anchor.diff:  
   
   set out=%tmp%\msys_gz_packages.txt
  -echo xz-4.999.9beta_20100401-1-msys-1.0.13-bin.tar     > %out%
  -echo liblzma-4.999.9beta_20100401-1-msys-1.0.13-dll-1.tar   >> %out%
  -echo libbz2-1.0.5-1-msys-1.0.11-dll-1.tar   >> %out%
  +echo xz-4.999.9beta_20100401-1-msys-1.0.13-bin.tar         >  %out%
  +echo liblzma-4.999.9beta_20100401-1-msys-1.0.13-dll-1.tar  >> %out%
  +echo libbz2-1.0.5-1-msys-1.0.11-dll-1.tar                  >> %out%
   
   
   set A=for /F %%F in (%tmp%\msys_gz_packages.txt) do
  
positive.code: 
  
  rem necessary for autogen.sh
  rem echo perl-5.6.1_2-1-msys-1.0.11-bin.tar     >> %out%
  echo libcrypt-1.1_1-2-msys-1.0.11-dll-0.tar >> %out%
  echo autoconf-2.63-1-msys-1.0.11-bin.tar    >> %out%
  echo automake-1.11-1-msys-1.0.11-bin.tar    >> %out%
  echo libtool-2.2.7a-1-msys-1.0.11-bin.tar   >> %out%
  rem echo gettext-0.17-1-msys-1.0.11-bin.tar     >> %out%
  rem echo gettext-0.17-1-msys-1.0.11-dev.tar     >> %out%
  echo cvs-1.12.13-1-msys-1.0.11-bin.tar      >> %out%
  echo m4-1.4.13-1-msys-1.0.11-bin.tar        >> %out%
  
  
  rem echo libintl-0.17-2-msys-dll-8.tar          >> %out%
  rem echo libiconv-1.13.1-2-msys-1.0.13-dll-2.tar >> %out%
  
  echo bsdcpio-2.7.1-1-msys-1.0.11-bin.tar >> %out%
  echo libarchive-2.7.1-1-msys-1.0.11-dll-2.tar >> %out%
  echo libopenssl-0.9.8k-1-msys-1.0.11-dll-098.tar >> %out%
  echo zlib-1.2.3-2-msys-1.0.13-dll.tar >> %out%
  
  
  set A=for /F %%F in (%tmp%\msys_lzma_packages.txt) do
  
negative.code: echo w32api-3.14-mingw32-dev.tar           >> %out%
  echo gdb-7.1-2-mingw32-bin.tar             >> %out%
  echo binutils-2.20-1-mingw32-bin.tar       >> %out%
  echo libbz2-1.0.5-2-mingw32-dll-2.tar      >> %out%
  echo bzip2-1.0.5-2-mingw32-bin.tar         >> %out%
  
  
  
  set A=for /F %%F in (%tmp%\mingw_gz_packages.txt) do
  