coroutine/ucontext/Context.c: Include "ruby/config.h" for Solaris
getcontext, makecontext, and swapcontext seem to be available only when __EXTENSION__ is defined on Solaris.
__EXTENSION__
coroutine/ucontext/Context.c: Include "ruby/config.h" for Solaris
getcontext, makecontext, and swapcontext seem to be available only when
__EXTENSION__
is defined on Solaris.