anchor.diff:  @rem finally build again libgl-gdi and osmesa without GLES. Caveat: osmesa will not have GLES support and it may no longer
   @rem work with swr. In the end restore the original libgl-gdi with GLES support.
   @git apply -v ..\mesa-dist-win\patches\osmesa.patch
  +@echo.
   
   :configmesabuild
   @rem Configure Mesa build.
  
positive.code: @echo Beginning 2nd build pass
  @echo.
  @echo Backing softpipe+llvmpipe drivers having GLES support
  @IF EXIST %mesa%\build\windows-%longabi%\bin\opengl32.dll del %mesa%\build\windows-%longabi%\bin\opengl32.dll
  @copy %mesa%\build\windows-%longabi%\gallium\targets\libgl-gdi\opengl32.dll %mesa%\build\windows-%longabi%\bin
  @echo.
  @echo Second stage build command: %rootbuildcmd% libgl-gdi osmesa
  @echo.
  
negative.code: @echo.
  @echo Replace softpipe+llvpipe without GLES support from pass 2 with ones from pass 1
  @echo.
  @del %mesa%\mesa\build\windows-%longabi%\gallium\targets\libgl-gdi\opengl32.dll
  @copy %mesa%\mesa\build\windows-%longabi%\bin\opengl32.dll %mesa%\mesa\build\windows-%longabi%\gallium\targets\libgl-gdi
  @echo.
  
  :skipmesa
  