ENH:Reworked CMake for consistency

Source/cmSourceFilesRequireCommand.cxx

@@ -0,0 +1,54 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+
+  Copyright (c) 2000 National Library of Medicine
+  All rights reserved.
+
+  See COPYRIGHT.txt for copyright details.
+
+=========================================================================*/
+#include "cmSourceFilesRequireCommand.h"
+
+// cmSourceFilesRequireCommand
+bool cmSourceFilesRequireCommand::Invoke(std::vector<std::string>& args)
+{
+  if(args.size() < 3 )
+    {
+    this->SetError("called with incorrect number of arguments");
+    return false;
+    }
+  std::vector<std::string>::iterator i = args.begin();
+  // Search to the key word SOURCES_BEGIN is found
+  // if one of the required defines is not there, then
+  // return as none of the source files will be added
+  // if the required definition is not there.
+  while(i != args.end() && (*i) != "SOURCES_BEGIN" )
+    {
+    if(!m_Makefile->GetDefinition((*i).c_str()))
+      {
+      return true;
+      }
+    i++;
+    }
+  if(i != args.end())
+    {
+    i++;
+    }
+  
+  // Add the rest of the arguments as source files
+  for(; i != args.end(); ++i)
+    {
+    cmClassFile file;
+    file.m_AbstractClass = false;
+    file.SetName((*i).c_str(), m_Makefile->GetCurrentDirectory());
+    m_Makefile->AddClass(file);
+    }
+  return true;
+}
+