abort_on_exception=

/*
 *  call-seq:
 *     Thread.abort_on_exception= boolean   => true or false
 *  
 *  When set to <code>true</code>, all threads will abort if an exception is
 *  raised. Returns the new state.
 *     
 *     Thread.abort_on_exception = true
 *     t1 = Thread.new do
 *       puts  "In new thread"
 *       raise "Exception from thread"
 *     end
 *     sleep(1)
 *     puts "not reached"
 *     
 *  <em>produces:</em>
 *     
 *     In new thread
 *     prog.rb:4: Exception from thread (RuntimeError)
 *      from prog.rb:2:in `initialize'
 *      from prog.rb:2:in `new'
 *      from prog.rb:2
 */

static VALUE
rb_thread_s_abort_exc_set(self, val)
    VALUE self, val;
{
    rb_secure(4);
    ruby_thread_abort = RTEST(val);
    return val;
}