4-4. glibc
   - Download file : ftp://ftp.gnu.org/gnu/glibc/glibc-2.2.4.tar.gz
   - Download file2 ( glibc linuxthreads add-on ) : ftp://ftp.gnu.org/gnu/glibc/glibc-linuxthreads-2.2.4.tar.gz

   - Unpack the source
     # tar xvfz glibc-2.2.4.tar.gz
  
   - linux thread patch to glibc
     # cd glibc-2.2.4
     # tar xvfz ../glibc-linuxthreads-2.2.4.tar.gz

   - set the environment variable for arm-linux
     # export CC=arm-linux-gcc
 
   - configure, make and make install
     # ./configure arm-linux --target=arm-linux --prefix=/usr/local/arm-linux --enable-add-ons
     # make

   - If you see some error like the figure below, don't be confused.
     # ls /usr/local/arm-linux/include/asm/

   - Maybe you can easily find [arch] and [proc] are symbolic link file, and they are broken.
     # cd /usr/local/arm-linux/include/asm/
     # mv arch arch_old
     # mv proc proc_old
     # ln -s /usr/local/arm-linux/include/asm arch
     # ln -s /usr/local/arm-linux/include/asm/proc-armv/ proc

   - unset the environment variable
     # unset CC
    

 4-5. second compile for gcc + glibc
     # mv gcc-2.95.3 gcc-2.95.3_old

   - configure, make and make install
     # ./configure --target=arm-linux
     # make
     # make install

   - if you failed make gcc, don't worry about it :)
     in basicio.c, PATH_MAX is undeclared.    
     # vi libchill/basicio.c
   - replace [ #include <limits.h> ] to [ #include <linux/limites.h> ]
      # make ; make install

5. Building python 2.5
 - reference site
     http://whatschrisdoing.com/blog/2006/10 ··· ython-25
     http://www.ailis.de/~k/archives/19-arm- ··· wto.html

 - I found some web page of python 2.5 for ppc-linux. Above web-site is kindly explain the porting python 2.5 to ppc-linux. I was able to port python 2.5 to arm-linux by above two references.

 - Get the source of python 2.5 : http://www.python.org/ftp/python/2.5/Python-2.5.tgz
 - Get the patch of python 2.5 from Chris : http://whatschrisdoing.com/~lambacck/py ··· le.patch

 5-1. Installing Python 2.5
   - Unpack Python-2.5 source codes
     # tar xvfz Python-2.5.tar
 
   - Apply the patch to python-2.5
     # cd Python-2.5
     # cat ../Python2.5_xcompile.patch | patch -p1

   - Configure, make
     # ./configure
     # make python Parser/pgen

   - backup the excutable file for host PC
     # mv python hostpython
     # mv Parser/pgen Parser/hostpgen
 
   - clean
     # make distclean

   - set the environment values
     # export CC=arm-linux-gcc
     # export CXX=arm-linux-g++
     # export AR=arm-linux-ar
     # export LD=arm-linux-ld
     # export RANLIB=arm-linux-ranlib
     # export | grep "arm"

   - Configure python 2.5. I and Chris set the prefix /python, for easy porting to target-board later
     # ./configure --host=arm-linux --target=arm-linux --prefix=/python

   - Make
     # make HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen BLDSHARED="arm-linux-gcc -shared" CROSS_COMPILE=yes
   - You can see many of warnings, for now, just ignore it. ( if you fix this warning, please e-mail me! : hara at hara4u dot net )

   - Make install
     # make install prefix=/python HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen BLDSHARED="arm-linux-gcc -shared" CROSS_COMPILE=yes

    - If you did all of these processing without any errors, you may success porting!!! :) Congraturations!

6. NFS and Copy the port to the target board
  - I have some target board which includes ARM-PXA255 core and blabla..
  - And this board has embedded linux 2.4 core and has NFS.
 
  6-1. NFS setup
   - You can use NFS ( Network File System ) first time for porting, because the size of builded python is too big for copying to RAM area of target board.
   
   - First, make directory and change the permission
     # mkdir /nfs
     # chmod 777 /nfs
     # chown nobody nfs
     # chgrp nobody nfs

   - Make environment file
     # vi /etc/exports
            /nfs    localhost(rw,insecure)
            /nfs    164.125.xxx.xxx(rw,insecure)     
   - Do not use that IP address ( that is the IP of my school, PNU in Korea :D )

   - Turn on the target board
     # mount -t nfs -o nolock 164.125.1.1:/nfs /mnt/nfs

   - Test NFS     
     (host pc) # make /nfs/testfolder
     (target pc) #ls /mnt/nfs
   - If your target board doesn't work for NFS, please install that.

   - Execute python 2.5 on the target board
     # ( target board ) cd /mnt/nfs
     # cd python/bin
     # ./python

   - How do you think about it? Welcome to python in your target board :D
 

7. install the additional module of python
   - If you use the external module of python, just install them :)

 7-1. numarray-1.2.3
   - Reference URL : http://numpy.org/

   - Numarray is another implementation of an arrayobject for Python ...

   - set the environment values
     # export CC=arm-linux-gcc
     # export CXX=arm-linux-g++
     # export AR=arm-linux-ar
     # export LD=arm-linux-ld
     # export RANLIB=arm-linux-ranlib
     # export | grep "arm"

   - Get the source at http://sourceforge.net/project/showfile ··· %3D32367
   - Download numarray-1.2.3.tar.gz ( platform independent version )

   - build & install
     # tar xvfz numarray-1.2.3.tar.gz
     # cd numarray-1.2.3
     # ../Python-2.5/hostpython setup.py build
     # ../Python-2.5/hostpython setup.py install --prefix=/python

   - Copying the libraries of numarray
     # cd /
     # cp python nfs/ -rf

   - Test the module
     # (target board) cd /mnt/nfs
     # (target board) cd python/bin
     # (target board) ./python 'import numarray'