build.sh

#!/bin/bash

# change these to match your environment
TARGET_HOST="arm-unknown-linux-gnueabi"
CROSS_TOOLS_PATH=~/arm-toolchain/tools/$TARGET_HOST/bin
BUILD_HOST="x86_64-linux-gnu"

# you shouldn't need to change these
PYTHON="Python-2.7.3"
CONFIGURE_ARGS="--disable-ipv6"
BUILD_LOG="build.log"

# build log goes here
rm -f $BUILD_LOG
touch $BUILD_LOG
echo "Build output will be in $BUILD_LOG"

# download dist if it doesn't already exist
if [ ! -f $PYTHON.tar.xz ] ; then
    echo "Downloading $PYTHON .."
    wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.xz >> $BUILD_LOG
fi

rm -rf $PYTHON
tar -xf $PYTHON.tar.xz
cp -p files/config.site $PYTHON
cd $PYTHON
BUILD_LOG="../$BUILD_LOG"
unset CROSS_COMPILE

# ensure static glibc is installed
rpm -qa | grep -q glibc-static
if [ $? -eq 1 ] ; then
    echo "Installing glibc-static (with sudo yum install) .."
    sudo yum install -y glibc-static >> $BUILD_LOG
fi

set -e

# first we need to build the host executables (python and Parser/pgen)
echo "Stage 1: compiling host executables .."
./configure $CONFIGURE_ARGS CONFIG_SITE="config.site" >> $BUILD_LOG
make python Parser/pgen >> $BUILD_LOG
mv python hostpython
mv Parser/pgen Parser/hostpgen
make distclean

# set up environment for cross compile - we really shouldn't blindly add to PATH
export PATH="$PATH:$CROSS_TOOLS_PATH"
export CROSS_COMPILE=arm-unknown-linux-gnueabi-

echo "Stage 1.5: patching Python for cross-compile .."
patch -p0 < ../files/Python-2.7.3-xcompile.patch

# cross compile
echo "Stage 2: cross-compiling for $TARGET_HOST .."
./configure $CONFIGURE_ARGS --build=$BUILD_HOST --host=$TARGET_HOST \
    LDFLAGS="-static -static-libgcc" CPPFLAGS="-static" CONFIG_SITE="config.site" >> $BUILD_LOG
sed -i '1r ../files/Setup' Modules/Setup
make HOSTPYTHON=./hostpython HOSTPGEN=./Parser/hostpgen CROSS_COMPILE_TARGET=yes BUILDARCH=$BUILD_HOST HOSTARCH=$TARGET_HOST >> $BUILD_LOG

sed -n -e '/Python build finished/,$p' $BUILD_LOG | grep -v 'install'
file python