Building and running node-webkit for ARM This is based on the script available at http://code.google.com/p/chromium/wiki/LinuxChromiumArm#Recipe3:_Packaged/Automated_Cross_compiling

install-run-deps.txt

=== Relevant links
https://help.ubuntu.com/community/MultiArch
http://unix.stackexchange.com/questions/60282/can-one-install-an-armel-ubuntu-package-on-armhf-ubuntu-system

=== Setup multiarch for armel
Create
  '/etc/dpkg/dpkg.cfg.d/multiarch'
containing
  'foreign-architecture armel'.

dpkg --print-foreign-architectures
  to get a list of the foreign architectures you have added
dpkg-architecture -qDEB_HOST_MULTIARCH
  to see the multiarch pathname for your system's native architecture

Entries in /etc/apt/sources.list also get an extra arch field, for instance:
  deb [arch=armhf,armel] http://archive.ubuntu.com/ubuntu precise main

After an "apt-get update" to refresh the package list, you can just install an available multiarch-ready library by specifying the architecture after a colon, for instance 
  apt-get install libattr1-dev:armel
This has been working in Ubuntu since 11.04.

=== Installing node-webkit dependencies
Install the following packages:
libc6:armel libx11-6:armel libxrandr2:armel libnss3:armel libgtk2.0-0:armel
libudev0:armel libstdc++6:armel libgconf2-4:armel libasound2:armel

You can check any missing shared libraries by running

node-webkit-arm-setup.sh

#!/bin/bash
set -o nounset
set -o errexit

#@
#@ THIS HAS BEEN MODIFIED TO BUILD NODE-WEBKIT ON UBUNTU 12.04 ARMEL or ARMHF
#@
#@ The typical usage for this tool is:
#@
#@ Install cross toolchain (do this only once per system)
#@
#@  build/install-build-deps.sh --arm
#@
#@  you may also want to:
#@   build/install-build-deps.sh
#@   build/linux/install-arm-sysroot.py (should already be done by hooks)
#@   sudo apt-get install g++-multilib  gcc-multilib
#@
#@
#@  build chrome with the cross toolchain
#@  chrome-setup.sh configure-chrome
#@  chrome-setup.sh make-chrome
#@  chrome-setup.sh package-chrome
#@  now copy the chrome tarball (chrome-arm.tgz) to your are device


readonly SYSROOT=$(pwd)/arm-sysroot
readonly PARALLELISM=20
readonly GYP_DEFINES="\
  target_arch=arm \
"

#@
#@
configure-chrome() {
  [ ! -d ${SYSROOT} ] && exit "arm root not found (run install-build-deps.sh --arm)"
  export CXX=arm-linux-gnueabi-g++
  export CC=arm-linux-gnueabi-gcc
  export AR=arm-linux-gnueabi-ar
  export AS=arm-linux-gnueabi-as
  export RANLIB=arm-linux-gnueabi-ranlib
  export CXX_host=g++
  export CC_host=gcc
  export GYP_DEFINES
  # note this reads GYP_DEFINES
  gclient runhooks
}

#@
#@
configure-chrome-hf() {
  [ ! -d ${SYSROOT} ] && exit "arm root not found (run install-build-deps.sh --arm)"
  export CXX=arm-linux-gnueabihf-g++
  export CC=arm-linux-gnueabihf-gcc
  export AR=arm-linux-gnueabihf-ar
  export AS=arm-linux-gnueabihf-as
  export RANLIB=arm-linux-gnueabihf-ranlib
  export CXX_host=g++
  export CC_host=gcc
  export GYP_DEFINES
  # note this reads GYP_DEFINES
  gclient runhooks
}


build-targets() {
  [ ! -d ${SYSROOT} ] && exit "arm root not found"
  # $CXX should have been baked into both the ninja
  # files and the Makefiles by this time, but due
  # to several issues/bugs we need to set CXX during
  # the build too.
  # Ninja needs it since ld_bfd.py reads this env var
  # and ninja doesn't export it.
  # Make seems to need it otherwise it defines the
  # linker command incorrectly.
  # TODO(sbc): remove this
  export CXX=arm-linux-gnueabi-g++

  if [ "${GYP_GENERATORS:=}" == "ninja" ]; then
    set -x
    ninja -C ${GYP_GENERATOR_OUTPUT:=.}/out/Release $*
  else
    set -x
    make BUILDTYPE=Release -j ${PARALLELISM} $*
  fi
}

build-targets-hf() {
  [ ! -d ${SYSROOT} ] && exit "arm root not found"
  # $CXX should have been baked into both the ninja
  # files and the Makefiles by this time, but due
  # to several issues/bugs we need to set CXX during
  # the build too.
  # Ninja needs it since ld_bfd.py reads this env var
  # and ninja doesn't export it.
  # Make seems to need it otherwise it defines the
  # linker command incorrectly.
  # TODO(sbc): remove this
  export CXX=arm-linux-gnueabihf-g++

  if [ "${GYP_GENERATORS:=}" == "ninja" ]; then
    set -x
    ninja -C ${GYP_GENERATOR_OUTPUT:=.}/out/Release $*
  else
    set -x
    make BUILDTYPE=Release -j ${PARALLELISM} $*
  fi
}

#@
#@ Make node-webkit binaries (pass -v, or V=99 in you
#@ want verbosity in make/ninja respectively.
make-chrome() {
  build-targets nw $*
}

#@
#@ Make node-webkit binaries (pass -v, or V=99 in you
#@ want verbosity in make/ninja respectively.
make-chrome-hf() {
  build-targets-hf nw $*
}


package-chrome() {
  local OUT=${GYP_GENERATOR_OUTPUT:=.}/out/Release
  rm -rf ${OUT}/nw-arm
  mkdir ${OUT}/nw-arm
  cp -r ${OUT}/nw \
     ${OUT}/lib*.so \
     ${OUT}/nw.pak \
     ${OUT}/nw-arm
  tar cfvz ${OUT}/nw-arm.tgz -C ${OUT} nw-arm
  echo "chrome packaged in chrome-arm.tgz"
}

######################################################################
# DISPATCH
######################################################################
Usage() {
  egrep "^#@" $0 | cut --bytes=3-
}


if [[ $# -eq 0 ]] ; then
  echo "you must specify a mode on the commandline:"
  echo
  Usage
  exit -1
elif [[ "$(type -t $1)" != "function" ]]; then
  echo "ERROR: unknown function '$1'." >&2
  echo "For help, try:"
  echo "    $0 help"
  exit 1
else
  "$@"
fi