build/install-build-deps.sh

   1 #!/bin/bash -e
   2
   3 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style license that can be
   5 # found in the LICENSE file.
   6
   7 # Script to install everything needed to build chromium (well, ideally, anyway)
   8 # See http://code.google.com/p/chromium/wiki/LinuxBuildInstructions
   9 # and http://code.google.com/p/chromium/wiki/LinuxBuild64Bit
  10
  11 usage() {
  12   echo "Usage: $0 [--options]"
  13   echo "Options:"
  14   echo "--[no-]syms: enable or disable installation of debugging symbols"
  15   echo "--[no-]lib32: enable or disable installation of 32 bit libraries"
  16   echo "--[no-]arm: enable or disable installation of arm cross toolchain"
  17   echo "--[no-]chromeos-fonts: enable or disable installation of Chrome OS"\
  18        "fonts"
  19   echo "--[no-]nacl: enable or disable installation of prerequisites for"\
  20        "building standalone NaCl and all its toolchains"
  21   echo "--no-prompt: silently select standard options/defaults"
  22   echo "--quick-check: quickly try to determine if dependencies are installed"
  23   echo "               (this avoids interactive prompts and sudo commands,"
  24   echo "               so might not be 100% accurate)"
  25   echo "--unsupported: attempt installation even on unsupported systems"
  26   echo "Script will prompt interactively if options not given."
  27   exit 1
  28 }
  29
  30 # Checks whether a particular package is available in the repos.
  31 # USAGE: $ package_exists <package name>
  32 package_exists() {
  33   apt-cache pkgnames | grep -x "$1" > /dev/null 2>&1
  34 }
  35
  36 # These default to on because (some) bots need them and it keeps things
  37 # simple for the bot setup if all bots just run the script in its default
  38 # mode.  Developers who don't want stuff they don't need installed on their
  39 # own workstations can pass --no-arm --no-nacl when running the script.
  40 do_inst_arm=1
  41 do_inst_nacl=1
  42
  43 while test "$1" != ""
  44 do
  45   case "$1" in
  46   --syms)                   do_inst_syms=1;;
  47   --no-syms)                do_inst_syms=0;;
  48   --lib32)                  do_inst_lib32=1;;
  49   --no-lib32)               do_inst_lib32=0;;
  50   --arm)                    do_inst_arm=1;;
  51   --no-arm)                 do_inst_arm=0;;
  52   --chromeos-fonts)         do_inst_chromeos_fonts=1;;
  53   --no-chromeos-fonts)      do_inst_chromeos_fonts=0;;
  54   --nacl)                   do_inst_nacl=1;;
  55   --no-nacl)                do_inst_nacl=0;;
  56   --no-prompt)              do_default=1
  57                             do_quietly="-qq --assume-yes"
  58     ;;
  59   --quick-check)            do_quick_check=1;;
  60   --unsupported)            do_unsupported=1;;
  61   *) usage;;
  62   esac
  63   shift
  64 done
  65
  66 # Check for lsb_release command in $PATH
  67 if ! which lsb_release > /dev/null; then
  68   echo "ERROR: lsb_release not found in \$PATH" >&2
  69   exit 1;
  70 fi
  71
  72 lsb_release=$(lsb_release --codename --short)
  73 ubuntu_codenames="(precise|quantal|raring|saucy|trusty)"
  74 if [ 0 -eq "${do_unsupported-0}" ] && [ 0 -eq "${do_quick_check-0}" ] ; then
  75   if [[ ! $lsb_release =~ $ubuntu_codenames ]]; then
  76     echo "ERROR: Only Ubuntu 12.04 (precise) through 14.04 (trusty) are"\
  77         "currently supported" >&2
  78     exit 1
  79   fi
  80
  81   if ! uname -m | egrep -q "i686|x86_64"; then
  82     echo "Only x86 architectures are currently supported" >&2
  83     exit
  84   fi
  85 fi
  86
  87 if [ "x$(id -u)" != x0 ] && [ 0 -eq "${do_quick_check-0}" ]; then
  88   echo "Running as non-root user."
  89   echo "You might have to enter your password one or more times for 'sudo'."
  90   echo
  91 fi
  92
  93 # Packages needed for chromeos only
  94 chromeos_dev_list="libbluetooth-dev"
  95
  96 # Packages needed for development
  97 dev_list="apache2.2-bin bison curl dpkg-dev elfutils devscripts fakeroot flex
  98           fonts-thai-tlwg g++ git-core gperf language-pack-da language-pack-fr
  99           language-pack-he language-pack-zh-hant libapache2-mod-php5
 100           libasound2-dev libbrlapi-dev libbz2-dev libcairo2-dev libcap-dev
 101           libcups2-dev libcurl4-gnutls-dev libdrm-dev libelf-dev libexif-dev
 102           libgbm-dev libgconf2-dev libgl1-mesa-dev libglib2.0-dev
 103           libglu1-mesa-dev libgnome-keyring-dev libgtk2.0-dev libkrb5-dev
 104           libnspr4-dev libnss3-dev libpam0g-dev libpci-dev libpulse-dev
 105           libsctp-dev libspeechd-dev libsqlite3-dev libssl-dev libudev-dev
 106           libwww-perl libxslt1-dev libxss-dev libxt-dev libxtst-dev
 107           mesa-common-dev openbox patch perl php5-cgi pkg-config python
 108           python-cherrypy3 python-dev python-psutil rpm ruby subversion
 109           ttf-dejavu-core ttf-indic-fonts ttf-kochi-gothic ttf-kochi-mincho
 110           wdiff xfonts-mathml zip $chromeos_dev_list"
 111
 112 # 64-bit systems need a minimum set of 32-bit compat packages for the pre-built
 113 # NaCl binaries. These are always needed, regardless of whether or not we want
 114 # the full 32-bit "cross-compile" support (--lib32).
 115 if file /sbin/init | grep -q 'ELF 64-bit'; then
 116   dev_list="${dev_list} libc6-i386 lib32gcc1 lib32stdc++6"
 117 fi
 118
 119 # Run-time libraries required by chromeos only
 120 chromeos_lib_list="libpulse0 libbz2-1.0"
 121
 122 # Full list of required run-time libraries
 123 lib_list="libatk1.0-0 libc6 libasound2 libcairo2 libcap2 libcups2 libexpat1
 124           libexif12 libfontconfig1 libfreetype6 libglib2.0-0 libgnome-keyring0
 125           libgtk2.0-0 libpam0g libpango1.0-0 libpci3 libpcre3 libpixman-1-0
 126           libpng12-0 libspeechd2 libstdc++6 libsqlite3-0 libx11-6
 127           libxau6 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxdmcp6
 128           libxext6 libxfixes3 libxi6 libxinerama1 libxrandr2 libxrender1
 129           libxtst6 zlib1g $chromeos_lib_list"
 130
 131 # Debugging symbols for all of the run-time libraries
 132 dbg_list="libatk1.0-dbg libc6-dbg libcairo2-dbg libfontconfig1-dbg
 133           libglib2.0-0-dbg libgtk2.0-0-dbg libpango1.0-0-dbg libpcre3-dbg
 134           libpixman-1-0-dbg libsqlite3-0-dbg libx11-6-dbg libxau6-dbg
 135           libxcb1-dbg libxcomposite1-dbg libxcursor1-dbg libxdamage1-dbg
 136           libxdmcp6-dbg libxext6-dbg libxfixes3-dbg libxi6-dbg libxinerama1-dbg
 137           libxrandr2-dbg libxrender1-dbg libxtst6-dbg zlib1g-dbg
 138           libstdc++6-4.6-dbg"
 139
 140 # arm cross toolchain packages needed to build chrome on armhf
 141 arm_list="libc6-dev-armhf-cross
 142           linux-libc-dev-armhf-cross
 143           g++-arm-linux-gnueabihf"
 144
 145 # Packages to build NaCl, its toolchains, and its ports.
 146 nacl_list="bison cmake xvfb gawk texinfo autoconf libtool
 147            libssl0.9.8:i386 lib32z1-dev
 148            libgpm2:i386 libncurses5:i386
 149            g++-mingw-w64-i686 libtinfo-dev libtinfo-dev:i386
 150            libglib2.0-0:i386 libnss3:i386
 151            libgconf-2-4:i386 libfontconfig1:i386
 152            libpango1.0-0:i386 libxi6:i386 libxcursor1:i386 libxcomposite1:i386
 153            libasound2:i386 libxdamage1:i386 libxtst6:i386 libxrandr2:i386
 154            libcap2:i386 libgtk2.0-0:i386 libxss1:i386
 155            libexif12:i386 libgl1-mesa-glx:i386"
 156
 157 # Some package names have changed over time
 158 if package_exists ttf-mscorefonts-installer; then
 159   dev_list="${dev_list} ttf-mscorefonts-installer"
 160 else
 161   dev_list="${dev_list} msttcorefonts"
 162 fi
 163 if package_exists libnspr4-dbg; then
 164   dbg_list="${dbg_list} libnspr4-dbg libnss3-dbg"
 165   lib_list="${lib_list} libnspr4 libnss3"
 166 else
 167   dbg_list="${dbg_list} libnspr4-0d-dbg libnss3-1d-dbg"
 168   lib_list="${lib_list} libnspr4-0d libnss3-1d"
 169 fi
 170 if package_exists libjpeg-dev; then
 171   dev_list="${dev_list} libjpeg-dev"
 172 else
 173   dev_list="${dev_list} libjpeg62-dev"
 174 fi
 175 if package_exists libudev1; then
 176   dev_list="${dev_list} libudev1"
 177   nacl_list="${nacl_list} libudev1:i386"
 178 else
 179   dev_list="${dev_list} libudev0"
 180   nacl_list="${nacl_list} libudev0:i386"
 181 fi
 182 if package_exists libbrlapi0.6; then
 183   dev_list="${dev_list} libbrlapi0.6"
 184 else
 185   dev_list="${dev_list} libbrlapi0.5"
 186 fi
 187
 188
 189 # Some packages are only needed if the distribution actually supports
 190 # installing them.
 191 if package_exists appmenu-gtk; then
 192   lib_list="$lib_list appmenu-gtk"
 193 fi
 194
 195 # Waits for the user to press 'Y' or 'N'. Either uppercase of lowercase is
 196 # accepted. Returns 0 for 'Y' and 1 for 'N'. If an optional parameter has
 197 # been provided to yes_no(), the function also accepts RETURN as a user input.
 198 # The parameter specifies the exit code that should be returned in that case.
 199 # The function will echo the user's selection followed by a newline character.
 200 # Users can abort the function by pressing CTRL-C. This will call "exit 1".
 201 yes_no() {
 202   if [ 0 -ne "${do_default-0}" ] ; then
 203     [ $1 -eq 0 ] && echo "Y" || echo "N"
 204     return $1
 205   fi
 206   local c
 207   while :; do
 208     c="$(trap 'stty echo -iuclc icanon 2>/dev/null' EXIT INT TERM QUIT
 209          stty -echo iuclc -icanon 2>/dev/null
 210          dd count=1 bs=1 2>/dev/null | od -An -tx1)"
 211     case "$c" in
 212       " 0a") if [ -n "$1" ]; then
 213                [ $1 -eq 0 ] && echo "Y" || echo "N"
 214                return $1
 215              fi
 216              ;;
 217       " 79") echo "Y"
 218              return 0
 219              ;;
 220       " 6e") echo "N"
 221              return 1
 222              ;;
 223       "")    echo "Aborted" >&2
 224              exit 1
 225              ;;
 226       *)     # The user pressed an unrecognized key. As we are not echoing
 227              # any incorrect user input, alert the user by ringing the bell.
 228              (tput bel) 2>/dev/null
 229              ;;
 230     esac
 231   done
 232 }
 233
 234 if test "$do_inst_syms" = "" && test 0 -eq ${do_quick_check-0}
 235 then
 236   echo "This script installs all tools and libraries needed to build Chromium."
 237   echo ""
 238   echo "For most of the libraries, it can also install debugging symbols, which"
 239   echo "will allow you to debug code in the system libraries. Most developers"
 240   echo "won't need these symbols."
 241   echo -n "Do you want me to install them for you (y/N) "
 242   if yes_no 1; then
 243     do_inst_syms=1
 244   fi
 245 fi
 246 if test "$do_inst_syms" = "1"; then
 247   echo "Including debugging symbols."
 248 else
 249   echo "Skipping debugging symbols."
 250   dbg_list=
 251 fi
 252
 253 # When cross building for arm on 64-bit systems the host binaries
 254 # that are part of v8 need to be compiled with -m32 which means
 255 # that basic multilib support is needed.
 256 if file /sbin/init | grep -q 'ELF 64-bit'; then
 257   if [ "$lsb_release" = "trusty" ]; then
 258     # gcc-multilib conflicts with the arm cross compiler in trusty but
 259     # g++-4.8-multilib gives us the 32-bit support that we need.
 260     arm_list="$arm_list g++-4.8-multilib"
 261   else
 262     arm_list="$arm_list g++-multilib"
 263   fi
 264 fi
 265
 266 if test "$do_inst_arm" = "1" ; then
 267   echo "Including ARM cross toolchain."
 268 else
 269   echo "Skipping ARM cross toolchain."
 270   arm_list=
 271 fi
 272
 273 if test "$do_inst_nacl" = "1"; then
 274   echo "Including NaCl, NaCl toolchain, NaCl ports dependencies."
 275 else
 276   echo "Skipping NaCl, NaCl toolchain, NaCl ports dependencies."
 277   nacl_list=
 278 fi
 279
 280 packages="$(
 281   echo "${dev_list} ${lib_list} ${dbg_list} ${arm_list} ${nacl_list}" |
 282   tr " " "\n" | sort -u | tr "\n" " "
 283 )"
 284
 285 if [ 1 -eq "${do_quick_check-0}" ] ; then
 286   failed_check="$(dpkg-query -W -f '${PackageSpec}:${Status}\n' \
 287     ${packages} 2>&1 | grep -v "ok installed" || :)"
 288   if [ -n "${failed_check}" ]; then
 289     echo
 290     nomatch="$(echo "${failed_check}" | \
 291       sed -e "s/^No packages found matching \(.*\).$/\1/;t;d")"
 292     missing="$(echo "${failed_check}" | \
 293       sed -e "/^No packages found matching/d;s/^\(.*\):.*$/\1/")"
 294     if [ "$nomatch" ]; then
 295       # Distinguish between packages that actually aren't available to the
 296       # system (i.e. not in any repo) and packages that just aren't known to
 297       # dpkg (i.e. managed by apt).
 298       unknown=""
 299       for p in ${nomatch}; do
 300         if apt-cache show ${p} > /dev/null 2>&1; then
 301           missing="${p}\n${missing}"
 302         else
 303           unknown="${p}\n${unknown}"
 304         fi
 305       done
 306       if [ -n "${unknown}" ]; then
 307         echo "WARNING: The following packages are unknown to your system"
 308         echo "(maybe missing a repo or need to 'sudo apt-get update'):"
 309         echo -e "${unknown}" | sed -e "s/^/  /"
 310       fi
 311     fi
 312     if [ -n "${missing}" ]; then
 313       echo "WARNING: The following packages are not installed:"
 314       echo -e "${missing}" | sed -e "s/^/  /"
 315     fi
 316     exit 1
 317   fi
 318   exit 0
 319 fi
 320
 321 sudo apt-get update
 322
 323 # We initially run "apt-get" with the --reinstall option and parse its output.
 324 # This way, we can find all the packages that need to be newly installed
 325 # without accidentally promoting any packages from "auto" to "manual".
 326 # We then re-run "apt-get" with just the list of missing packages.
 327 echo "Finding missing packages..."
 328 # Intentionally leaving $packages unquoted so it's more readable.
 329 echo "Packages required: " $packages
 330 echo
 331 new_list_cmd="sudo apt-get install --reinstall $(echo $packages)"
 332 if new_list="$(yes n | LANGUAGE=en LANG=C $new_list_cmd)"; then
 333   # We probably never hit this following line.
 334   echo "No missing packages, and the packages are up-to-date."
 335 elif [ $? -eq 1 ]; then
 336   # We expect apt-get to have exit status of 1.
 337   # This indicates that we cancelled the install with "yes n|".
 338   new_list=$(echo "$new_list" |
 339     sed -e '1,/The following NEW packages will be installed:/d;s/^  //;t;d')
 340   new_list=$(echo "$new_list" | sed 's/ *$//')
 341   if [ -z "$new_list" ] ; then
 342     echo "No missing packages, and the packages are up-to-date."
 343   else
 344     echo "Installing missing packages: $new_list."
 345     sudo apt-get install ${do_quietly-} ${new_list}
 346   fi
 347   echo
 348 else
 349   # An apt-get exit status of 100 indicates that a real error has occurred.
 350
 351   # I am intentionally leaving out the '"'s around new_list_cmd,
 352   # as this makes it easier to cut and paste the output
 353   echo "The following command failed: " ${new_list_cmd}
 354   echo
 355   echo "It produces the following output:"
 356   yes n | $new_list_cmd || true
 357   echo
 358   echo "You will have to install the above packages yourself."
 359   echo
 360   exit 100
 361 fi
 362
 363 # Install the Chrome OS default fonts. This must go after running
 364 # apt-get, since install-chromeos-fonts depends on curl.
 365 if test "$do_inst_chromeos_fonts" != "0"; then
 366   echo
 367   echo "Installing Chrome OS fonts."
 368   dir=`echo $0 | sed -r -e 's/\/[^/]+$//'`
 369   if ! sudo $dir/linux/install-chromeos-fonts.py; then
 370     echo "ERROR: The installation of the Chrome OS default fonts failed."
 371     if [ `stat -f -c %T $dir` == "nfs" ]; then
 372       echo "The reason is that your repo is installed on a remote file system."
 373     else
 374       echo "This is expected if your repo is installed on a remote file system."
 375     fi
 376     echo "It is recommended to install your repo on a local file system."
 377     echo "You can skip the installation of the Chrome OS default founts with"
 378     echo "the command line option: --no-chromeos-fonts."
 379     exit 1
 380   fi
 381 else
 382   echo "Skipping installation of Chrome OS fonts."
 383 fi
 384
 385 if test "$do_inst_nacl" = "1"; then
 386   echo "Installing symbolic links for NaCl."
 387   if [ ! -r /usr/lib/i386-linux-gnu/libcrypto.so ]; then
 388     sudo ln -fs libcrypto.so.0.9.8 /usr/lib/i386-linux-gnu/libcrypto.so
 389   fi
 390   if [ ! -r /usr/lib/i386-linux-gnu/libssl.so ]; then
 391     sudo ln -fs libssl.so.0.9.8 /usr/lib/i386-linux-gnu/libssl.so
 392   fi
 393 else
 394   echo "Skipping symbolic links for NaCl."
 395 fi
 396
 397 # Install 32bit backwards compatibility support for 64bit systems
 398 if file /sbin/init | grep -q 'ELF 64-bit'; then
 399   if test "$do_inst_lib32" != "1"
 400   then
 401     echo "NOTE: If you were expecting the option to install 32bit libs,"
 402     echo "please run with the --lib32 flag."
 403     echo
 404     echo "Installation complete."
 405     exit 0
 406   else
 407     # This conditional statement has been added to deprecate and eventually
 408     # remove support for 32bit libraries on 64bit systems. But for the time
 409     # being, we still have to support a few legacy systems (e.g. bots), where
 410     # this feature is needed.
 411     # We only even give the user the option to install these libraries, if
 412     # they explicitly requested doing so by setting the --lib32 command line
 413     # flag.
 414     # And even then, we interactively ask them one more time whether they are
 415     # absolutely sure.
 416     # In order for that to work, we must reset the ${do_inst_lib32} variable.
 417     # There are other ways to achieve the same goal. But resetting the
 418     # variable is the best way to document the intended behavior -- and to
 419     # allow us to gradually deprecate and then remove the obsolete code.
 420     if test "${do_default-0}" -ne 1; then
 421       do_inst_lib32=
 422     fi
 423   fi
 424
 425   echo "WARNING"
 426   echo
 427   echo "We no longer recommend that you use this script to install"
 428   echo "32bit libraries on a 64bit system. Instead, consider using the"
 429   echo "install-chroot.sh script to help you set up a 32bit environment"
 430   echo "for building and testing 32bit versions of Chrome."
 431   echo
 432   echo "The code for installing 32bit libraries on a 64bit system is"
 433   echo "unmaintained and might not work with modern versions of Ubuntu"
 434   echo "or Debian."
 435   if test "$do_inst_lib32" != "" ; then
 436     echo
 437     echo -n "Are you sure you want to proceed (y/N) "
 438     if yes_no 1; then
 439       do_inst_lib32=1
 440     fi
 441   fi
 442   if test "$do_inst_lib32" != "1"
 443   then
 444     exit 0
 445   fi
 446
 447   # Standard 32bit compatibility libraries
 448   echo "First, installing the limited existing 32-bit support..."
 449   cmp_list="ia32-libs lib32asound2-dev lib32stdc++6 lib32z1
 450             lib32z1-dev libc6-dev-i386 libc6-i386 g++-multilib"
 451   if [ -n "`apt-cache search lib32readline-gplv2-dev 2>/dev/null`" ]; then
 452     cmp_list="${cmp_list} lib32readline-gplv2-dev"
 453   else
 454     cmp_list="${cmp_list} lib32readline5-dev"
 455   fi
 456   sudo apt-get install ${do_quietly-} $cmp_list
 457
 458   tmp=/tmp/install-32bit.$$
 459   trap 'rm -rf "${tmp}"' EXIT INT TERM QUIT
 460   mkdir -p "${tmp}/apt/lists/partial" "${tmp}/cache" "${tmp}/partial"
 461   touch "${tmp}/status"
 462
 463   [ -r /etc/apt/apt.conf ] && cp /etc/apt/apt.conf "${tmp}/apt/"
 464   cat >>"${tmp}/apt/apt.conf" <<EOF
 465         Apt::Architecture "i386";
 466         Dir::Cache "${tmp}/cache";
 467         Dir::Cache::Archives "${tmp}/";
 468         Dir::State::Lists "${tmp}/apt/lists/";
 469         Dir::State::status "${tmp}/status";
 470 EOF
 471
 472   # Download 32bit packages
 473   echo "Computing list of available 32bit packages..."
 474   sudo apt-get -c="${tmp}/apt/apt.conf" update
 475
 476   echo "Downloading available 32bit packages..."
 477   sudo apt-get -c="${tmp}/apt/apt.conf" \
 478           --yes --download-only --force-yes --reinstall install \
 479           ${lib_list} ${dbg_list}
 480
 481   # Open packages, remove everything that is not a library, move the
 482   # library to a lib32 directory and package everything as a *.deb file.
 483   echo "Repackaging and installing 32bit packages for use on 64bit systems..."
 484   for i in ${lib_list} ${dbg_list}; do
 485     orig="$(echo "${tmp}/${i}"_*_i386.deb)"
 486     compat="$(echo "${orig}" |
 487               sed -e 's,\(_[^_/]*_\)i386\(.deb\),-ia32\1amd64\2,')"
 488     rm -rf "${tmp}/staging"
 489     msg="$(fakeroot -u sh -exc '
 490       # Unpack 32bit Debian archive
 491       umask 022
 492       mkdir -p "'"${tmp}"'/staging/dpkg/DEBIAN"
 493       cd "'"${tmp}"'/staging"
 494       ar x "'${orig}'"
 495       tar Cfx dpkg data.tar*
 496       tar zCfx dpkg/DEBIAN control.tar.gz
 497
 498       # Create a posix extended regular expression fragment that will
 499       # recognize the includes which have changed. Should be rare,
 500       # will almost always be empty.
 501       includes=`sed -n -e "s/^[0-9a-z]*  //g" \
 502                        -e "\,usr/include/,p" dpkg/DEBIAN/md5sums |
 503                   xargs -n 1 -I FILE /bin/sh -c \
 504                     "cmp -s dpkg/FILE /FILE || echo FILE" |
 505                   tr "\n" "|" |
 506                   sed -e "s,|$,,"`
 507
 508       # If empty, set it to not match anything.
 509       test -z "$includes" && includes="^//"
 510
 511       # Turn the conflicts into an extended RE for removal from the
 512       # Provides line.
 513       conflicts=`sed -n -e "/Conflicts/s/Conflicts: *//;T;s/, */|/g;p" \
 514                    dpkg/DEBIAN/control`
 515
 516       # Rename package, change architecture, remove conflicts and dependencies
 517       sed -r -i                              \
 518           -e "/Package/s/$/-ia32/"           \
 519           -e "/Architecture/s/:.*$/: amd64/" \
 520           -e "/Depends/s/:.*/: ia32-libs/"   \
 521           -e "/Provides/s/($conflicts)(, *)?//g;T1;s/, *$//;:1"   \
 522           -e "/Recommends/d"                 \
 523           -e "/Conflicts/d"                  \
 524         dpkg/DEBIAN/control
 525
 526       # Only keep files that live in "lib" directories or the includes
 527       # that have changed.
 528       sed -r -i                                                               \
 529           -e "/\/lib64\//d" -e "/\/.?bin\//d"                                 \
 530           -e "\,$includes,s,[ /]include/,&32/,g;s,include/32/,include32/,g"   \
 531           -e "s, lib/, lib32/,g"                                              \
 532           -e "s,/lib/,/lib32/,g"                                              \
 533           -e "t;d"                                                            \
 534           -e "\,^/usr/lib32/debug\(.*/lib32\),s,^/usr/lib32/debug,/usr/lib/debug," \
 535         dpkg/DEBIAN/md5sums
 536
 537       # Re-run ldconfig after installation/removal
 538       { echo "#!/bin/sh"; echo "[ \"x\$1\" = xconfigure ]&&ldconfig||:"; } \
 539         >dpkg/DEBIAN/postinst
 540       { echo "#!/bin/sh"; echo "[ \"x\$1\" = xremove ]&&ldconfig||:"; } \
 541         >dpkg/DEBIAN/postrm
 542       chmod 755 dpkg/DEBIAN/postinst dpkg/DEBIAN/postrm
 543
 544       # Remove any other control files
 545       find dpkg/DEBIAN -mindepth 1 "(" -name control -o -name md5sums -o \
 546                        -name postinst -o -name postrm ")" -o -print |
 547         xargs -r rm -rf
 548
 549       # Remove any files/dirs that live outside of "lib" directories,
 550       # or are not in our list of changed includes.
 551       find dpkg -mindepth 1 -regextype posix-extended \
 552           "(" -name DEBIAN -o -name lib -o -regex "dpkg/($includes)" ")" \
 553           -prune -o -print | tac |
 554         xargs -r -n 1 sh -c "rm \$0 2>/dev/null || rmdir \$0 2>/dev/null || : "
 555       find dpkg -name lib64 -o -name bin -o -name "?bin" |
 556         tac | xargs -r rm -rf
 557
 558       # Remove any symbolic links that were broken by the above steps.
 559       find -L dpkg -type l -print | tac | xargs -r rm -rf
 560
 561       # Rename lib to lib32, but keep debug symbols in /usr/lib/debug/usr/lib32
 562       # That is where gdb looks for them.
 563       find dpkg -type d -o -path "*/lib/*" -print |
 564         xargs -r -n 1 sh -c "
 565           i=\$(echo \"\${0}\" |
 566                sed -e s,/lib/,/lib32/,g \
 567                -e s,/usr/lib32/debug\\\\\(.*/lib32\\\\\),/usr/lib/debug\\\\1,);
 568           mkdir -p \"\${i%/*}\";
 569           mv \"\${0}\" \"\${i}\""
 570
 571       # Rename include to include32.
 572       [ -d "dpkg/usr/include" ] && mv "dpkg/usr/include" "dpkg/usr/include32"
 573
 574       # Prune any empty directories
 575       find dpkg -type d | tac | xargs -r -n 1 rmdir 2>/dev/null || :
 576
 577       # Create our own Debian package
 578       cd ..
 579       dpkg --build staging/dpkg .' 2>&1)"
 580     compat="$(eval echo $(echo "${compat}" |
 581                           sed -e 's,_[^_/]*_amd64.deb,_*_amd64.deb,'))"
 582     [ -r "${compat}" ] || {
 583       echo "${msg}" >&2
 584       echo "Failed to build new Debian archive!" >&2
 585       exit 1
 586     }
 587
 588     msg="$(sudo dpkg -i "${compat}" 2>&1)" && {
 589         echo "Installed ${compat##*/}"
 590       } || {
 591         # echo "${msg}" >&2
 592         echo "Skipped ${compat##*/}"
 593       }
 594   done
 595
 596   # Add symbolic links for developing 32bit code
 597   echo "Adding missing symbolic links, enabling 32bit code development..."
 598   for i in $(find /lib32 /usr/lib32 -maxdepth 1 -name \*.so.\* |
 599              sed -e 's/[.]so[.][0-9].*/.so/' |
 600              sort -u); do
 601     [ "x${i##*/}" = "xld-linux.so" ] && continue
 602     [ -r "$i" ] && continue
 603     j="$(ls "$i."* | sed -e 's/.*[.]so[.]\([^.]*\)$/\1/;t;d' |
 604          sort -n | tail -n 1)"
 605     [ -r "$i.$j" ] || continue
 606     sudo ln -s "${i##*/}.$j" "$i"
 607   done
 608 fi