Our clever "gcc" invocations were creating a spurious "a.out" file at the root of the repo (which just happened to be in ".gitignore" so we didn't notice it sooner). Signed-off-by: Andrew "Tianon" Page <admwiggin@gmail.com> Upstream-commit: 7f608c391dc62a712cf0d641698ed1cdc38a4e6c Component: engine