anchor.diff:  @if EXIST build\windows-%longabi% set /p cleanbuild=Do you want to clean build (y/n):
   @if EXIST build\windows-%longabi% echo.
   @if /I "%cleanbuild%"=="y" RD /S /Q build\windows-%longabi%
  -@set PATH=%mesa%Python\%abi%\;%mesa%Python\%abi%\Scripts\;%mesa%flexbison\;%mesa%m4\%abi%\usr\bin\;%PATH%
  +@set PATH=%mesa%Python\;%mesa%Python\Scripts\;%mesa%flexbison\;%PATH%
   @python -m pip install -U mako
   @python -m pip freeze > requirements.txt
   @python -m pip install -r requirements.txt --upgrade
  
positive.code: @echo.
  @if EXIST %abi% RD /S /Q %abi%
  @MD %abi%
  @set dxtn=gcc -shared
  @if %abi%==x86 set dxtn=%dxtn% -m32
  @set dxtn=%dxtn% -v *.c *.h -I ..\mesa\include -Wl,--dll,--dynamicbase,--enable-auto-image-base,--nxcompat -o %abi%\dxtn.dll
  @%dxtn%
  @echo.
  @set dxtnbuilt=1
  
negative.code: )
  @cd %mesa%mesa
  @set openswr=n
  @set sconscmd=python %mesa%Python\Scripts\scons.py build=release platform=windows machine=%longabi% libgl-gdi
  @set /p openswr=Do you want to build OpenSWR drivers? (y=yes):
  @echo.
  @if /I "%openswr%"=="y" set sconscmd=%sconscmd% swr=1
  