This is the procedure I used to compile CHDK (April 2007). * Create a directory where to load the CHDK source code. > mkdir ~/chdk && cd ~/chdk * Get the CHDK source code. > svn co or > svn co * Or update the source code > cd grand && svn up * Install the cross compiler Get the sources of gcc and binutils from a GNU repository. I used the latest available version of each. Decide where the cross compiler will be on your computer. > mkdir ~/arm-elf Tell your computer you are going to run programs from that location. > export PATH=${HOME}/arm-elf/bin:$PATH Create a working area and build binutils and gcc. > mkdir ~/wa > cd ~/wa > tar xvfj ../src/rlx_dist/binutils-2.17.tar.bz2 > tar xvfj ../src/rlx_dist/gcc-4.1.2.tar.bz2 > cd binutils-2.17 > ./configur