Comment 13 for bug 913369

-Werror is not a good idea for open source. In a corp environment, you can make sure that everybody uses the same compiler and libraries and then every warning is essentially an error and -Werror is a good thing. But in open source, people use so many different compilers, libraries and os'es that it is impossible to guarantee no errors for every computer - e.g. my wife compiles widelands on her old mac using gcc-4.2 which barfs at __attribute__(hot) - Werror would make it hard for her to compile at all.