12 files changed, 30 insertions, 52 deletions
diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index 65cd6c9..7b580e5 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -226,8 +226,6 @@ set(SRCS
   cmExportTryCompileFileGenerator.cxx
   cmExportSet.h
   cmExportSet.cxx
-  cmExportSetMap.h
-  cmExportSetMap.cxx
   cmExternalMakefileProjectGenerator.cxx
   cmExternalMakefileProjectGenerator.h
   cmExtraCodeBlocksGenerator.cxx
diff --git a/Source/cmExportBuildFileGenerator.cxx b/Source/cmExportBuildFileGenerator.cxx
index 08c6e7b..c751966 100644
--- a/Source/cmExportBuildFileGenerator.cxx
+++ b/Source/cmExportBuildFileGenerator.cxx
@@ -17,6 +17,7 @@
 #include "cmake.h"
 
 #include <map>
+#include <memory>
 #include <set>
 #include <sstream>
 #include <utility>
diff --git a/Source/cmExportCommand.cxx b/Source/cmExportCommand.cxx
index 66dcb97..2713856 100644
--- a/Source/cmExportCommand.cxx
+++ b/Source/cmExportCommand.cxx
@@ -13,7 +13,7 @@
 #include "cmArgumentParser.h"
 #include "cmExportBuildAndroidMKGenerator.h"
 #include "cmExportBuildFileGenerator.h"
-#include "cmExportSetMap.h"
+#include "cmExportSet.h"
 #include "cmGeneratedFileStream.h"
 #include "cmGlobalGenerator.h"
 #include "cmMakefile.h"
@@ -23,7 +23,6 @@
 #include "cmSystemTools.h"
 #include "cmTarget.h"
 
-class cmExportSet;
 class cmExecutionStatus;
 
 #if defined(__HAIKU__)
diff --git a/Source/cmExportInstallAndroidMKGenerator.cxx b/Source/cmExportInstallAndroidMKGenerator.cxx
index 8f7e2dd..2d732c1 100644
--- a/Source/cmExportInstallAndroidMKGenerator.cxx
+++ b/Source/cmExportInstallAndroidMKGenerator.cxx
@@ -3,6 +3,7 @@
 #include "cmExportInstallAndroidMKGenerator.h"
 
 #include <cstddef>
+#include <memory>
 #include <ostream>
 
 #include "cmExportBuildAndroidMKGenerator.h"
diff --git a/Source/cmExportInstallFileGenerator.cxx b/Source/cmExportInstallFileGenerator.cxx
index 28e8244..0009b3a 100644
--- a/Source/cmExportInstallFileGenerator.cxx
+++ b/Source/cmExportInstallFileGenerator.cxx
@@ -3,7 +3,6 @@
 #include "cmExportInstallFileGenerator.h"
 
 #include "cmExportSet.h"
-#include "cmExportSetMap.h"
 #include "cmGeneratedFileStream.h"
 #include "cmGeneratorExpression.h"
 #include "cmGeneratorTarget.h"
@@ -19,6 +18,7 @@
 #include "cmTarget.h"
 #include "cmTargetExport.h"
 
+#include <memory>
 #include <sstream>
 #include <utility>
 
diff --git a/Source/cmExportSet.cxx b/Source/cmExportSet.cxx
index 05f1b5d..a20aa9a 100644
--- a/Source/cmExportSet.cxx
+++ b/Source/cmExportSet.cxx
@@ -2,6 +2,7 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmExportSet.h"
 
+#include <tuple>
 #include <utility>
 
 #include "cmLocalGenerator.h"
@@ -30,3 +31,14 @@ void cmExportSet::AddInstallation(cmInstallExportGenerator const* installation)
 {
   this->Installations.push_back(installation);
 }
+
+cmExportSet& cmExportSetMap::operator[](const std::string& name)
+{
+  auto it = this->find(name);
+  if (it == this->end()) // Export set not found
+  {
+    auto tup_name = std::make_tuple(name);
+    it = this->emplace(std::piecewise_construct, tup_name, tup_name).first;
+  }
+  return it->second;
+}
diff --git a/Source/cmExportSet.h b/Source/cmExportSet.h
index 2eee849..f0d921f 100644
--- a/Source/cmExportSet.h
+++ b/Source/cmExportSet.h
@@ -5,6 +5,7 @@
 
 #include "cmConfigure.h" // IWYU pragma: keep
 
+#include <map>
 #include <memory>
 #include <string>
 #include <vector>
@@ -49,4 +50,16 @@ private:
   std::vector<cmInstallExportGenerator const*> Installations;
 };
 
+/// A name -> cmExportSet map with overloaded operator[].
+class cmExportSetMap : public std::map<std::string, cmExportSet>
+{
+public:
+  /** \brief Overloaded operator[].
+   *
+   * The operator is overloaded because cmExportSet has no default constructor:
+   * we do not want unnamed export sets.
+   */
+  cmExportSet& operator[](const std::string& name);
+};
+
 #endif
diff --git a/Source/cmExportSetMap.cxx b/Source/cmExportSetMap.cxx
deleted file mode 100644
index 68e76d5..0000000
--- a/Source/cmExportSetMap.cxx
+++ /dev/null
@@ -1,17 +0,0 @@
-/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-   file Copyright.txt or https://cmake.org/licensing for details.  */
-#include "cmExportSetMap.h"
-
-#include <tuple>
-#include <utility>
-
-cmExportSet& cmExportSetMap::operator[](const std::string& name)
-{
-  auto it = this->find(name);
-  if (it == this->end()) // Export set not found
-  {
-    auto tup_name = std::make_tuple(name);
-    it = this->emplace(std::piecewise_construct, tup_name, tup_name).first;
-  }
-  return it->second;
-}
diff --git a/Source/cmExportSetMap.h b/Source/cmExportSetMap.h
deleted file mode 100644
index 5764c0b..0000000
--- a/Source/cmExportSetMap.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-   file Copyright.txt or https://cmake.org/licensing for details.  */
-#ifndef cmExportSetMap_h
-#define cmExportSetMap_h
-
-#include "cmConfigure.h" // IWYU pragma: keep
-
-#include <map>
-#include <string>
-
-#include "cmExportSet.h"
-
-/// A name -> cmExportSet map with overloaded operator[].
-class cmExportSetMap : public std::map<std::string, cmExportSet>
-{
-  using derived = std::map<std::string, cmExportSet>;
-
-public:
-  /** \brief Overloaded operator[].
-   *
-   * The operator is overloaded because cmExportSet has no default constructor:
-   * we do not want unnamed export sets.
-   */
-  cmExportSet& operator[](const std::string& name);
-};
-
-#endif
diff --git a/Source/cmGlobalGenerator.h b/Source/cmGlobalGenerator.h
index d67c725..372e658 100644
--- a/Source/cmGlobalGenerator.h
+++ b/Source/cmGlobalGenerator.h
@@ -17,7 +17,7 @@
 #include "cmAlgorithms.h"
 #include "cmCustomCommandLines.h"
 #include "cmDuration.h"
-#include "cmExportSetMap.h"
+#include "cmExportSet.h"
 #include "cmStateSnapshot.h"
 #include "cmStringAlgorithms.h"
 #include "cmSystemTools.h"
diff --git a/Source/cmInstallCommand.cxx b/Source/cmInstallCommand.cxx
index 54f6cc6..0d0b453 100644
--- a/Source/cmInstallCommand.cxx
+++ b/Source/cmInstallCommand.cxx
@@ -11,7 +11,6 @@
 
 #include "cmArgumentParser.h"
 #include "cmExportSet.h"
-#include "cmExportSetMap.h"
 #include "cmGeneratorExpression.h"
 #include "cmGlobalGenerator.h"
 #include "cmInstallCommandArguments.h"
diff --git a/bootstrap b/bootstrap
index 9504250..ca5441f 100755
--- a/bootstrap
+++ b/bootstrap
@@ -307,7 +307,6 @@ CMAKE_CXX_SOURCES="\
   cmExportFileGenerator \
   cmExportInstallFileGenerator \
   cmExportSet \
-  cmExportSetMap \
   cmExportTryCompileFileGenerator \
   cmExprParserHelper \
   cmExternalMakefileProjectGenerator \