title: Get AVR with gcc running on fedora
body: <p>im trying to solve this issue for a few days now and i cant find any solution. 
  I got myself an Atmega88A and i want to program it on fedora. 
  I tried to program C with gcc and that went well. But as i tried to include the avr/io.h, i always get the failure that it didnt found anything. I tried to get the new version of gcc, but that gives me an error too. Would it be enough to just download the avr/io.h library and implement it somewhere in my files? or is there any way to download this all together, including also all the other libraries that i need (e.g. util/delay.h)</p>