+TARGET=arm-none-eabi # Or: TARGET=arm-elf
+PREFIX=${HOME}/arm-none-eabi # Install location of your final toolchain
+PARALLEL="" # Or: PARALLEL="-j 5" for 4 CPUs
+DARWIN_OPT_PATH=/opt/local # Path in which MacPorts or Fink is installed
+
+BINUTILS=binutils-2.20
+GCC=gcc-4.5.1
+NEWLIB=newlib-1.18.0
+GDB=gdb-7.2