dprintfn not working when compiled (i.e., calling the function in the ExtCore package)

[jack-pappas]

Greg Chapman submitted this bug report to me a while back via the NuGet gallery. I'm opening an issue here to keep track of it:

Using VSExpress Web 2012, I manually created a WinForms app and used Nuget to add ExtCore to it. I then used the dprintfn function in several places. Although I compiled and ran my app in Debug mode, none of the dprintfn messages appeared in the Debug Output. When I just copied the dprintfn code into my app and used that (rather than the ExtCore version), the debug messages did appear.

I'm guessing that the NuGet ExtCore is a release build. so the Debug.WriteLines get stripped out.