From 6f3b9e8b9506b4631b70cf506152defa8f9e54e0 Mon Sep 17 00:00:00 2001
From: Shane Parris <shane.lee.parris@gmail.com>
Date: Thu, 9 Aug 2018 12:51:29 -0400
Subject: cmState: Clear GlobVerificationManager state on Reset

It should not persist across multiple configure rounds.

Fixes: #18208
---
 Source/cmGlobVerificationManager.cxx | 7 +++++++
 Source/cmGlobVerificationManager.h   | 3 +++
 Source/cmState.cxx                   | 1 +
 3 files changed, 11 insertions(+)

diff --git a/Source/cmGlobVerificationManager.cxx b/Source/cmGlobVerificationManager.cxx
index e23b6ea..189b517 100644
--- a/Source/cmGlobVerificationManager.cxx
+++ b/Source/cmGlobVerificationManager.cxx
@@ -170,3 +170,10 @@ void cmGlobVerificationManager::AddCacheEntry(
     value.Backtraces.emplace_back(variable, backtrace);
   }
 }
+
+void cmGlobVerificationManager::Reset()
+{
+  this->Cache.clear();
+  this->VerifyScript.clear();
+  this->VerifyStamp.clear();
+}
diff --git a/Source/cmGlobVerificationManager.h b/Source/cmGlobVerificationManager.h
index 4508602..cf04c97 100644
--- a/Source/cmGlobVerificationManager.h
+++ b/Source/cmGlobVerificationManager.h
@@ -37,6 +37,9 @@ protected:
                      const std::string& variable,
                      const cmListFileBacktrace& bt);
 
+  ///! Clear the glob cache for state reset.
+  void Reset();
+
   ///! Check targets should be written in generated build system.
   bool DoWriteVerifyTarget() const;
 
diff --git a/Source/cmState.cxx b/Source/cmState.cxx
index a57be4d..b2f6091 100644
--- a/Source/cmState.cxx
+++ b/Source/cmState.cxx
@@ -267,6 +267,7 @@ cmStateSnapshot cmState::Reset()
 {
   this->GlobalProperties.clear();
   this->PropertyDefinitions.clear();
+  this->GlobVerificationManager->Reset();
 
   cmStateDetail::PositionType pos = this->SnapshotData.Truncate();
   this->ExecutionListFiles.Truncate();
-- 
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