Switch from using `libc` types to `::std::os::raw`. This is a breaking change due to the differences in how `c_void` is defined. `core-foundation-sys` no longer needs the `libc` dependency.
Switch from using `libc` types to `::std::os::raw`. This is a breaking change due to the differences in how `c_void` is defined. `core-foundation-sys` no longer needs the `libc` dependency.
