Bug#521473: getcontext missing on some architectures, what to do with wvstreams and wvdial?
wvstreams and wvdial because they rely on getcontext and
setcontext, not available in armel and kfreebsd* implementations of
eglibc (and this feature won't probably be implemented soon).
Why do you think getcontext/setcontext is not available on GNU/kFreeBSD ?
It is available for a very long time already, see i.e.