From 8f0e1f2111c046aaa240a54c211404747c911698 Mon Sep 17 00:00:00 2001
From: Marc Chevrier <marc.chevrier@gmail.com>
Date: Sat, 20 Aug 2022 11:34:19 +0200
Subject: cmMakefile: add RaiseScope for list of variables

---
 Source/cmMakefile.cxx | 12 ++++++++++++
 Source/cmMakefile.h   |  1 +
 2 files changed, 13 insertions(+)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index b228e2b..51a4b3b 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -4188,6 +4188,18 @@ void cmMakefile::RaiseScope(const std::string& var, const char* varDef)
 #endif
 }
 
+void cmMakefile::RaiseScope(const std::vector<std::string>& variables)
+{
+  for (auto const& varName : variables) {
+    if (this->IsNormalDefinitionSet(varName)) {
+      this->RaiseScope(varName, this->GetDefinition(varName));
+    } else {
+      // unset variable in parent scope
+      this->RaiseScope(varName, nullptr);
+    }
+  }
+}
+
 cmTarget* cmMakefile::AddImportedTarget(const std::string& name,
                                         cmStateEnums::TargetType type,
                                         bool global)
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index 10432a8..1763177 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -880,6 +880,7 @@ public:
   {
     this->RaiseScope(var, value.GetCStr());
   }
+  void RaiseScope(const std::vector<std::string>& variables);
 
   // push and pop loop scopes
   void PushLoopBlockBarrier();
-- 
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