$ sudo apt-get install libsdl1.2-dev:i386
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  x11proto-video-dev autopoint libpcrecpp0 libtinfo-dev libpulse-mainloop-glib0 freeglut3:i386
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libasound2-dev:i386 libavahi-client-dev:i386 libavahi-common-dev:i386 libc6-dev:i386 libcaca-dev:i386 libcaca0:i386 libdbus-1-dev:i386 libdrm-dev:i386
  libgl1-mesa-dev:i386 libglib2.0-dev:i386 libglu1-mesa-dev:i386 libice-dev:i386 libncurses5-dev:i386 libpcre3-dev:i386 libpcrecpp0:i386 libpng12-dev:i386
  libpulse-dev:i386 libpulse-mainloop-glib0:i386 libsdl1.2debian:i386 libslang2-dev:i386 libsm-dev:i386 libtinfo-dev:i386 libxext-dev:i386 libxt-dev:i386
  linux-libc-dev:i386 mesa-common-dev:i386 python3 python3-minimal python3.2 python3.2-minimal zlib1g-dev:i386
Suggested packages:
  libasound2-doc:i386 glibc-doc:i386 manpages-dev:i386 libglib2.0-doc:i386 ncurses-doc:i386 python3-doc python3-tk python3.2-doc
Recommended packages:
  gcc:i386 c-compiler:i386 python:i386
The following packages will be REMOVED:
  apparmor apport apt-xapian-index build-essential byobu command-not-found cpp dh-autoreconf g++ g++-multilib gcc gcc-multilib gconf2 gdb
  gnome-exe-thumbnailer kvm landscape-common language-selector-common libasound2-dev libavahi-client-dev libavahi-common-dev libbonobo2-0 libcaca-dev
  libcanberra-gtk3-module libdbus-1-dev libdrm-dev libgl1-mesa-dev libglib2.0-dev libglu1-mesa-dev libgnome2-0 libgnome2-bin libgnome2-common libgnomevfs2-0
  libgnomevfs2-common libice-dev libidl-common libidl0 libncurses5-dev liborbit2 libpcre3-dev libpng12-dev libpulse-dev libpython2.7 libslang2-dev libsm-dev
  libtool libxext-dev libxt-dev libxv-dev lsb-release mercurial mercurial-common mesa-common-dev python python-apport python-apt python-apt-common
  python-chardet python-crypto python-dbus python-debian python-gdbm python-gi python-gnupginterface python-httplib2 python-keyring python-launchpadlib
  python-lazr.restfulclient python-lazr.uri python-minimal python-newt python-oauth python-openssl python-pam python-pkg-resources python-problem-report
  python-pycurl python-serial python-simplejson python-software-properties python-twisted-bin python-twisted-core python-wadllib python-xapian
  python-zope.interface python2.7 python2.7-minimal qemu-kvm ttf-mscorefonts-installer ubuntu-minimal ubuntu-standard ubuntu-virt-server ufw
  unattended-upgrades update-manager-core update-notifier-common vim x11-xserver-utils
The following NEW packages will be installed:
  libasound2-dev:i386 libavahi-client-dev:i386 libavahi-common-dev:i386 libc6-dev:i386 libcaca-dev:i386 libcaca0:i386 libdbus-1-dev:i386 libdrm-dev:i386
  libgl1-mesa-dev:i386 libglib2.0-dev:i386 libglu1-mesa-dev:i386 libice-dev:i386 libncurses5-dev:i386 libpcre3-dev:i386 libpcrecpp0:i386 libpng12-dev:i386
  libpulse-dev:i386 libpulse-mainloop-glib0:i386 libsdl1.2-dev:i386 libsdl1.2debian:i386 libslang2-dev:i386 libsm-dev:i386 libtinfo-dev:i386
  libxext-dev:i386 libxt-dev:i386 linux-libc-dev:i386 mesa-common-dev:i386 python3 python3-minimal python3.2 python3.2-minimal zlib1g-dev:i386
WARNING: The following essential packages will be removed.
This should NOT be done unless you know exactly what you are doing!
  python-minimal python2.7-minimal (due to python-minimal)
0 upgraded, 32 newly installed, 98 to remove and 0 not upgraded.
Need to get 16.1 MB/17.5 MB of archives.
After this operation, 43.5 MB disk space will be freed.
You are about to do something potentially harmful.
To continue type in the phrase 'Yes, do as I say!'