cmSystemTools::Error: consolidate parameters into single std::string

28 files changed, 134 insertions, 154 deletions

diff --git a/Source/CTest/cmCTestMultiProcessHandler.cxx b/Source/CTest/cmCTestMultiProcessHandler.cxx
index 63c2fcc7fe..1c16a712f4 100644
--- a/Source/CTest/cmCTestMultiProcessHandler.cxx
+++ b/Source/CTest/cmCTestMultiProcessHandler.cxx
@@ -109,8 +109,8 @@ void cmCTestMultiProcessHandler::SetTestLoad(unsigned long load)
                             fake_load_value)) {
     if (!cmSystemTools::StringToULong(fake_load_value.c_str(),
                                       &this->FakeLoadForTesting)) {
-      cmSystemTools::Error("Failed to parse fake load value: ",
-                           fake_load_value.c_str());
+      cmSystemTools::Error("Failed to parse fake load value: " +
+                           fake_load_value);
     }
   }
 }
diff --git a/Source/CTest/cmCTestScriptHandler.cxx b/Source/CTest/cmCTestScriptHandler.cxx
index a714abe403..43cfe16526 100644
--- a/Source/CTest/cmCTestScriptHandler.cxx
+++ b/Source/CTest/cmCTestScriptHandler.cxx
@@ -331,7 +331,7 @@ int cmCTestScriptHandler::ReadInScript(const std::string& total_script_arg)
   }
   // make sure the file exists
   if (!cmSystemTools::FileExists(script)) {
-    cmSystemTools::Error("Cannot find file: ", script.c_str());
+    cmSystemTools::Error("Cannot find file: " + script);
     return 1;
   }
 
@@ -471,8 +471,8 @@ int cmCTestScriptHandler::ExtractVariables()
     msg += "\nCTEST_COMMAND = ";
     msg += (!this->CTestCmd.empty()) ? this->CTestCmd.c_str() : "(Null)";
     cmSystemTools::Error(
-      "Some required settings in the configuration file were missing:\n",
-      msg.c_str());
+      "Some required settings in the configuration file were missing:\n" +
+      msg);
     return 4;
   }
 
@@ -611,8 +611,7 @@ int cmCTestScriptHandler::CheckOutSourceDir()
       this->CVSCheckOut, &output, &output, &retVal, this->CTestRoot.c_str(),
       this->HandlerVerbose, cmDuration::zero() /*this->TimeOut*/);
     if (!res || retVal != 0) {
-      cmSystemTools::Error("Unable to perform cvs checkout:\n",
-                           output.c_str());
+      cmSystemTools::Error("Unable to perform cvs checkout:\n" + output);
       return 6;
     }
   }
@@ -678,8 +677,8 @@ int cmCTestScriptHandler::PerformExtraUpdates()
         fullCommand, &output, &output, &retVal, cvsArgs[0].c_str(),
         this->HandlerVerbose, cmDuration::zero() /*this->TimeOut*/);
       if (!res || retVal != 0) {
-        cmSystemTools::Error("Unable to perform extra updates:\n", eu.c_str(),
-                             "\nWith output:\n", output.c_str());
+        cmSystemTools::Error("Unable to perform extra updates:\n" + eu +
+                             "\nWith output:\n" + output);
         return 0;
       }
     }
@@ -721,8 +720,8 @@ int cmCTestScriptHandler::RunConfigurationDashboard()
   if (!cmSystemTools::FileExists(this->BinaryDir) &&
       this->SourceDir != this->BinaryDir) {
     if (!cmSystemTools::MakeDirectory(this->BinaryDir)) {
-      cmSystemTools::Error("Unable to create the binary directory:\n",
-                           this->BinaryDir.c_str());
+      cmSystemTools::Error("Unable to create the binary directory:\n" +
+                           this->BinaryDir);
       this->RestoreBackupDirectories();
       return 7;
     }
diff --git a/Source/cmCacheManager.cxx b/Source/cmCacheManager.cxx
index 2728f0f9a0..6116de031e 100644
--- a/Source/cmCacheManager.cxx
+++ b/Source/cmCacheManager.cxx
@@ -239,8 +239,7 @@ bool cmCacheManager::SaveCache(const std::string& path, cmMessenger* messenger)
   cmGeneratedFileStream fout(cacheFile);
   fout.SetCopyIfDifferent(true);
   if (!fout) {
-    cmSystemTools::Error("Unable to open cache file for save. ",
-                         cacheFile.c_str());
+    cmSystemTools::Error("Unable to open cache file for save. " + cacheFile);
     cmSystemTools::ReportLastSystemError("");
     return false;
   }
@@ -364,8 +363,8 @@ bool cmCacheManager::SaveCache(const std::string& path, cmMessenger* messenger)
   checkCacheFile += "/cmake.check_cache";
   cmsys::ofstream checkCache(checkCacheFile.c_str());
   if (!checkCache) {
-    cmSystemTools::Error("Unable to open check cache file for write. ",
-                         checkCacheFile.c_str());
+    cmSystemTools::Error("Unable to open check cache file for write. " +
+                         checkCacheFile);
     return false;
   }
   checkCache << "# This file is generated by cmake for dependency checking "
diff --git a/Source/cmComputeLinkInformation.cxx b/Source/cmComputeLinkInformation.cxx
index 3d61665fd3..abddc82c13 100644
--- a/Source/cmComputeLinkInformation.cxx
+++ b/Source/cmComputeLinkInformation.cxx
@@ -457,8 +457,8 @@ bool cmComputeLinkInformation::Compute()
   // We require a link language for the target.
   if (this->LinkLanguage.empty()) {
     cmSystemTools::Error(
-      "CMake can not determine linker language for target: ",
-      this->Target->GetName().c_str());
+      "CMake can not determine linker language for target: " +
+      this->Target->GetName());
     return false;
   }
 
diff --git a/Source/cmCoreTryCompile.cxx b/Source/cmCoreTryCompile.cxx
index eb5289507f..69d4374d6b 100644
--- a/Source/cmCoreTryCompile.cxx
+++ b/Source/cmCoreTryCompile.cxx
@@ -950,8 +950,8 @@ void cmCoreTryCompile::CleanupFiles(std::string const& binDir)
   if (binDir.find("CMakeTmp") == std::string::npos) {
     cmSystemTools::Error(
       "TRY_COMPILE attempt to remove -rf directory that does not contain "
-      "CMakeTmp:",
-      binDir.c_str());
+      "CMakeTmp:" +
+      binDir);
     return;
   }
 
diff --git a/Source/cmDependsC.cxx b/Source/cmDependsC.cxx
index b1630f9ae5..f5c106cfaa 100644
--- a/Source/cmDependsC.cxx
+++ b/Source/cmDependsC.cxx
@@ -173,8 +173,7 @@ bool cmDependsC::WriteDependencies(const std::set<std::string>& sources,
       // regex.
       if (fullName.empty() &&
           this->IncludeRegexComplain.find(current.FileName)) {
-        cmSystemTools::Error("Cannot find file \"", current.FileName.c_str(),
-                             "\".");
+        cmSystemTools::Error("Cannot find file \"" + current.FileName + "\".");
         return false;
       }
 
diff --git a/Source/cmExecProgramCommand.cxx b/Source/cmExecProgramCommand.cxx
index 75a7786a43..8cb666a185 100644
--- a/Source/cmExecProgramCommand.cxx
+++ b/Source/cmExecProgramCommand.cxx
@@ -152,7 +152,7 @@ bool cmExecProgramCommand::RunCommand(const char* command, std::string& output,
         if (!cmSystemTools::FileExists(cmd)) {
           shortCmd = cmd;
         } else if (!cmSystemTools::GetShortPath(cmd.c_str(), shortCmd)) {
-          cmSystemTools::Error("GetShortPath failed for ", cmd.c_str());
+          cmSystemTools::Error("GetShortPath failed for " + cmd);
           return false;
         }
         shortCmd += " ";
diff --git a/Source/cmExportLibraryDependenciesCommand.cxx b/Source/cmExportLibraryDependenciesCommand.cxx
index e542e50ccd..0a0646ccdb 100644
--- a/Source/cmExportLibraryDependenciesCommand.cxx
+++ b/Source/cmExportLibraryDependenciesCommand.cxx
@@ -62,7 +62,7 @@ void cmExportLibraryDependenciesCommand::ConstFinalPass() const
   std::ostream& fout = *foutPtr;
 
   if (!fout) {
-    cmSystemTools::Error("Error Writing ", this->Filename.c_str());
+    cmSystemTools::Error("Error Writing " + this->Filename);
     cmSystemTools::ReportLastSystemError("");
     return;
   }
diff --git a/Source/cmGeneratedFileStream.cxx b/Source/cmGeneratedFileStream.cxx
index 4fe15874d3..2f47788f8a 100644
--- a/Source/cmGeneratedFileStream.cxx
+++ b/Source/cmGeneratedFileStream.cxx
@@ -29,8 +29,7 @@ cmGeneratedFileStream::cmGeneratedFileStream(std::string const& name,
 {
   // Check if the file opened.
   if (!*this && !quiet) {
-    cmSystemTools::Error("Cannot open file for write: ",
-                         this->TempName.c_str());
+    cmSystemTools::Error("Cannot open file for write: " + this->TempName);
     cmSystemTools::ReportLastSystemError("");
   }
 #ifdef CMAKE_BUILD_WITH_CMAKE
@@ -68,8 +67,7 @@ cmGeneratedFileStream& cmGeneratedFileStream::Open(std::string const& name,
 
   // Check if the file opened.
   if (!*this && !quiet) {
-    cmSystemTools::Error("Cannot open file for write: ",
-                         this->TempName.c_str());
+    cmSystemTools::Error("Cannot open file for write: " + this->TempName);
     cmSystemTools::ReportLastSystemError("");
   }
   return *this;
diff --git a/Source/cmGlobVerificationManager.cxx b/Source/cmGlobVerificationManager.cxx
index 5fd890eab7..9fb4170986 100644
--- a/Source/cmGlobVerificationManager.cxx
+++ b/Source/cmGlobVerificationManager.cxx
@@ -25,8 +25,8 @@ bool cmGlobVerificationManager::SaveVerificationScript(const std::string& path)
   cmGeneratedFileStream verifyScriptFile(scriptFile);
   verifyScriptFile.SetCopyIfDifferent(true);
   if (!verifyScriptFile) {
-    cmSystemTools::Error("Unable to open verification script file for save. ",
-                         scriptFile.c_str());
+    cmSystemTools::Error("Unable to open verification script file for save. " +
+                         scriptFile);
     cmSystemTools::ReportLastSystemError("");
     return false;
   }
@@ -71,8 +71,8 @@ bool cmGlobVerificationManager::SaveVerificationScript(const std::string& path)
 
   cmsys::ofstream verifyStampFile(stampFile.c_str());
   if (!verifyStampFile) {
-    cmSystemTools::Error("Unable to open verification stamp file for write. ",
-                         stampFile.c_str());
+    cmSystemTools::Error("Unable to open verification stamp file for write. " +
+                         stampFile);
     return false;
   }
   verifyStampFile << "# This file is generated by CMake for checking of the "
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index fa0ffcc611..daec0eb855 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -212,7 +212,7 @@ void cmGlobalGenerator::ResolveLanguageCompiler(const std::string& lang,
 
   if (!mf->GetDefinition(langComp)) {
     if (!optional) {
-      cmSystemTools::Error(langComp.c_str(), " not set, after EnableLanguage");
+      cmSystemTools::Error(langComp + " not set, after EnableLanguage");
     }
     return;
   }
@@ -638,8 +638,7 @@ void cmGlobalGenerator::EnableLanguage(
       // to avoid duplicate compiler tests.
       if (cmSystemTools::FileExists(fpath)) {
         if (!mf->ReadListFile(fpath)) {
-          cmSystemTools::Error("Could not find cmake module file: ",
-                               fpath.c_str());
+          cmSystemTools::Error("Could not find cmake module file: " + fpath);
         }
         // if this file was found then the language was already determined
         // to be working
@@ -664,8 +663,8 @@ void cmGlobalGenerator::EnableLanguage(
       determineCompiler += "Compiler.cmake";
       std::string determineFile = mf->GetModulesFile(determineCompiler);
       if (!mf->ReadListFile(determineFile)) {
-        cmSystemTools::Error("Could not find cmake module file: ",
-                             determineCompiler.c_str());
+        cmSystemTools::Error("Could not find cmake module file: " +
+                             determineCompiler);
       }
       if (cmSystemTools::GetFatalErrorOccured()) {
         return;
@@ -699,8 +698,7 @@ void cmGlobalGenerator::EnableLanguage(
       fpath += lang;
       fpath += "Compiler.cmake";
       if (!mf->ReadListFile(fpath)) {
-        cmSystemTools::Error("Could not find cmake module file: ",
-                             fpath.c_str());
+        cmSystemTools::Error("Could not find cmake module file: " + fpath);
       }
       this->SetLanguageEnabledFlag(lang, mf);
       needSetLanguageEnabledMaps[lang] = true;
@@ -792,11 +790,10 @@ void cmGlobalGenerator::EnableLanguage(
       fpath += "Information.cmake";
       std::string informationFile = mf->GetModulesFile(fpath);
       if (informationFile.empty()) {
-        cmSystemTools::Error("Could not find cmake module file: ",
-                             fpath.c_str());
+        cmSystemTools::Error("Could not find cmake module file: " + fpath);
       } else if (!mf->ReadListFile(informationFile)) {
-        cmSystemTools::Error("Could not process cmake module file: ",
-                             informationFile.c_str());
+        cmSystemTools::Error("Could not process cmake module file: " +
+                             informationFile);
       }
     }
     if (needSetLanguageEnabledMaps[lang]) {
@@ -816,8 +813,8 @@ void cmGlobalGenerator::EnableLanguage(
         testLang += "Compiler.cmake";
         std::string ifpath = mf->GetModulesFile(testLang);
         if (!mf->ReadListFile(ifpath)) {
-          cmSystemTools::Error("Could not find cmake module file: ",
-                               testLang.c_str());
+          cmSystemTools::Error("Could not find cmake module file: " +
+                               testLang);
         }
         std::string compilerWorks = "CMAKE_";
         compilerWorks += lang;
@@ -1706,8 +1703,8 @@ void cmGlobalGenerator::CheckTargetProperties()
     cmSystemTools::Error("The following variables are used in this project, "
                          "but they are set to NOTFOUND.\n"
                          "Please set them or make sure they are set and "
-                         "tested correctly in the CMake files:\n",
-                         notFoundVars.c_str());
+                         "tested correctly in the CMake files:\n" +
+                         notFoundVars);
   }
 }
 
@@ -1851,8 +1848,8 @@ int cmGlobalGenerator::Build(int jobs, const std::string& /*unused*/,
                                        timeout)) {
     cmSystemTools::SetRunCommandHideConsole(hideconsole);
     cmSystemTools::Error(
-      "Generator: execution of make failed. Make command was: ",
-      makeCommandStr.c_str());
+      "Generator: execution of make failed. Make command was: " +
+      makeCommandStr);
     output += *outputPtr;
     output += "\nGenerator: execution of make failed. Make command was: " +
       makeCommandStr + "\n";
diff --git a/Source/cmGlobalNinjaGenerator.cxx b/Source/cmGlobalNinjaGenerator.cxx
index 31bcacfe3b..b78ffa90d2 100644
--- a/Source/cmGlobalNinjaGenerator.cxx
+++ b/Source/cmGlobalNinjaGenerator.cxx
@@ -136,16 +136,16 @@ void cmGlobalNinjaGenerator::WriteBuild(
   // Make sure there is a rule.
   if (rule.empty()) {
     cmSystemTools::Error("No rule for WriteBuildStatement! called "
-                         "with comment: ",
-                         comment.c_str());
+                         "with comment: " +
+                         comment);
     return;
   }
 
   // Make sure there is at least one output file.
   if (outputs.empty()) {
     cmSystemTools::Error("No output files for WriteBuildStatement! called "
-                         "with comment: ",
-                         comment.c_str());
+                         "with comment: " +
+                         comment);
     return;
   }
 
@@ -334,16 +334,16 @@ void cmGlobalNinjaGenerator::WriteRule(
   // Make sure the rule has a name.
   if (name.empty()) {
     cmSystemTools::Error("No name given for WriteRuleStatement! called "
-                         "with comment: ",
-                         comment.c_str());
+                         "with comment: " +
+                         comment);
     return;
   }
 
   // Make sure a command is given.
   if (command.empty()) {
     cmSystemTools::Error("No command given for WriteRuleStatement! called "
-                         "with comment: ",
-                         comment.c_str());
+                         "with comment: " +
+                         comment);
     return;
   }
 
@@ -376,7 +376,7 @@ void cmGlobalNinjaGenerator::WriteRule(
 
   if (!rspfile.empty()) {
     if (rspcontent.empty()) {
-      cmSystemTools::Error("No rspfile_content given!", comment.c_str());
+      cmSystemTools::Error("No rspfile_content given!" + comment);
       return;
     }
     cmGlobalNinjaGenerator::Indent(os, 1);
@@ -407,8 +407,8 @@ void cmGlobalNinjaGenerator::WriteVariable(std::ostream& os,
   // Make sure we have a name.
   if (name.empty()) {
     cmSystemTools::Error("No name given for WriteVariable! called "
-                         "with comment: ",
-                         comment.c_str());
+                         "with comment: " +
+                         comment);
     return;
   }
 
@@ -1652,8 +1652,7 @@ int cmcmd_cmake_ninja_depends(std::vector<std::string>::const_iterator argBeg,
     } else if (cmHasLiteralPrefix(arg, "--ddi=")) {
       arg_ddi = arg.substr(6);
     } else {
-      cmSystemTools::Error("-E cmake_ninja_depends unknown argument: ",
-                           arg.c_str());
+      cmSystemTools::Error("-E cmake_ninja_depends unknown argument: " + arg);
       return 1;
     }
   }
@@ -1687,9 +1686,8 @@ int cmcmd_cmake_ninja_depends(std::vector<std::string>::const_iterator argBeg,
       cmsys::ifstream tdif(arg_tdi.c_str(), std::ios::in | std::ios::binary);
       Json::Reader reader;
       if (!reader.parse(tdif, tdio, false)) {
-        cmSystemTools::Error("-E cmake_ninja_depends failed to parse ",
-                             arg_tdi.c_str(),
-                             reader.getFormattedErrorMessages().c_str());
+        cmSystemTools::Error("-E cmake_ninja_depends failed to parse " +
+                             arg_tdi + reader.getFormattedErrorMessages());
         return 1;
       }
     }
@@ -1715,8 +1713,7 @@ int cmcmd_cmake_ninja_depends(std::vector<std::string>::const_iterator argBeg,
   std::set<std::string> defines;
   cmFortranParser parser(fc, includes, defines, info);
   if (!cmFortranParser_FilePush(&parser, arg_pp.c_str())) {
-    cmSystemTools::Error("-E cmake_ninja_depends failed to open ",
-                         arg_pp.c_str());
+    cmSystemTools::Error("-E cmake_ninja_depends failed to open " + arg_pp);
     return 1;
   }
   if (cmFortran_yyparse(parser.Scanner) != 0) {
@@ -1751,8 +1748,7 @@ int cmcmd_cmake_ninja_depends(std::vector<std::string>::const_iterator argBeg,
   cmGeneratedFileStream ddif(arg_ddi);
   ddif << ddi;
   if (!ddif) {
-    cmSystemTools::Error("-E cmake_ninja_depends failed to write ",
-                         arg_ddi.c_str());
+    cmSystemTools::Error("-E cmake_ninja_depends failed to write " + arg_ddi);
     return 1;
   }
   return 0;
@@ -1795,9 +1791,8 @@ bool cmGlobalNinjaGenerator::WriteDyndepFile(
     cmsys::ifstream ddif(arg_ddi.c_str(), std::ios::in | std::ios::binary);
     Json::Reader reader;
     if (!reader.parse(ddif, ddio, false)) {
-      cmSystemTools::Error("-E cmake_ninja_dyndep failed to parse ",
-                           arg_ddi.c_str(),
-                           reader.getFormattedErrorMessages().c_str());
+      cmSystemTools::Error("-E cmake_ninja_dyndep failed to parse " + arg_ddi +
+                           reader.getFormattedErrorMessages());
       return false;
     }
 
@@ -1828,9 +1823,9 @@ bool cmGlobalNinjaGenerator::WriteDyndepFile(
     cmsys::ifstream ltmf(ltmn.c_str(), std::ios::in | std::ios::binary);
     Json::Reader reader;
     if (ltmf && !reader.parse(ltmf, ltm, false)) {
-      cmSystemTools::Error("-E cmake_ninja_dyndep failed to parse ",
-                           linked_target_dir.c_str(),
-                           reader.getFormattedErrorMessages().c_str());
+      cmSystemTools::Error("-E cmake_ninja_dyndep failed to parse " +
+                           linked_target_dir +
+                           reader.getFormattedErrorMessages());
       return false;
     }
     if (ltm.isObject()) {
@@ -1911,8 +1906,7 @@ int cmcmd_cmake_ninja_dyndep(std::vector<std::string>::const_iterator argBeg,
                cmHasLiteralSuffix(arg, ".ddi")) {
       arg_ddis.push_back(arg);
     } else {
-      cmSystemTools::Error("-E cmake_ninja_dyndep unknown argument: ",
-                           arg.c_str());
+      cmSystemTools::Error("-E cmake_ninja_dyndep unknown argument: " + arg);
       return 1;
     }
   }
@@ -1931,9 +1925,8 @@ int cmcmd_cmake_ninja_dyndep(std::vector<std::string>::const_iterator argBeg,
     cmsys::ifstream tdif(arg_tdi.c_str(), std::ios::in | std::ios::binary);
     Json::Reader reader;
     if (!reader.parse(tdif, tdio, false)) {
-      cmSystemTools::Error("-E cmake_ninja_dyndep failed to parse ",
-                           arg_tdi.c_str(),
-                           reader.getFormattedErrorMessages().c_str());
+      cmSystemTools::Error("-E cmake_ninja_dyndep failed to parse " + arg_tdi +
+                           reader.getFormattedErrorMessages());
       return 1;
     }
   }
diff --git a/Source/cmGlobalVisualStudio8Generator.cxx b/Source/cmGlobalVisualStudio8Generator.cxx
index f6db018ea8..ceb56d128b 100644
--- a/Source/cmGlobalVisualStudio8Generator.cxx
+++ b/Source/cmGlobalVisualStudio8Generator.cxx
@@ -205,7 +205,7 @@ bool cmGlobalVisualStudio8Generator::AddCheckTarget()
           "Checking Build System", no_working_directory, true, false)) {
       gt->AddSource(file->GetFullPath());
     } else {
-      cmSystemTools::Error("Error adding rule for ", stamps[0].c_str());
+      cmSystemTools::Error("Error adding rule for " + stamps[0]);
     }
   }
 
diff --git a/Source/cmGlobalVisualStudioGenerator.cxx b/Source/cmGlobalVisualStudioGenerator.cxx
index 1922906b39..45927c913e 100644
--- a/Source/cmGlobalVisualStudioGenerator.cxx
+++ b/Source/cmGlobalVisualStudioGenerator.cxx
@@ -918,7 +918,7 @@ void cmGlobalVisualStudioGenerator::AddSymbolExportCommand(
   cmdl.push_back(objs_file);
   cmGeneratedFileStream fout(objs_file.c_str());
   if (!fout) {
-    cmSystemTools::Error("could not open ", objs_file.c_str());
+    cmSystemTools::Error("could not open " + objs_file);
     return;
   }
 
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index 83931659d7..90f1c00667 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -366,8 +366,8 @@ void cmLocalGenerator::ProcessEvaluationFiles(
                           std::back_inserter(intersection));
     if (!intersection.empty()) {
       cmSystemTools::Error("Files to be generated by multiple different "
-                           "commands: ",
-                           cmWrap('"', intersection, '"', " ").c_str());
+                           "commands: " +
+                           cmWrap('"', intersection, '"', " "));
       return;
     }
 
@@ -1168,8 +1168,8 @@ void cmLocalGenerator::GetTargetFlags(
       }
       if (linkLanguage.empty()) {
         cmSystemTools::Error(
-          "CMake can not determine linker language for target: ",
-          target->GetName().c_str());
+          "CMake can not determine linker language for target: " +
+          target->GetName());
         return;
       }
       this->AddLanguageFlagsForLinking(flags, target, linkLanguage, buildType);
diff --git a/Source/cmLocalNinjaGenerator.cxx b/Source/cmLocalNinjaGenerator.cxx
index 4dc04d5602..f4e3ed8537 100644
--- a/Source/cmLocalNinjaGenerator.cxx
+++ b/Source/cmLocalNinjaGenerator.cxx
@@ -232,8 +232,8 @@ void cmLocalNinjaGenerator::WritePools(std::ostream& os)
         os << "  depth = " << jobs << std::endl;
         os << std::endl;
       } else {
-        cmSystemTools::Error("Invalid pool defined by property 'JOB_POOLS': ",
-                             pool.c_str());
+        cmSystemTools::Error("Invalid pool defined by property 'JOB_POOLS': " +
+                             pool);
       }
     }
   }
diff --git a/Source/cmLocalUnixMakefileGenerator3.cxx b/Source/cmLocalUnixMakefileGenerator3.cxx
index 7eb4a03d57..f8e74415af 100644
--- a/Source/cmLocalUnixMakefileGenerator3.cxx
+++ b/Source/cmLocalUnixMakefileGenerator3.cxx
@@ -1054,7 +1054,7 @@ void cmLocalUnixMakefileGenerator3::AppendCleanCommand(
   std::string cleanfilePath = cmSystemTools::CollapseFullPath(cleanfile);
   cmsys::ofstream fout(cleanfilePath.c_str());
   if (!fout) {
-    cmSystemTools::Error("Could not create ", cleanfilePath.c_str());
+    cmSystemTools::Error("Could not create " + cleanfilePath);
   }
   if (!files.empty()) {
     fout << "file(REMOVE_RECURSE\n";
diff --git a/Source/cmLocalVisualStudio7Generator.cxx b/Source/cmLocalVisualStudio7Generator.cxx
index 9f18e8f82b..a497308320 100644
--- a/Source/cmLocalVisualStudio7Generator.cxx
+++ b/Source/cmLocalVisualStudio7Generator.cxx
@@ -118,8 +118,8 @@ void cmLocalVisualStudio7Generator::WriteProjectFiles()
   // If not an in source build, then create the output directory
   if (this->GetCurrentBinaryDirectory() != this->GetSourceDirectory()) {
     if (!cmSystemTools::MakeDirectory(this->GetCurrentBinaryDirectory())) {
-      cmSystemTools::Error("Error creating directory ",
-                           this->GetCurrentBinaryDirectory().c_str());
+      cmSystemTools::Error("Error creating directory " +
+                           this->GetCurrentBinaryDirectory());
     }
   }
 
@@ -283,7 +283,7 @@ cmSourceFile* cmLocalVisualStudio7Generator::CreateVCProjBuildRule()
     file->GetFullPath();
     return file;
   } else {
-    cmSystemTools::Error("Error adding rule for ", makefileIn.c_str());
+    cmSystemTools::Error("Error adding rule for " + makefileIn);
     return nullptr;
   }
 }
@@ -654,8 +654,8 @@ void cmLocalVisualStudio7Generator::WriteConfiguration(
                             : target->GetLinkerLanguage(configName));
     if (linkLanguage.empty()) {
       cmSystemTools::Error(
-        "CMake can not determine linker language for target: ",
-        target->GetName().c_str());
+        "CMake can not determine linker language for target: " +
+        target->GetName());
       return;
     }
     langForClCompile = linkLanguage;
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 0a0501bf10..f66999f440 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -959,9 +959,8 @@ cmSourceFile* cmMakefile::AddCustomCommandToOutput(
     if (file && file->GetCustomCommand() && !replace) {
       // The rule file already exists.
       if (commandLines != file->GetCustomCommand()->GetCommandLines()) {
-        cmSystemTools::Error("Attempt to add a custom rule to output \"",
-                             outName.c_str(),
-                             "\" which already has a custom rule.");
+        cmSystemTools::Error("Attempt to add a custom rule to output \"" +
+                             outName + "\" which already has a custom rule.");
       }
       return file;
     }
@@ -1101,8 +1100,8 @@ void cmMakefile::AddCustomCommandOldStyle(
         ti->second.AddSource(sf->GetFullPath());
       } else {
         cmSystemTools::Error("Attempt to add a custom rule to a target "
-                             "that does not exist yet for target ",
-                             target.c_str());
+                             "that does not exist yet for target " +
+                             target);
         return;
       }
     }
@@ -1189,8 +1188,7 @@ cmTarget* cmMakefile::AddUtilityCommand(
     if (sf) {
       sf->SetProperty("SYMBOLIC", "1");
     } else {
-      cmSystemTools::Error("Could not get source file entry for ",
-                           force.c_str());
+      cmSystemTools::Error("Could not get source file entry for " + force);
     }
 
     // Always create the byproduct sources and mark them generated.
@@ -2445,8 +2443,9 @@ const std::string& cmMakefile::GetRequiredDefinition(
   const std::string* def = GetDef(name);
   if (!def) {
     cmSystemTools::Error("Error required internal CMake variable not "
-                         "set, cmake may not be built correctly.\n",
-                         "Missing variable is:\n", name.c_str());
+                         "set, cmake may not be built correctly.\n"
+                         "Missing variable is:\n" +
+                         name);
     return empty;
   }
   return *def;
@@ -3779,15 +3778,15 @@ int cmMakefile::ConfigureFile(const std::string& infile,
     tempOutputFile += ".tmp";
     cmsys::ofstream fout(tempOutputFile.c_str(), omode);
     if (!fout) {
-      cmSystemTools::Error("Could not open file for write in copy operation ",
-                           tempOutputFile.c_str());
+      cmSystemTools::Error("Could not open file for write in copy operation " +
+                           tempOutputFile);
       cmSystemTools::ReportLastSystemError("");
       return 0;
     }
     cmsys::ifstream fin(sinfile.c_str());
     if (!fin) {
-      cmSystemTools::Error("Could not open file for read in copy operation ",
-                           sinfile.c_str());
+      cmSystemTools::Error("Could not open file for read in copy operation " +
+                           sinfile);
       return 0;
     }
 
diff --git a/Source/cmMakefileExecutableTargetGenerator.cxx b/Source/cmMakefileExecutableTargetGenerator.cxx
index 572270a7e2..984cd85e13 100644
--- a/Source/cmMakefileExecutableTargetGenerator.cxx
+++ b/Source/cmMakefileExecutableTargetGenerator.cxx
@@ -370,8 +370,8 @@ void cmMakefileExecutableTargetGenerator::WriteExecutableRule(bool relink)
 
   // Make sure we have a link language.
   if (linkLanguage.empty()) {
-    cmSystemTools::Error("Cannot determine link language for target \"",
-                         this->GeneratorTarget->GetName().c_str(), "\".");
+    cmSystemTools::Error("Cannot determine link language for target \"" +
+                         this->GeneratorTarget->GetName() + "\".");
     return;
   }
 
diff --git a/Source/cmMakefileLibraryTargetGenerator.cxx b/Source/cmMakefileLibraryTargetGenerator.cxx
index ed2fd68f03..44e65475c9 100644
--- a/Source/cmMakefileLibraryTargetGenerator.cxx
+++ b/Source/cmMakefileLibraryTargetGenerator.cxx
@@ -462,8 +462,8 @@ void cmMakefileLibraryTargetGenerator::WriteLibraryRules(
 
   // Make sure we have a link language.
   if (linkLanguage.empty()) {
-    cmSystemTools::Error("Cannot determine link language for target \"",
-                         this->GeneratorTarget->GetName().c_str(), "\".");
+    cmSystemTools::Error("Cannot determine link language for target \"" +
+                         this->GeneratorTarget->GetName() + "\".");
     return;
   }
 
diff --git a/Source/cmNinjaNormalTargetGenerator.cxx b/Source/cmNinjaNormalTargetGenerator.cxx
index 37843139fc..3264237877 100644
--- a/Source/cmNinjaNormalTargetGenerator.cxx
+++ b/Source/cmNinjaNormalTargetGenerator.cxx
@@ -68,8 +68,8 @@ void cmNinjaNormalTargetGenerator::Generate()
 {
   if (this->TargetLinkLanguage.empty()) {
     cmSystemTools::Error("CMake can not determine linker language for "
-                         "target: ",
-                         this->GetGeneratorTarget()->GetName().c_str());
+                         "target: " +
+                         this->GetGeneratorTarget()->GetName());
     return;
   }
 
diff --git a/Source/cmOutputRequiredFilesCommand.cxx b/Source/cmOutputRequiredFilesCommand.cxx
index e0c1dad523..cb9433f4d1 100644
--- a/Source/cmOutputRequiredFilesCommand.cxx
+++ b/Source/cmOutputRequiredFilesCommand.cxx
@@ -166,7 +166,7 @@ protected:
   {
     cmsys::ifstream fin(info->FullPath.c_str());
     if (!fin) {
-      cmSystemTools::Error("error can not open ", info->FullPath.c_str());
+      cmSystemTools::Error("error can not open " + info->FullPath);
       return;
     }
 
@@ -181,7 +181,7 @@ protected:
           qstart = line.find('<', 8);
           // if a < is not found then move on
           if (qstart == std::string::npos) {
-            cmSystemTools::Error("unknown include directive ", line.c_str());
+            cmSystemTools::Error("unknown include directive " + line);
             continue;
           }
           qend = line.find('>', qstart + 1);
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index f0e8077e7f..1ca23606a3 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -1425,12 +1425,12 @@ std::string cmSystemTools::RelativePath(std::string const& local,
                                         std::string const& remote)
 {
   if (!cmSystemTools::FileIsFullPath(local)) {
-    cmSystemTools::Error("RelativePath must be passed a full path to local: ",
-                         local.c_str());
+    cmSystemTools::Error("RelativePath must be passed a full path to local: " +
+                         local);
   }
   if (!cmSystemTools::FileIsFullPath(remote)) {
-    cmSystemTools::Error("RelativePath must be passed a full path to remote: ",
-                         remote.c_str());
+    cmSystemTools::Error(
+      "RelativePath must be passed a full path to remote: " + remote);
   }
   return cmsys::SystemTools::RelativePath(local, remote);
 }
@@ -1909,8 +1909,8 @@ bool extract_tar(const char* outFileName, bool verbose, bool extract)
       else {
         cmSystemTools::Error("Problem with archive_write_header(): ",
                              archive_error_string(ext));
-        cmSystemTools::Error("Current file: ",
-                             cm_archive_entry_pathname(entry).c_str());
+        cmSystemTools::Error("Current file: " +
+                             cm_archive_entry_pathname(entry));
         break;
       }
     }
diff --git a/Source/cmUseMangledMesaCommand.cxx b/Source/cmUseMangledMesaCommand.cxx
index 9648b21d8f..e4a1b5f272 100644
--- a/Source/cmUseMangledMesaCommand.cxx
+++ b/Source/cmUseMangledMesaCommand.cxx
@@ -19,7 +19,7 @@ bool cmUseMangledMesaCommand::InitialPass(std::vector<std::string> const& args,
     this->SetError("called with incorrect number of arguments");
     return false;
   }
-  const char* inputDir = args[0].c_str();
+  const std::string& inputDir = args[0];
   std::string glh = inputDir;
   glh += "/";
   glh += "gl.h";
@@ -34,7 +34,7 @@ bool cmUseMangledMesaCommand::InitialPass(std::vector<std::string> const& args,
   std::vector<std::string> files;
   cmSystemTools::Glob(inputDir, "\\.h$", files);
   if (files.empty()) {
-    cmSystemTools::Error("Could not open Mesa Directory ", inputDir);
+    cmSystemTools::Error("Could not open Mesa Directory " + inputDir);
     return false;
   }
   cmSystemTools::MakeDirectory(destDir);
@@ -60,8 +60,8 @@ void cmUseMangledMesaCommand::CopyAndFullPathMesaHeader(const char* source,
   tempOutputFile += ".tmp";
   cmsys::ofstream fout(tempOutputFile.c_str());
   if (!fout) {
-    cmSystemTools::Error("Could not open file for write in copy operation: ",
-                         tempOutputFile.c_str(), outdir);
+    cmSystemTools::Error("Could not open file for write in copy operation: " +
+                         tempOutputFile + outdir);
     cmSystemTools::ReportLastSystemError("");
     return;
   }
diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index 6ee82f4fba..b6558154f4 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -1321,8 +1321,7 @@ void cmVisualStudio10TargetGenerator::WriteCustomRule(
         std::string error = "Could not create file: [";
         error += sourcePath;
         error += "]  ";
-        cmSystemTools::Error(error.c_str(),
-                             cmSystemTools::GetLastSystemError().c_str());
+        cmSystemTools::Error(error + cmSystemTools::GetLastSystemError());
       }
     }
   }
@@ -2514,8 +2513,7 @@ bool cmVisualStudio10TargetGenerator::ComputeClOptions(
     this->GeneratorTarget->GetLinkerLanguage(configName);
   if (linkLanguage.empty()) {
     cmSystemTools::Error(
-      "CMake can not determine linker language for target: ",
-      this->Name.c_str());
+      "CMake can not determine linker language for target: " + this->Name);
     return false;
   }
 
@@ -3345,8 +3343,7 @@ bool cmVisualStudio10TargetGenerator::ComputeLinkOptions(
   const std::string& linkLanguage = linkClosure->LinkerLanguage;
   if (linkLanguage.empty()) {
     cmSystemTools::Error(
-      "CMake can not determine linker language for target: ",
-      this->Name.c_str());
+      "CMake can not determine linker language for target: " + this->Name);
     return false;
   }
 
@@ -3391,8 +3388,8 @@ bool cmVisualStudio10TargetGenerator::ComputeLinkOptions(
     this->GeneratorTarget->GetLinkInformation(config);
   if (!pcli) {
     cmSystemTools::Error(
-      "CMake can not compute cmComputeLinkInformation for target: ",
-      this->Name.c_str());
+      "CMake can not compute cmComputeLinkInformation for target: " +
+      this->Name);
     return false;
   }
   cmComputeLinkInformation& cli = *pcli;
@@ -3572,8 +3569,8 @@ bool cmVisualStudio10TargetGenerator::ComputeLibOptions(
     this->GeneratorTarget->GetLinkInformation(config);
   if (!pcli) {
     cmSystemTools::Error(
-      "CMake can not compute cmComputeLinkInformation for target: ",
-      this->Name.c_str());
+      "CMake can not compute cmComputeLinkInformation for target: " +
+      this->Name);
     return false;
   }
 
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index ab783c7da1..f6f0a953dd 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -788,13 +788,13 @@ void cmake::SetArgs(const std::vector<std::string>& args)
       }
       cmGlobalGenerator* gen = this->CreateGlobalGenerator(value);
       if (!gen) {
-        const char* kdevError = nullptr;
+        std::string kdevError;
         if (value.find("KDevelop3", 0) != std::string::npos) {
           kdevError = "\nThe KDevelop3 generator is not supported anymore.";
         }
 
-        cmSystemTools::Error("Could not create named generator ",
-                             value.c_str(), kdevError);
+        cmSystemTools::Error("Could not create named generator " + value +
+                             kdevError);
         this->PrintGeneratorList();
       } else {
         this->SetGlobalGenerator(gen);
@@ -938,8 +938,8 @@ int cmake::AddCMakePaths()
     cmSystemTools::Error(
       "Could not find CMAKE_ROOT !!!\n"
       "CMake has most likely not been installed correctly.\n"
-      "Modules directory not found in\n",
-      cmSystemTools::GetCMakeRoot().c_str());
+      "Modules directory not found in\n" +
+      cmSystemTools::GetCMakeRoot());
     return 0;
   }
   this->AddCacheEntry("CMAKE_ROOT", cmSystemTools::GetCMakeRoot().c_str(),
@@ -2016,8 +2016,8 @@ void cmake::UpdateConversionPathTable()
   if (tablepath) {
     cmsys::ifstream table(tablepath->c_str());
     if (!table) {
-      cmSystemTools::Error("CMAKE_PATH_TRANSLATION_FILE set to ",
-                           tablepath->c_str(), ". CMake can not open file.");
+      cmSystemTools::Error("CMAKE_PATH_TRANSLATION_FILE set to " + *tablepath +
+                           ". CMake can not open file.");
       cmSystemTools::ReportLastSystemError("CMake can not open file.");
     } else {
       std::string a, b;
@@ -2325,8 +2325,7 @@ int cmake::GetSystemInformation(std::vector<std::string>& args)
       }
       cmGlobalGenerator* gen = this->CreateGlobalGenerator(value);
       if (!gen) {
-        cmSystemTools::Error("Could not create named generator ",
-                             value.c_str());
+        cmSystemTools::Error("Could not create named generator " + value);
         this->PrintGeneratorList();
       } else {
         this->SetGlobalGenerator(gen);
@@ -2473,7 +2472,7 @@ static bool cmakeCheckStampFile(const std::string& stampName, bool verbose)
     return true;
   }
   cmSystemTools::RemoveFile(stampTemp);
-  cmSystemTools::Error("Cannot restore timestamp ", stampName.c_str());
+  cmSystemTools::Error("Cannot restore timestamp " + stampName);
   return false;
 }
 
diff --git a/Source/cmcmd.cxx b/Source/cmcmd.cxx
index adfce37441..1139a4c16a 100644
--- a/Source/cmcmd.cxx
+++ b/Source/cmcmd.cxx
@@ -817,8 +817,8 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
     if (args[1] == "chdir" && args.size() >= 4) {
       std::string const& directory = args[2];
       if (!cmSystemTools::FileExists(directory)) {
-        cmSystemTools::Error("Directory does not exist for chdir command: ",
-                             args[2].c_str());
+        cmSystemTools::Error("Directory does not exist for chdir command: " +
+                             args[2]);
         return 1;
       }
 
@@ -1065,12 +1065,12 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
                         format) != cm::cend(knownFormats);
 
             if (!isKnown) {
-              cmSystemTools::Error("Unknown -E tar --format= argument: ",
-                                   format.c_str());
+              cmSystemTools::Error("Unknown -E tar --format= argument: " +
+                                   format);
               return 1;
             }
           } else {
-            cmSystemTools::Error("Unknown option to -E tar: ", arg.c_str());
+            cmSystemTools::Error("Unknown option to -E tar: " + arg);
             return 1;
           }
         } else {
@@ -1094,8 +1094,8 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
         ++nCompress;
       }
       if ((format == "7zip" || format == "zip") && nCompress > 0) {
-        cmSystemTools::Error("Can not use compression flags with format: ",
-                             format.c_str());
+        cmSystemTools::Error("Can not use compression flags with format: " +
+                             format);
         return 1;
       }
       if (nCompress > 1) {
@@ -1109,18 +1109,18 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
 
       if (flags.find_first_of('t') != std::string::npos) {
         if (!cmSystemTools::ListTar(outFile.c_str(), verbose)) {
-          cmSystemTools::Error("Problem listing tar: ", outFile.c_str());
+          cmSystemTools::Error("Problem listing tar: " + outFile);
           return 1;
         }
       } else if (flags.find_first_of('c') != std::string::npos) {
         if (!cmSystemTools::CreateTar(outFile.c_str(), files, compress,
                                       verbose, mtime, format)) {
-          cmSystemTools::Error("Problem creating tar: ", outFile.c_str());
+          cmSystemTools::Error("Problem creating tar: " + outFile);
           return 1;
         }
       } else if (flags.find_first_of('x') != std::string::npos) {
         if (!cmSystemTools::ExtractTar(outFile.c_str(), verbose)) {
-          cmSystemTools::Error("Problem extracting tar: ", outFile.c_str());
+          cmSystemTools::Error("Problem extracting tar: " + outFile);
           return 1;
         }
 #ifdef WIN32