Add ccommand for executing commands on the system, so by using ADD_CUSTOM_COMMAND, you can make rules to do some system commands during build. Currently supported commands are copy and remove. Others will follow.

Source/CMakeLists.txt

@@ -97,6 +97,7 @@ ADD_EXECUTABLE(cmake cmakemain)
 ADD_EXECUTABLE(DumpDocumentation cmDumpDocumentation)
 
 ADD_EXECUTABLE(ctest ctest.cxx cmSystemTools.cxx cmRegularExpression.cxx)
+ADD_EXECUTABLE(ccommand ccommand.cxx cmSystemTools.cxx cmMakefile.cxx)
 
 CONFIGURE_FILE(
   ${CMake_SOURCE_DIR}/Source/cmaketest.h.in 
@@ -149,5 +150,6 @@ INCLUDE (${CMAKE_SOURCE_DIR}/Source/LocalUserOptions.cmake OPTIONAL)
 
 INSTALL_TARGETS(/bin cmake)
 INSTALL_TARGETS(/bin ctest)
+INSTALL_TARGETS(/bin ccommand)
 INSTALL_TARGETS(/bin cmaketest)
 

Source/CMakeSetup.dsw

@@ -32,6 +32,9 @@ Package=<4>
     Begin Project Dependency
     Project_Dep_Name ctest
     End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name ccommand
+    End Project Dependency
 }}}
 
 ###############################################################################
@@ -81,6 +84,21 @@ Package=<4>
 
 ###############################################################################
 
+Project: "ccommand"=.\ccommand.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+    Begin Project Dependency
+    Project_Dep_Name CMakeLib
+    End Project Dependency
+}}}
+
+###############################################################################
+
 Global:
 
 Package=<5>

Source/ccommand.cxx

@@ -0,0 +1,61 @@
+/*=========================================================================
+
+  Program:   Insight Segmentation & Registration Toolkit
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Insight Consortium. All rights reserved.
+  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+
+#include "cmMakefile.h"
+#include "cmSystemTools.h"
+
+void CMakeCommandUsage(const char* program)
+{
+  std::strstream errorStream;
+
+  errorStream << "cmake version " << cmMakefile::GetMajorVersion()
+	      << "." << cmMakefile::GetMinorVersion() << "\n";
+  errorStream << "Usage: " << program << " [command] [arguments ...]\n"
+	      << "  Available commands: \n"
+	      << "    copy file1 file2  - copy first file to the second one\n"
+	      << "    remove file1 file2 ... - remove the file(s)\n";
+  errorStream << std::ends;
+  cmSystemTools::Error(errorStream.str());
+}
+
+int main(int ac, char** av)
+{
+  std::vector<std::string> args;
+  for(int i =0; i < ac; ++i)
+    {
+    args.push_back(av[i]);
+    }
+
+  if ( args.size() > 1 )
+    {
+    if ( args[1] == "copy" && args.size() == 4 )
+      {
+      cmSystemTools::cmCopyFile(args[2].c_str(), args[3].c_str());
+      return 0;
+      }
+    if ( args[1] == "remove" && args.size() > 2 )
+      {
+      for ( int cc = 2; cc < args.size(); cc ++ )
+	{
+	cmSystemTools::RemoveFile(args[cc].c_str());
+	}
+      return 0;
+      }
+    }
+  ::CMakeCommandUsage(args[0].c_str());
+  return 1;
+}

Source/ccommand.dsp

@@ -0,0 +1,109 @@
+# Microsoft Developer Studio Project File - Name="ccommand" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Console Application" 0x0103
+
+CFG=ccommand - Win32 Debug
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE 
+!MESSAGE NMAKE /f "ccommand.mak".
+!MESSAGE 
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE 
+!MESSAGE NMAKE /f "ccommand.mak" CFG="ccommand - Win32 Debug"
+!MESSAGE 
+!MESSAGE Possible choices for configuration are:
+!MESSAGE 
+!MESSAGE "ccommand - Win32 Release" (based on "Win32 (x86) Console Application")
+!MESSAGE "ccommand - Win32 Debug" (based on "Win32 (x86) Console Application")
+!MESSAGE 
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+CPP=cl.exe
+RSC=rc.exe
+
+!IF  "$(CFG)" == "ccommand - Win32 Release"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir "Release"
+# PROP Intermediate_Dir "Release"
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
+# ADD CPP /nologo /MD /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /FD /c
+# SUBTRACT CPP /YX
+# ADD BASE RSC /l 0x409 /d "NDEBUG"
+# ADD RSC /l 0x409 /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /pdb:"ccommand.pdb" /machine:I386 /out:"ccommand.exe"
+# SUBTRACT LINK32 /pdb:none
+
+!ELSEIF  "$(CFG)" == "ccommand - Win32 Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "ccommand___Win32_Debug"
+# PROP BASE Intermediate_Dir "ccommand___Win32_Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
+# PROP Output_Dir "ccommand___Win32_Debug"
+# PROP Intermediate_Dir "ccommand___Win32_Debug"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+# ADD BASE CPP /nologo /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /GZ /c
+# ADD CPP /nologo /MDd /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /FD /GZ /c
+# SUBTRACT CPP /YX
+# ADD BASE RSC /l 0x409 /d "_DEBUG"
+# ADD RSC /l 0x409 /d "_DEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /pdb:"ccommand.pdb" /debug /machine:I386 /out:"ccommand.exe" /pdbtype:sept
+# SUBTRACT LINK32 /pdb:none
+
+!ENDIF 
+
+# Begin Target
+
+# Name "ccommand - Win32 Release"
+# Name "ccommand - Win32 Debug"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=.\ccommand.cxx
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=.\ccommand.h
+# End Source File
+# End Group
+# Begin Group "Resource Files"
+
+# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+# End Group
+# End Target
+# End Project

Source/cmake.cxx

@@ -253,6 +253,23 @@ void cmake::AddCMakePaths(const std::vector<std::string>& args)
      "Path to CMake executable.",
      cmCacheManager::INTERNAL);
 
+  // Find ccommand
+  std::string cCommand = cmSystemTools::GetFilenamePath(cMakeSelf) +
+    "/ccommand" + cmSystemTools::GetFilenameExtension(cMakeSelf);
+  if( !cmSystemTools::FileExists(cMakeSelf.c_str()))
+    {
+    cmSystemTools::Error("CMAKE can not find the command line program "
+			 "ccommand. Attempted path: ", cMakeSelf.c_str());
+    return;
+    }
+
+  // Save the value in the cache
+  cmCacheManager::GetInstance()->AddCacheEntry
+    ("CCOMMAND_COMMAND",
+     cmSystemTools::EscapeSpaces(cCommand.c_str()).c_str(),
+     "Path to CMakeCommand executable.",
+     cmCacheManager::INTERNAL);
+  
   // do CMAKE_ROOT, look for the environment variable first
   std::string cMakeRoot;
   std::string modules;