diff --git a/Source/cmCMakeMinimumRequired.h b/Source/cmCMakeMinimumRequired.h
index d227ec69e..c94764470 100644
--- a/Source/cmCMakeMinimumRequired.h
+++ b/Source/cmCMakeMinimumRequired.h
@@ -47,6 +47,11 @@ public:
    */
   virtual bool IsInherited() {return true;}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmConfigureFileCommand.h b/Source/cmConfigureFileCommand.h
index 5eb410596..e9a01b379 100644
--- a/Source/cmConfigureFileCommand.h
+++ b/Source/cmConfigureFileCommand.h
@@ -38,6 +38,11 @@ public:
    */
   virtual const char* GetName() { return "CONFIGURE_FILE";}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * Succinct documentation.
    */
diff --git a/Source/cmElseCommand.h b/Source/cmElseCommand.h
index 45d7b3930..fa2b36b8e 100644
--- a/Source/cmElseCommand.h
+++ b/Source/cmElseCommand.h
@@ -47,6 +47,11 @@ public:
    */
   virtual bool IsInherited() {return true;}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmEndIfCommand.h b/Source/cmEndIfCommand.h
index 1e4721714..230637d45 100644
--- a/Source/cmEndIfCommand.h
+++ b/Source/cmEndIfCommand.h
@@ -47,6 +47,11 @@ public:
    */
   virtual bool IsInherited() {return true;}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmExecProgramCommand.h b/Source/cmExecProgramCommand.h
index 274d8e1e6..8fc9c7dfd 100644
--- a/Source/cmExecProgramCommand.h
+++ b/Source/cmExecProgramCommand.h
@@ -49,6 +49,11 @@ public:
   virtual const char* GetName() 
     {return "EXEC_PROGRAM";}
   
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * Succinct documentation.
    */
diff --git a/Source/cmFindFileCommand.h b/Source/cmFindFileCommand.h
index 800cf0ceb..21c07eb00 100644
--- a/Source/cmFindFileCommand.h
+++ b/Source/cmFindFileCommand.h
@@ -50,6 +50,11 @@ public:
    */
   virtual bool IsInherited() { return false;  }
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmFindLibraryCommand.h b/Source/cmFindLibraryCommand.h
index 9a3998570..dc1d219d9 100644
--- a/Source/cmFindLibraryCommand.h
+++ b/Source/cmFindLibraryCommand.h
@@ -50,6 +50,11 @@ public:
    */
   virtual bool IsInherited() {return false;}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmFindPathCommand.h b/Source/cmFindPathCommand.h
index 34d91a4d3..4fa4c75b8 100644
--- a/Source/cmFindPathCommand.h
+++ b/Source/cmFindPathCommand.h
@@ -50,6 +50,11 @@ public:
    */
   virtual bool IsInherited() {return false;}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmFindProgramCommand.h b/Source/cmFindProgramCommand.h
index 221e47508..83d840b57 100644
--- a/Source/cmFindProgramCommand.h
+++ b/Source/cmFindProgramCommand.h
@@ -50,6 +50,11 @@ public:
    */
   virtual bool IsInherited() { return false;  }
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmGetFilenameComponentCommand.h b/Source/cmGetFilenameComponentCommand.h
index 78616060c..4aee4721f 100644
--- a/Source/cmGetFilenameComponentCommand.h
+++ b/Source/cmGetFilenameComponentCommand.h
@@ -48,6 +48,11 @@ public:
    */
   virtual bool IsInherited() { return true;  }
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmMakeDirectoryCommand.h b/Source/cmMakeDirectoryCommand.h
index 908bb016b..a25a8d447 100644
--- a/Source/cmMakeDirectoryCommand.h
+++ b/Source/cmMakeDirectoryCommand.h
@@ -50,6 +50,11 @@ public:
    */
   virtual const char* GetName() { return "MAKE_DIRECTORY";}
   
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * Succinct documentation.
    */
diff --git a/Source/cmRemoveCommand.h b/Source/cmRemoveCommand.h
index 4e926b2d5..82d159252 100644
--- a/Source/cmRemoveCommand.h
+++ b/Source/cmRemoveCommand.h
@@ -47,6 +47,11 @@ public:
    */
   virtual bool IsInherited() {return true;}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmSeparateArgumentsCommand.h b/Source/cmSeparateArgumentsCommand.h
index 8974e891d..64d669f82 100644
--- a/Source/cmSeparateArgumentsCommand.h
+++ b/Source/cmSeparateArgumentsCommand.h
@@ -47,6 +47,11 @@ public:
    */
   virtual bool IsInherited() {return true;}
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */
diff --git a/Source/cmWriteFileCommand.h b/Source/cmWriteFileCommand.h
index 0c52aed8f..ef2561d27 100644
--- a/Source/cmWriteFileCommand.h
+++ b/Source/cmWriteFileCommand.h
@@ -40,6 +40,11 @@ public:
    */
   virtual bool InitialPass(std::vector<std::string> const& args);
 
+  /**
+   * This determines if the command is invoked when in script mode.
+   */
+  virtual bool IsScriptable() { return true; }
+
   /**
    * The name of the command as specified in CMakeList.txt.
    */