anchor.diff:  set VCINSTALLDIR=
   set DevEnvDir=
   goto:eof
  +
  +::-----------------------------------------------------------------------------
  +:: Build and update a particular subvariant of the library
  +::
  +:: Parameters:
  +::
  +::   %1     Plain name of the .sln solution file ("StormLib_vs19.sln")
  +::   %2     Target build platform ("Win32" or "x64")
  +::   %3     Target directory for the library ("lib32", "lib32\vs2008", "lib64" or "lib64\vs2008")
  +::   %4     Subvariant of the library ("DebugAD", "ReleaseUS", ...)
  +::
  +
  +:BuildAndCopyLib
  +if not exist %1 goto:eof
  +devenv.com %1 /project "%LIB_NAME%" /rebuild "%4|%2"
  +if not exist ..\aaa goto:eof
  +xcopy.exe /Y /D .\bin\StormLib\%2\%4\*.lib ..\aaa\%3 >nul
  +goto:eof
  
positive.code: if exist "%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2019\Professional\VC\Auxiliary\Build\vcvarsall.bat" set VCVARS_2019=%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2019\Professional\VC\Auxiliary\Build\vcvarsall.bat
  if exist "%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat"   set VCVARS_2019=%PROGRAM_FILES_DIR%\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat
  
  ::Build all libraries using Visual Studio 2008 and 2017
  call :BuildLibs "%VCVARS_2008%" x86 %LIB_NAME%_vs08.sln \vs2008
  call :BuildLibs "%VCVARS_2008%" x64 %LIB_NAME%_vs08.sln \vs2008
  call :BuildLibs "%VCVARS_2019%" x86 %LIB_NAME%_vs19.sln
  
negative.code: ::
  ::   %1     Full path to the VCVARS.BAT file
  ::   %2     Target build platform (x86 or x64)
  ::   %3     Plain name of the .sln solution file ("StormLib_vs19.sln")
  ::   %4     Subdirectory for the target folder of the library ("\vs2008" or "")
  ::
  
  :BuildLibs
  if not exist %1 goto:eof
  call %1 %2
  if "%2" == "x86" set SLN_TRG=Win32
  if "%2" == "x86" set LIB_TRG=lib32%4
  if "%2" == "x64" set SLN_TRG=x64
  if "%2" == "x64" set LIB_TRG=lib64%4
  
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% DebugAD
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% DebugAS
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% DebugUD
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% DebugUS
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% ReleaseAD
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% ReleaseAS
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% ReleaseUD
  call :BuildAndCopyLib %3 %SLN_TRG% %LIB_TRG% ReleaseUS
  
  :: Restore environment variables to the old level
  set INCLUDE=%SAVE_INCLUDE%
  