Simple bash script to set environment for building cross gcc

env-gcc-i686-elf

# File  : env-gcc-i686-elf
# Author: Mehmet Akif TAŞOVA
# Usage : To setup environment use "source env-gcc-i686-elf"
#         To deactivate environemnt, give "deactivate" command
#         set $TARGET to your target arch

export _OLD_BASH_PS1="$PS1"
export _ORIG_PATH="$PATH"

function deactivate(){
	PS1=$_OLD_BASH_PS1
	PATH="$_ORIG_PATH"
	unset PREFIX
	unset TARGET
	unset _OLD_BASH_PS1
	unset _ORIG_PATH
}

export PREFIX="$HOME/GCC/cross-i686"
export TARGET=i686-elf
export PATH="$PREFIX/bin:$PATH"

PS1="($TARGET) $PS1"