anchor.diff:  @echo build-configuration is the build configuration used for packaging (default is Debug)
   
   :eof
  -pause
  -exit /B 1+@pause
  +@exit /B 1
positive.code: nuget pack ..\Adapters\Kephas.Npgsql\Package.nuspec -BasePath ..\Adapters\Kephas.Npgsql -Symbols -properties Configuration=%BuildConfiguration%;Version=%PackageVersion%;RefVersion=%PackageRefVersion%
  
  @echo Done.
  pause
  
  goto :eof
  :usage
  @echo Usage: %0 ^<version^> ^<ref-version^> [^<build-configuration^> = Debug]
  @echo version is the package version number
  
negative.code: if [%1]==[] goto usage
  if [%2]==[] goto usage
  set BuildConfiguration=%3
  if "%BuildConfiguration%"=="" set BuildConfiguration=Debug
  
  set PackageVersion=%1
  set PackageRefVersion=%2
  