2358,10 +2358,10 @@ bool HandleDownloadCommand(std::vector<std::string> const& args,
     if (expectedHash != actualHash) {
       if (!statusVar.empty() && res == 0) {
         status.GetMakefile().AddDefinition(statusVar,
-                                           "1;HASH mismatch: "
-                                           "expected: " +
-                                             expectedHash +
-                                             " actual: " + actualHash);
+                                           cmStrCat("1;HASH mismatch: "
+                                                    "expected: ",
+                                                    expectedHash,
+                                                    " actual: ", actualHash));
       }
 
       status.SetError(cmStrCat("DOWNLOAD HASH mismatch\n"
@@ -3644,8 +3644,8 @@ bool HandleConfigureCommand(std::vector<std::string> const& args,
 
   cmMakefile& makeFile = status.GetMakefile();
   if (!makeFile.CanIWriteThisFile(outputFile)) {
-    cmSystemTools::Error("Attempt to write file: " + outputFile +
-                         " into a source directory.");
+    cmSystemTools::Error(cmStrCat("Attempt to write file: ", outputFile,
+                                  " into a source directory."));
     return false;
   }
 

Source/cmFileInstaller.cxx

@@ -447,8 +447,9 @@ bool cmFileInstaller::HandleInstallDestination()
   if (this->InstallType != cmInstallType_DIRECTORY) {
     if (!cmSystemTools::FileExists(destination)) {
       if (!cmSystemTools::MakeDirectory(destination, default_dir_mode)) {
-        std::string errstring = "cannot create directory: " + destination +
-          ". Maybe need administrative privileges.";
+        std::string errstring =
+          cmStrCat("cannot create directory: ", destination,
+                   ". Maybe need administrative privileges.");
         this->Status.SetError(errstring);
         return false;
       }

Source/cmFortranParserImpl.cxx

@@ -82,7 +82,7 @@ std::string cmFortranParser_s::SModName(std::string const& mod_name,
   if (this->Compiler.SModSep.empty()) {
     return sub_name + SModExt;
   }
-  return mod_name + this->Compiler.SModSep + sub_name + SModExt;
+  return cmStrCat(mod_name, this->Compiler.SModSep, sub_name, SModExt);
 }
 
 bool cmFortranParser_FilePush(cmFortranParser* parser, char const* fname)

Source/cmGeneratorExpressionEvaluationFile.cxx

@@ -167,7 +167,7 @@ void cmGeneratorExpressionEvaluationFile::Generate(cmLocalGenerator* lg)
     std::string line;
     std::string sep;
     while (cmSystemTools::GetLineFromStream(fin, line)) {
-      inputContent += sep + line;
+      inputContent = cmStrCat(inputContent, sep, line);
       sep = "\n";
     }
     inputContent += sep;

Source/cmGeneratorExpressionNode.cxx

@@ -4834,7 +4834,8 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
       std::string linkedTargetsContent = getLinkedTargetsContent(
         target, interfacePropertyName, eval, &dagChecker, usage);
       if (!linkedTargetsContent.empty()) {
-        result += (result.empty() ? "" : ";") + linkedTargetsContent;
+        result =
+          cmStrCat(result, (result.empty() ? "" : ";"), linkedTargetsContent);
       }
     }
     return result;

Source/cmGeneratorTarget.cxx

@@ -1326,7 +1326,7 @@ std::string cmGeneratorTarget::GetCompilePDBName(
       *config_name, this->LocalGenerator, config, this);
     NameComponents const& components = GetFullNameInternalComponents(
       config, cmStateEnums::RuntimeBinaryArtifact);
-    return components.prefix + pdbName + ".pdb";
+    return cmStrCat(components.prefix, pdbName, ".pdb");
   }
 
   cmValue name = this->GetProperty("COMPILE_PDB_NAME");
@@ -1335,7 +1335,7 @@ std::string cmGeneratorTarget::GetCompilePDBName(
       *name, this->LocalGenerator, config, this);
     NameComponents const& components = GetFullNameInternalComponents(
       config, cmStateEnums::RuntimeBinaryArtifact);
-    return components.prefix + pdbName + ".pdb";
+    return cmStrCat(components.prefix, pdbName, ".pdb");
   }
 
   // If the target is PCH-reused or PCH-reuses, we need a stable name for the
@@ -3211,8 +3211,8 @@ std::string cmGeneratorTarget::GetPchHeader(std::string const& config,
     generatorTarget = reuseTarget;
   }
 
-  auto const inserted =
-    this->PchHeaders.insert(std::make_pair(language + config + arch, ""));
+  auto const inserted = this->PchHeaders.insert(
+    std::make_pair(cmStrCat(language, config, arch), ""));
   if (inserted.second) {
     std::vector<BT<std::string>> const headers =
       this->GetPrecompileHeaders(config, language);
@@ -3305,8 +3305,8 @@ std::string cmGeneratorTarget::GetPchSource(std::string const& config,
       language != "OBJCXX") {
     return std::string();
   }
-  auto const inserted =
-    this->PchSources.insert(std::make_pair(language + config + arch, ""));
+  auto const inserted = this->PchSources.insert(
+    std::make_pair(cmStrCat(language, config, arch), ""));
   if (inserted.second) {
     std::string const pchHeader = this->GetPchHeader(config, language, arch);
     if (pchHeader.empty()) {
@@ -3365,8 +3365,8 @@ std::string cmGeneratorTarget::GetPchFileObject(std::string const& config,
       language != "OBJCXX") {
     return std::string();
   }
-  auto const inserted =
-    this->PchObjectFiles.insert(std::make_pair(language + config + arch, ""));
+  auto const inserted = this->PchObjectFiles.insert(
+    std::make_pair(cmStrCat(language, config, arch), ""));
   if (inserted.second) {
     std::string const pchSource = this->GetPchSource(config, language, arch);
     if (pchSource.empty()) {
@@ -3388,8 +3388,8 @@ std::string cmGeneratorTarget::GetPchFile(std::string const& config,
                                           std::string const& language,
                                           std::string const& arch)
 {
-  auto const inserted =
-    this->PchFiles.insert(std::make_pair(language + config + arch, ""));
+  auto const inserted = this->PchFiles.insert(
+    std::make_pair(cmStrCat(language, config, arch), ""));
   if (inserted.second) {
     std::string& pchFile = inserted.first->second;
 
@@ -3448,7 +3448,7 @@ std::string cmGeneratorTarget::GetPchCreateCompileOptions(
   std::string const& arch)
 {
   auto const inserted = this->PchCreateCompileOptions.insert(
-    std::make_pair(language + config + arch, ""));
+    std::make_pair(cmStrCat(language, config, arch), ""));
   if (inserted.second) {
     std::string& createOptionList = inserted.first->second;
 
@@ -3496,7 +3496,7 @@ std::string cmGeneratorTarget::GetPchUseCompileOptions(
   std::string const& arch)
 {
   auto const inserted = this->PchUseCompileOptions.insert(
-    std::make_pair(language + config + arch, ""));
+    std::make_pair(cmStrCat(language, config, arch), ""));
   if (inserted.second) {
     std::string& useOptionList = inserted.first->second;
 
@@ -3944,7 +3944,7 @@ cmGeneratorTarget::Names cmGeneratorTarget::GetExecutableNames(
     targetNames.Output = components.prefix + targetNames.Base;
   } else {
     targetNames.Output =
-      components.prefix + targetNames.Base + components.suffix;
+      cmStrCat(components.prefix, targetNames.Base, components.suffix);
   }
 
 // The executable's real name on disk.
@@ -3977,7 +3977,7 @@ std::string cmGeneratorTarget::GetFullNameInternal(
 {
   NameComponents const& components =
     this->GetFullNameInternalComponents(config, artifact);
-  return components.prefix + components.base + components.suffix;
+  return cmStrCat(components.prefix, components.base, components.suffix);
 }
 
 std::string cmGeneratorTarget::ImportedGetLocation(

Source/cmGraphVizWriter.cxx

@@ -567,7 +567,7 @@ std::string cmGraphVizWriter::ItemNameWithAliases(
 
   auto nameWithAliases = itemName;
   for(auto const& item : items) {
-    nameWithAliases += "\\n(" + item + ")";
+    nameWithAliases = cmStrCat(nameWithAliases, "\\n(" , item , ')');
   }
 
   return nameWithAliases;
@@ -578,10 +578,10 @@ std::string cmGraphVizWriter::GetEdgeStyle(DependencyType dt)
   std::string style;
   switch (dt) {
     case DependencyType::LinkPrivate:
-      style = "[ style = " + std::string(GRAPHVIZ_EDGE_STYLE_PRIVATE) + " ]";
+      style = cmStrCat("[ style = ", GRAPHVIZ_EDGE_STYLE_PRIVATE, " ]");
       break;
     case DependencyType::LinkInterface:
-      style = "[ style = " + std::string(GRAPHVIZ_EDGE_STYLE_INTERFACE) + " ]";
+      style = cmStrCat("[ style = ", GRAPHVIZ_EDGE_STYLE_INTERFACE, " ]");
       break;
     default:
       break;

Source/cmInstallFilesCommand.cxx

@@ -82,8 +82,9 @@ static void FinalAction(cmMakefile& makefile, std::string const& dest,
       // replace any variables
       std::string const& temps = *s;
       if (!cmSystemTools::GetFilenamePath(temps).empty()) {
-        testf = cmSystemTools::GetFilenamePath(temps) + "/" +
-          cmSystemTools::GetFilenameWithoutLastExtension(temps) + ext;
+        testf =
+          cmStrCat(cmSystemTools::GetFilenamePath(temps), '/',
+                   cmSystemTools::GetFilenameWithoutLastExtension(temps), ext);
       } else {
         testf = cmSystemTools::GetFilenameWithoutLastExtension(temps) + ext;
       }

Source/cmInstrumentationCommand.cxx

@@ -146,8 +146,8 @@ bool cmInstrumentationCommand(std::vector<std::string> const& args,
     return true;
   }
   if (!unparsedArguments.empty()) {
-    status.SetError("given unknown argument \"" + unparsedArguments.front() +
-                    "\".");
+    status.SetError(
+      cmStrCat("given unknown argument \"", unparsedArguments.front(), "\"."));
     return false;
   }
   int apiVersion;

Source/cmake.cxx

@@ -974,7 +974,7 @@ bool cmake::FindPackage(std::vector<std::string> const& args)
                                         lg->GetStateSnapshot().GetDirectory());
     lg->GetTargetFlags(&linkLineComputer, buildType, linkLibs, flags,
                        linkFlags, frameworkPath, linkPath, gtgt);
-    linkLibs = frameworkPath + linkPath + linkLibs;
+    linkLibs = cmStrCat(frameworkPath, linkPath, linkLibs);
 
     printf("%s\n", linkLibs.c_str());
 

Source/cmcmd.cxx

@@ -3400,8 +3400,8 @@ int cmVSLink::LinkNonIncremental()
     }
 
     // Run the manifest tool to embed the final manifest in the binary.
-    std::string mtOut = "/outputresource:" + this->TargetFile +
-      (this->Type == 1 ? ";#1" : ";#2");
+    std::string mtOut = cmStrCat("/outputresource:", this->TargetFile,
+                                 (this->Type == 1 ? ";#1" : ";#2"));
     return this->RunMT(mtOut, false);
   }