anchor.diff:  :: (assumes the zip command line tool is available.  See GnuWin32 zip.)
   
   :: configuration variables
  -SET klamptversion=0.8.4
  +SET klamptversion=0.8.5
   :: dependency libraries may be kept back to a prior version
  -SET klamptdepversion=0.8.4
  +SET klamptdepversion=0.8.5
   ::    this is used for Python build (VS 2015)
   SET VS90COMNTOOLS=%VS140COMNTOOLS%
   SET PYTHON27_32=D:\Python27\python.exe
  
positive.code: for %%I in (assimp.dll glpk_4_61.dll glpk_4_61.lib glew32.dll glew32.lib KrisLibrary.lib ode_double.lib tinyxml_STL.lib libcurl.lib) do copy /Y %%I ..\..\%depfolder%
  if %errorlevel% neq 0 exit /b %errorlevel%
  popd
  pushd
  cd %depfolder%
  zip ..\%depfolder%.zip *
  popd
  if %errorlevel% neq 0 exit /b %errorlevel%
  
negative.code: 
  :: build Klamp't Python bindings
  copy /y %buildfolder%\Python\setup.py Python\
  pushd Python
  for %%P in (%PYTHON_32_VERSIONS%) do (
      %%P setup.py build_ext
      if %errorlevel% neq 0 exit /b %errorlevel%
  