After you download the distribution file, run the following command in the directory that you want the files installed:
tar xzvf rtk.tgz
Note that you will need to have the following packages installed to use this RTK:
binutils-avr: binary utilities for the AVR architecture.
gcc-avr (or avr-gcc): the GNU C Compiler for the
AVR architecture.
avr-libc: standard C libraries for the AVR architecture.
Because rtk.S (note the upper-case `S') is different from
rtk.s (lower-case `s'), this project can only be used in an OS that
is filename case-sensitive. This rules out all DOS or Windows platforms.
Even with winavr installed, the make utility program still cannot
properly process the assembly source files.