Android :: How Can I Build / Compile A Project Targeted For 1.5?

Probably a simple question but I've developed an app that has always been using a build target of 1.5 without issue. However, now I'm adding TextToSpeech which was introduced in 1.6. I've created a TextToSpeech wrapper that encapsulates the TextToSpeech code and I have checks in the activity so that when it does run, it should only work for 1.6 devices and above. But the trick is to get the code to run in Eclipse with a build target of 1.5. When I try to do that, of course, I get the following errors tied to my TextToSpeech wrapper class: TextToSpeech cannot be resolved." I've played around with exporting as jar, creating a library project, etc. but I cannot seem to get those to work. For a library project, it says that dependent projects must have the same or higher API level so it won't work. Some relevant code excerpts: Code...