From fcad8d0630036cde6e99ae600e101dbbd5646c96 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 9 Mar 2023 10:17:16 -0500
Subject: cmMakefile: Improve parsing of CMAKE_MAXIMUM_RECURSION_DEPTH variable

---
 Source/cmMakefile.cxx | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 33843e2..a014776 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -455,12 +455,11 @@ bool cmMakefile::ExecuteCommand(const cmListFileFunction& lff,
 
   // Check for maximum recursion depth.
   int depth = CMake_DEFAULT_RECURSION_LIMIT;
-  cmValue depthStr = this->GetDefinition("CMAKE_MAXIMUM_RECURSION_DEPTH");
-  if (depthStr) {
-    std::istringstream s(*depthStr);
-    int d;
-    if (s >> d) {
-      depth = d;
+  if (cmValue depthStr =
+        this->GetDefinition("CMAKE_MAXIMUM_RECURSION_DEPTH")) {
+    unsigned long depthUL;
+    if (cmStrToULong(depthStr.GetCStr(), &depthUL)) {
+      depth = static_cast<int>(depthUL);
     }
   }
   if (this->RecursionDepth > depth) {
-- 
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