Have done something similar, and it works, but ...

... the downside is that every time someone uses a different version of your normal compiler, or a different compiler, you have an unfortunately large chance of having the build fail because a new bit of code that previously was warning free is now determined to be warning-worthy.

Not a huge problem (and better than cultivating the habit of ignoring warnings), but it is a time cost that has to be paid now and again for committing to halting the build on a static analysis failure.