anchor.diff:  rem   1. Node.js ('npm' binary in PATH)
   rem   2. 7zip    ('7z'  binary in PATH)
   rem
  -rem   installer dev mode:  set FAST_REBUILD/FASTER_REBUILD to skip to frontend/installer compilation
  +rem   installer dev mode:  set SKIP_TO_FRONTEND/SKIP_TO_INSTALLER
   
   set MIN_CARDANO_BYTES=50000000
   set LIBRESSL_VERSION=2.5.3
  
positive.code: move   node_modules\daedalus-client-api\cardano-launcher.exe installers\
  del /f node_modules\daedalus-client-api\*.exe
  
  :fast_rebuild
  @echo Packaging frontend
  call npm run package -- --icon installers/icons/64x64
  @if %errorlevel% neq 0 (@echo FAILED: Failed to package the frontend
  
negative.code:     @if %errorlevel% neq 0 (@echo FAILED: stack setup --no-reinstall
  	exit /b 1)
  
  :build_installer
      call ..\scripts\appveyor-retry call stack --no-terminal build -j 2 --exec make-installer
      @if %errorlevel% equ 0 goto :built
  
  