compiler warnings

[Nick Schermer]

2008/12/25 Brian J. Tarricone <bjt23 at cornell.edu>:
> Any objections?  (This'll go into trunk after we branch for 4.6, not
> before.)

I fully agree. Personally I already use quite a lot of those my self
and I bet a lot of components in Xfce will get a hard time to get them
compiling again (please add -Werror too), but it will greatly improve
the code quality (although some warnings/errors are just a bit
annoying).

Also using -fstack-protector-all -D_FORTIFY_SOURCE=2 in the list of
flags to do some buffer overflow detection in debug code.

Nick