Hi Guys,
I have tried using the script /pentest/wireless/update-aircrack.sh and also downloading and manually install installing the latest version of the aircrack-ng suit on BT2, but I seem to be running in to problems. Below is the output of the make command;

bt aircrack-ng-0.9.1 # make
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=`./evalrev` src/aircrack-ng.c src/crypto.c src/sha1-mmx.S src/common.c src/aircrack-ptw-lib.c -o aircrack-ng -lpthread
src/aircrack-ng.c: In function `show_wep_stats':
src/aircrack-ng.c:1243: error: `TIOCGWINSZ' undeclared (first use in this function)
src/aircrack-ng.c:1243: error: (Each undeclared identifier is reported only once
src/aircrack-ng.c:1243: error: for each function it appears in.)
make: *** [aircrack-ng] Error 1
Can anyone help me out I have used the search but have not found any answers as yet.....