From 395895bda72462c59e18135e98662e47f52138ba Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 13 Mar 2023 11:20:21 -0400
Subject: cmMakefile: Factor out helper to get recursion depth limit

---
 Source/cmMakefile.cxx | 26 ++++++++++++++++----------
 Source/cmMakefile.h   |  2 ++
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index d0a8958..383a818 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -453,17 +453,10 @@ bool cmMakefile::ExecuteCommand(const cmListFileFunction& lff,
   static_cast<void>(stack_manager);
 
   // Check for maximum recursion depth.
-  size_t depth = CMake_DEFAULT_RECURSION_LIMIT;
-  if (cmValue depthStr =
-        this->GetDefinition("CMAKE_MAXIMUM_RECURSION_DEPTH")) {
-    unsigned long depthUL;
-    if (cmStrToULong(depthStr.GetCStr(), &depthUL)) {
-      depth = depthUL;
-    }
-  }
-  if (this->RecursionDepth > depth) {
+  size_t depthLimit = this->GetRecursionDepthLimit();
+  if (this->RecursionDepth > depthLimit) {
     std::ostringstream e;
-    e << "Maximum recursion depth of " << depth << " exceeded";
+    e << "Maximum recursion depth of " << depthLimit << " exceeded";
     this->IssueMessage(MessageType::FATAL_ERROR, e.str());
     cmSystemTools::SetFatalErrorOccurred();
     return false;
@@ -2863,6 +2856,19 @@ bool cmMakefile::IsProjectFile(const char* filename) const
      !cmSystemTools::IsSubDirectory(filename, "/CMakeFiles"));
 }
 
+size_t cmMakefile::GetRecursionDepthLimit() const
+{
+  size_t depth = CMake_DEFAULT_RECURSION_LIMIT;
+  if (cmValue depthStr =
+        this->GetDefinition("CMAKE_MAXIMUM_RECURSION_DEPTH")) {
+    unsigned long depthUL;
+    if (cmStrToULong(depthStr.GetCStr(), &depthUL)) {
+      depth = depthUL;
+    }
+  }
+  return depth;
+}
+
 size_t cmMakefile::GetRecursionDepth() const
 {
   return this->RecursionDepth;
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index 6923a77..a43ff41 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -1023,6 +1023,8 @@ public:
                               const char* sourceFilename) const;
   bool IsProjectFile(const char* filename) const;
 
+  size_t GetRecursionDepthLimit() const;
+
   size_t GetRecursionDepth() const;
   void SetRecursionDepth(size_t recursionDepth);
 
-- 
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