Attiny84 as SPI slave

I'm trying to use Arduino 1.6.5 to program Attiny84 as SPI slave. I could upload a blink sketch following tutorial on http://highlowtech.org/?p=1695. I found a library to use Attiny84 as SPI master (GitHub - JChristensen/tinySPI: Arduino hardware SPI library for ATtiny44/84, 45/85, 461/861, 2313/4313.). I found two old threads on this topic which don't work with Arduino 1.6.5:
Using an ATtiny85 as SPI Slave - Microcontrollers - Arduino Forum
SPI ATMega (master) - ATTiny84 (slave) Problem reading data from slave - Microcontrollers - Arduino Forum

However after hours of search, I found no tutorial or library to program Attiny84 or Attiny85 as SPI slave with Arduino 1.6.

Any help would be greatly appreciated.

I found two old threads on this topic which don't work with Arduino 1.6.5:

I'm not going to post any code. I'm not going to explain what happened when I tried to compile, link, upload, and/or run that code.

Did I paraphrase you correctly?

Any help would be greatly appreciated.

I can imagine.

The codes described in old threads use deprecated avr libraries. They throw complie errors. Basically I'm looking for a working script for Attiny84/85 as SPI slave using Arduino 1.6.