clang-tidy: Enable performance-inefficient-string-concatenation

Enables the clang-tidy test performance-inefficient-string-concatenation
and replaces all inefficient string concatenations with `cmStrCat`.

Closes: #19555

1 files changed, 1 insertions, 1 deletions

diff --git a/Source/cmMakefileTargetGenerator.cxx b/Source/cmMakefileTargetGenerator.cxx
index 008248cf6f..7b263240fe 100644
--- a/Source/cmMakefileTargetGenerator.cxx
+++ b/Source/cmMakefileTargetGenerator.cxx
@@ -806,7 +806,7 @@ void cmMakefileTargetGenerator::WriteObjectBuildFile(
 
     // Expand placeholders in the commands.
     for (std::string& compileCommand : compileCommands) {
-      compileCommand = launcher + compileCommand;
+      compileCommand = cmStrCat(launcher, compileCommand);
       rulePlaceholderExpander->ExpandRuleVariables(this->LocalGenerator,
                                                    compileCommand, vars);
     }