1 files changed, 45 insertions, 0 deletions
diff --git a/Source/cmUnsetCommand.h b/Source/cmUnsetCommand.h
new file mode 100644
index 0000000..5b07202
--- /dev/null
+++ b/Source/cmUnsetCommand.h
@@ -0,0 +1,45 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#ifndef cmUnsetCommand_h
+#define cmUnsetCommand_h
+
+#include <cmConfigure.h>
+#include <string>
+#include <vector>
+
+#include "cmCommand.h"
+
+class cmExecutionStatus;
+
+/** \class cmUnsetCommand
+ * \brief Unset a CMAKE variable
+ *
+ * cmUnsetCommand unsets or removes a variable.
+ */
+class cmUnsetCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  cmCommand* Clone() CM_OVERRIDE { return new cmUnsetCommand; }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  bool InitialPass(std::vector<std::string> const& args,
+                   cmExecutionStatus& status) CM_OVERRIDE;
+
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  bool IsScriptable() const CM_OVERRIDE { return true; }
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  std::string GetName() const CM_OVERRIDE { return "unset"; }
+};
+
+#endif