# Make sure that gcc is installed. In older Ubuntu, you need to install gcc-4.4.3. But in Ubuntu 10.04 LTS, gcc-4.4.3 is installed. To do this, you can type this command on terminal.
sudo apt-get install gcc-4.4.3
# Download the lastest version of MDK3.
http://homepages.tu-darmstadt.de/~p_larbig/wlan/
# Extract the archive in folder name MDK3 and open up terminal and follow the given steps. Edit file common.mak.
cd mdk3/osdep
sudo gedit common.mak
You must find this line:
CC = $(TOOL_PREFIX)gcc
And replace it with:
CC = $(TOOL_PREFIX)gcc-4.4.3
# Save common.mak, now you can install MDK3 into your system.
sudo make
sudo make install