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-prompt: silently select standard options/defaults"
  20   echo "--quick-check: quickly try to determine if dependencies are installed"
  21   echo "               (this avoids interactive prompts and sudo commands,"
  22   echo "               so might not be 100% accurate)"
  23   echo "--unsupported: attempt installation even on unsupported systems"
  24   echo "Script will prompt interactively if options not given."
  25   exit 1
  26 }
  27
  28 # Checks whether a particular package is available in the repos.
  29 # USAGE: $ package_exists <package name>
  30 package_exists() {
  31   apt-cache pkgnames | grep -x "$1" > /dev/null 2>&1
  32 }
  33
  34 while test "$1" != ""
  35 do
  36   case "$1" in
  37   --syms)                   do_inst_syms=1;;
  38   --no-syms)                do_inst_syms=0;;
  39   --lib32)                  do_inst_lib32=1;;
  40   --no-lib32)               do_inst_lib32=0;;
  41   --arm)                    do_inst_arm=1;;
  42   --no-arm)                 do_inst_arm=0;;
  43   --chromeos-fonts)         do_inst_chromeos_fonts=1;;
  44   --no-chromeos-fonts)      do_inst_chromeos_fonts=0;;
  45   --no-prompt)              do_default=1
  46                             do_quietly="-qq --assume-yes"
  47     ;;
  48   --quick-check)            do_quick_check=1;;
  49   --unsupported)            do_unsupported=1;;
  50   *) usage;;
  51   esac
  52   shift
  53 done
  54
  55 ubuntu_versions="12\.04|12\.10|13\.04"
  56 ubuntu_codenames="precise|quantal|raring"
  57 ubuntu_issue="Ubuntu ($ubuntu_versions|$ubuntu_codenames)"
  58 # GCEL is an Ubuntu-derived VM image used on Google Compute Engine; /etc/issue
  59 # doesn't contain a version number so just trust that the user knows what
  60 # they're doing.
  61 gcel_issue="^GCEL"
  62
  63 if [ 0 -eq "${do_unsupported-0}" ] && [ 0 -eq "${do_quick_check-0}" ] ; then
  64   if ! egrep -q "($ubuntu_issue|$gcel_issue)" /etc/issue; then
  65     echo "ERROR: Only Ubuntu 12.04 (precise) through 13.04 (raring) are"\
  66         "currently supported" >&2
  67     exit 1
  68   fi
  69
  70   if ! uname -m | egrep -q "i686|x86_64"; then
  71     echo "Only x86 architectures are currently supported" >&2
  72     exit
  73   fi
  74 fi
  75
  76 if [ "x$(id -u)" != x0 ] && [ 0 -eq "${do_quick_check-0}" ]; then
  77   echo "Running as non-root user."
  78   echo "You might have to enter your password one or more times for 'sudo'."
  79   echo
  80 fi
  81
  82 # Packages needed for chromeos only
  83 chromeos_dev_list="libbluetooth-dev"
  84
  85 # Packages needed for development
  86 dev_list="apache2.2-bin bison curl elfutils fakeroot flex g++ git-core gperf
  87           language-pack-da language-pack-fr language-pack-he
  88           language-pack-zh-hant libapache2-mod-php5 libasound2-dev libbrlapi-dev
  89           libbz2-dev libcairo2-dev libcap-dev libcups2-dev libcurl4-gnutls-dev
  90           libdrm-dev libelf-dev libgconf2-dev libgl1-mesa-dev libglib2.0-dev
  91           libglu1-mesa-dev libgnome-keyring-dev libgtk2.0-dev libkrb5-dev
  92           libnspr4-dev libnss3-dev libpam0g-dev libpci-dev libpulse-dev
  93           libsctp-dev libspeechd-dev libsqlite3-dev libssl-dev libudev-dev
  94           libwww-perl libxslt1-dev libxss-dev libxt-dev libxtst-dev
  95           mesa-common-dev openbox patch perl php5-cgi pkg-config python
  96           python-cherrypy3 python-dev python-psutil rpm ruby subversion
  97           ttf-dejavu-core ttf-indic-fonts ttf-kochi-gothic ttf-kochi-mincho
  98           ttf-thai-tlwg wdiff xfonts-mathml $chromeos_dev_list"
  99
 100 # 64-bit systems need a minimum set of 32-bit compat packages for the pre-built
 101 # NaCl binaries. These are always needed, regardless of whether or not we want
 102 # the full 32-bit "cross-compile" support (--lib32).
 103 if file /sbin/init | grep -q 'ELF 64-bit'; then
 104   dev_list="${dev_list} libc6-i386 lib32gcc1 lib32stdc++6"
 105 fi
 106
 107 # Run-time libraries required by chromeos only
 108 chromeos_lib_list="libpulse0 libbz2-1.0"
 109
 110 # Full list of required run-time libraries
 111 lib_list="libatk1.0-0 libc6 libasound2 libcairo2 libcap2 libcups2 libexpat1
 112           libfontconfig1 libfreetype6 libglib2.0-0 libgnome-keyring0
 113           libgtk2.0-0 libpam0g libpango1.0-0 libpci3 libpcre3 libpixman-1-0
 114           libpng12-0 libspeechd2 libstdc++6 libsqlite3-0 libx11-6
 115           libxau6 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxdmcp6
 116           libxext6 libxfixes3 libxi6 libxinerama1 libxrandr2 libxrender1
 117           libxtst6 zlib1g $chromeos_lib_list"
 118
 119 # Debugging symbols for all of the run-time libraries
 120 dbg_list="libatk1.0-dbg libc6-dbg libcairo2-dbg libfontconfig1-dbg
 121           libglib2.0-0-dbg libgtk2.0-0-dbg libpango1.0-0-dbg libpcre3-dbg
 122           libpixman-1-0-dbg libsqlite3-0-dbg libx11-6-dbg libxau6-dbg
 123           libxcb1-dbg libxcomposite1-dbg libxcursor1-dbg libxdamage1-dbg
 124           libxdmcp6-dbg libxext6-dbg libxfixes3-dbg libxi6-dbg libxinerama1-dbg
 125           libxrandr2-dbg libxrender1-dbg libxtst6-dbg zlib1g-dbg
 126           libstdc++6-4.6-dbg"
 127
 128 # arm cross toolchain packages needed to build chrome on armhf
 129 arm_list="libc6-armhf-cross libc6-dev-armhf-cross libgcc1-armhf-cross
 130           libgomp1-armhf-cross linux-libc-dev-armhf-cross
 131           libgcc1-dbg-armhf-cross libgomp1-dbg-armhf-cross
 132           binutils-arm-linux-gnueabihf cpp-arm-linux-gnueabihf
 133           gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf
 134           libmudflap0-dbg-armhf-cross"
 135
 136 # Old armel cross toolchain packages
 137 armel_list="libc6-armel-cross libc6-dev-armel-cross libgcc1-armel-cross
 138             libgomp1-armel-cross linux-libc-dev-armel-cross
 139             libgcc1-dbg-armel-cross libgomp1-dbg-armel-cross
 140             binutils-arm-linux-gnueabi cpp-arm-linux-gnueabi
 141             gcc-arm-linux-gnueabi g++-arm-linux-gnueabi
 142             libmudflap0-dbg-armel-cross"
 143
 144 # TODO(sbc): remove armel once the armhf transition is complete
 145 arm_list="$arm_list $armel_list"
 146
 147 # Some package names have changed over time
 148 if package_exists ttf-mscorefonts-installer; then
 149   dev_list="${dev_list} ttf-mscorefonts-installer"
 150 else
 151   dev_list="${dev_list} msttcorefonts"
 152 fi
 153 if package_exists libnspr4-dbg; then
 154   dbg_list="${dbg_list} libnspr4-dbg libnss3-dbg"
 155   lib_list="${lib_list} libnspr4 libnss3"
 156 else
 157   dbg_list="${dbg_list} libnspr4-0d-dbg libnss3-1d-dbg"
 158   lib_list="${lib_list} libnspr4-0d libnss3-1d"
 159 fi
 160 if package_exists libjpeg-dev; then
 161   dev_list="${dev_list} libjpeg-dev"
 162 else
 163   dev_list="${dev_list} libjpeg62-dev"
 164 fi
 165 if package_exists libudev1; then
 166   dev_list="${dev_list} libudev1"
 167 else
 168   dev_list="${dev_list} libudev0"
 169 fi
 170 if package_exists libbrlapi0.6; then
 171   dev_list="${dev_list} libbrlapi0.6"
 172 else
 173   dev_list="${dev_list} libbrlapi0.5"
 174 fi
 175
 176
 177 # Some packages are only needed if the distribution actually supports
 178 # installing them.
 179 if package_exists appmenu-gtk; then
 180   lib_list="$lib_list appmenu-gtk"
 181 fi
 182
 183 # Waits for the user to press 'Y' or 'N'. Either uppercase of lowercase is
 184 # accepted. Returns 0 for 'Y' and 1 for 'N'. If an optional parameter has
 185 # been provided to yes_no(), the function also accepts RETURN as a user input.
 186 # The parameter specifies the exit code that should be returned in that case.
 187 # The function will echo the user's selection followed by a newline character.
 188 # Users can abort the function by pressing CTRL-C. This will call "exit 1".
 189 yes_no() {
 190   if [ 0 -ne "${do_default-0}" ] ; then
 191     [ $1 -eq 0 ] && echo "Y" || echo "N"
 192     return $1
 193   fi
 194   local c
 195   while :; do
 196     c="$(trap 'stty echo -iuclc icanon 2>/dev/null' EXIT INT TERM QUIT
 197          stty -echo iuclc -icanon 2>/dev/null
 198          dd count=1 bs=1 2>/dev/null | od -An -tx1)"
 199     case "$c" in
 200       " 0a") if [ -n "$1" ]; then
 201                [ $1 -eq 0 ] && echo "Y" || echo "N"
 202                return $1
 203              fi
 204              ;;
 205       " 79") echo "Y"
 206              return 0
 207              ;;
 208       " 6e") echo "N"
 209              return 1
 210              ;;
 211       "")    echo "Aborted" >&2
 212              exit 1
 213              ;;
 214       *)     # The user pressed an unrecognized key. As we are not echoing
 215              # any incorrect user input, alert the user by ringing the bell.
 216              (tput bel) 2>/dev/null
 217              ;;
 218     esac
 219   done
 220 }
 221
 222 if test "$do_inst_syms" = "" && test 0 -eq ${do_quick_check-0}
 223 then
 224   echo "This script installs all tools and libraries needed to build Chromium."
 225   echo ""
 226   echo "For most of the libraries, it can also install debugging symbols, which"
 227   echo "will allow you to debug code in the system libraries. Most developers"
 228   echo "won't need these symbols."
 229   echo -n "Do you want me to install them for you (y/N) "
 230   if yes_no 1; then
 231     do_inst_syms=1
 232   fi
 233 fi
 234 if test "$do_inst_syms" = "1"; then
 235   echo "Including debugging symbols."
 236 else
 237   echo "Skipping debugging symbols."
 238   dbg_list=
 239 fi
 240
 241 # When cross building for arm on 64-bit systems the host binaries
 242 # that are part of v8 need to be compiled with -m32 which means
 243 # that basic multilib support is needed.
 244 if file /sbin/init | grep -q 'ELF 64-bit'; then
 245   arm_list="$arm_list g++-multilib"
 246 fi
 247
 248 if test "$do_inst_arm" = "1" ; then
 249   . /etc/lsb-release
 250   if ! [ "${DISTRIB_CODENAME}" = "precise" -o \
 251       1 -eq "${do_unsupported-0}" ]; then
 252     echo "ERROR: Installing the ARM cross toolchain is only available on" \
 253          "Ubuntu precise." >&2
 254     exit 1
 255   fi
 256   echo "Including ARM cross toolchain."
 257 else
 258   echo "Skipping ARM cross toolchain."
 259   arm_list=
 260 fi
 261
 262 packages="$(echo "${dev_list} ${lib_list} ${dbg_list} ${arm_list}" | \
 263   tr " " "\n" | sort -u | tr "\n" " ")"
 264
 265 if [ 1 -eq "${do_quick_check-0}" ] ; then
 266   failed_check="$(dpkg-query -W -f '${PackageSpec}:${Status}\n' \
 267     ${packages} 2>&1 | grep -v "ok installed" || :)"
 268   if [ -n "${failed_check}" ]; then
 269     echo
 270     nomatch="$(echo "${failed_check}" | \
 271       sed -e "s/^No packages found matching \(.*\).$/\1/;t;d")"
 272     missing="$(echo "${failed_check}" | \
 273       sed -e "/^No packages found matching/d;s/^\(.*\):.*$/\1/")"
 274     if [ "$nomatch" ]; then
 275       # Distinguish between packages that actually aren't available to the
 276       # system (i.e. not in any repo) and packages that just aren't known to
 277       # dpkg (i.e. managed by apt).
 278       unknown=""
 279       for p in ${nomatch}; do
 280         if apt-cache show ${p} > /dev/null 2>&1; then
 281           missing="${p}\n${missing}"
 282         else
 283           unknown="${p}\n${unknown}"
 284         fi
 285       done
 286       if [ -n "${unknown}" ]; then
 287         echo "WARNING: The following packages are unknown to your system"
 288         echo "(maybe missing a repo or need to 'sudo apt-get update'):"
 289         echo -e "${unknown}" | sed -e "s/^/  /"
 290       fi
 291     fi
 292     if [ -n "${missing}" ]; then
 293       echo "WARNING: The following packages are not installed:"
 294       echo -e "${missing}" | sed -e "s/^/  /"
 295     fi
 296     exit 1
 297   fi
 298   exit 0
 299 fi
 300
 301 sudo apt-get update
 302
 303 # We initially run "apt-get" with the --reinstall option and parse its output.
 304 # This way, we can find all the packages that need to be newly installed
 305 # without accidentally promoting any packages from "auto" to "manual".
 306 # We then re-run "apt-get" with just the list of missing packages.
 307 echo "Finding missing packages..."
 308 # Intentionally leaving $packages unquoted so it's more readable.
 309 echo "Packages required: " $packages
 310 echo
 311 new_list_cmd="sudo apt-get install --reinstall $(echo $packages)"
 312 if new_list="$(yes n | LANGUAGE=en LANG=C $new_list_cmd)"; then
 313   # We probably never hit this following line.
 314   echo "No missing packages, and the packages are up-to-date."
 315 elif [ $? -eq 1 ]; then
 316   # We expect apt-get to have exit status of 1.
 317   # This indicates that we cancelled the install with "yes n|".
 318   new_list=$(echo "$new_list" |
 319     sed -e '1,/The following NEW packages will be installed:/d;s/^  //;t;d')
 320   new_list=$(echo "$new_list" | sed 's/ *$//')
 321   if [ -z "$new_list" ] ; then
 322     echo "No missing packages, and the packages are up-to-date."
 323   else
 324     echo "Installing missing packages: $new_list."
 325     sudo apt-get install ${do_quietly-} ${new_list}
 326   fi
 327   echo
 328 else
 329   # An apt-get exit status of 100 indicates that a real error has occurred.
 330
 331   # I am intentionally leaving out the '"'s around new_list_cmd,
 332   # as this makes it easier to cut and paste the output
 333   echo "The following command failed: " ${new_list_cmd}
 334   echo
 335   echo "It produces the following output:"
 336   yes n | $new_list_cmd || true
 337   echo
 338   echo "You will have to install the above packages yourself."
 339   echo
 340   exit 100
 341 fi
 342
 343 # Install the Chrome OS default fonts. This must go after running
 344 # apt-get, since install-chromeos-fonts depends on curl.
 345 if test "$do_inst_chromeos_fonts" != "0"; then
 346   echo
 347   echo "Installing Chrome OS fonts."
 348   dir=`echo $0 | sed -r -e 's/\/[^/]+$//'`
 349   if ! sudo $dir/linux/install-chromeos-fonts.py; then
 350     echo "ERROR: The installation of the Chrome OS default fonts failed."
 351     if [ `stat -f -c %T $dir` == "nfs" ]; then
 352       echo "The reason is that your repo is installed on a remote file system."
 353     else
 354       echo "This is expected if your repo is installed on a remote file system."
 355     fi
 356     echo "It is recommended to install your repo on a local file system."
 357     echo "You can skip the installation of the Chrome OS default founts with"
 358     echo "the command line option: --no-chromeos-fonts."
 359     exit 1
 360   fi
 361 else
 362   echo "Skipping installation of Chrome OS fonts."
 363 fi
 364
 365 # Install 32bit backwards compatibility support for 64bit systems
 366 if file /sbin/init | grep -q 'ELF 64-bit'; then
 367   if test "$do_inst_lib32" != "1"
 368   then
 369     echo "NOTE: If you were expecting the option to install 32bit libs,"
 370     echo "please run with the --lib32 flag."
 371     echo
 372     echo "Installation complete."
 373     exit 0
 374   else
 375     # This conditional statement has been added to deprecate and eventually
 376     # remove support for 32bit libraries on 64bit systems. But for the time
 377     # being, we still have to support a few legacy systems (e.g. bots), where
 378     # this feature is needed.
 379     # We only even give the user the option to install these libraries, if
 380     # they explicitly requested doing so by setting the --lib32 command line
 381     # flag.
 382     # And even then, we interactively ask them one more time whether they are
 383     # absolutely sure.
 384     # In order for that to work, we must reset the ${do_inst_lib32} variable.
 385     # There are other ways to achieve the same goal. But resetting the
 386     # variable is the best way to document the intended behavior -- and to
 387     # allow us to gradually deprecate and then remove the obsolete code.
 388     if test "${do_default-0}" -ne 1; then
 389       do_inst_lib32=
 390     fi
 391   fi
 392
 393   echo "WARNING"
 394   echo
 395   echo "We no longer recommend that you use this script to install"
 396   echo "32bit libraries on a 64bit system. Instead, consider using the"
 397   echo "install-chroot.sh script to help you set up a 32bit environment"
 398   echo "for building and testing 32bit versions of Chrome."
 399   echo
 400   echo "The code for installing 32bit libraries on a 64bit system is"
 401   echo "unmaintained and might not work with modern versions of Ubuntu"
 402   echo "or Debian."
 403   if test "$do_inst_lib32" != "" ; then
 404     echo
 405     echo -n "Are you sure you want to proceed (y/N) "
 406     if yes_no 1; then
 407       do_inst_lib32=1
 408     fi
 409   fi
 410   if test "$do_inst_lib32" != "1"
 411   then
 412     exit 0
 413   fi
 414
 415   # Standard 32bit compatibility libraries
 416   echo "First, installing the limited existing 32-bit support..."
 417   cmp_list="ia32-libs lib32asound2-dev lib32stdc++6 lib32z1
 418             lib32z1-dev libc6-dev-i386 libc6-i386 g++-multilib"
 419   if [ -n "`apt-cache search lib32readline-gplv2-dev 2>/dev/null`" ]; then
 420     cmp_list="${cmp_list} lib32readline-gplv2-dev"
 421   else
 422     cmp_list="${cmp_list} lib32readline5-dev"
 423   fi
 424   sudo apt-get install ${do_quietly-} $cmp_list
 425
 426   tmp=/tmp/install-32bit.$$
 427   trap 'rm -rf "${tmp}"' EXIT INT TERM QUIT
 428   mkdir -p "${tmp}/apt/lists/partial" "${tmp}/cache" "${tmp}/partial"
 429   touch "${tmp}/status"
 430
 431   [ -r /etc/apt/apt.conf ] && cp /etc/apt/apt.conf "${tmp}/apt/"
 432   cat >>"${tmp}/apt/apt.conf" <<EOF
 433         Apt::Architecture "i386";
 434         Dir::Cache "${tmp}/cache";
 435         Dir::Cache::Archives "${tmp}/";
 436         Dir::State::Lists "${tmp}/apt/lists/";
 437         Dir::State::status "${tmp}/status";
 438 EOF
 439
 440   # Download 32bit packages
 441   echo "Computing list of available 32bit packages..."
 442   sudo apt-get -c="${tmp}/apt/apt.conf" update
 443
 444   echo "Downloading available 32bit packages..."
 445   sudo apt-get -c="${tmp}/apt/apt.conf" \
 446           --yes --download-only --force-yes --reinstall install \
 447           ${lib_list} ${dbg_list}
 448
 449   # Open packages, remove everything that is not a library, move the
 450   # library to a lib32 directory and package everything as a *.deb file.
 451   echo "Repackaging and installing 32bit packages for use on 64bit systems..."
 452   for i in ${lib_list} ${dbg_list}; do
 453     orig="$(echo "${tmp}/${i}"_*_i386.deb)"
 454     compat="$(echo "${orig}" |
 455               sed -e 's,\(_[^_/]*_\)i386\(.deb\),-ia32\1amd64\2,')"
 456     rm -rf "${tmp}/staging"
 457     msg="$(fakeroot -u sh -exc '
 458       # Unpack 32bit Debian archive
 459       umask 022
 460       mkdir -p "'"${tmp}"'/staging/dpkg/DEBIAN"
 461       cd "'"${tmp}"'/staging"
 462       ar x "'${orig}'"
 463       tar Cfx dpkg data.tar*
 464       tar zCfx dpkg/DEBIAN control.tar.gz
 465
 466       # Create a posix extended regular expression fragment that will
 467       # recognize the includes which have changed. Should be rare,
 468       # will almost always be empty.
 469       includes=`sed -n -e "s/^[0-9a-z]*  //g" \
 470                        -e "\,usr/include/,p" dpkg/DEBIAN/md5sums |
 471                   xargs -n 1 -I FILE /bin/sh -c \
 472                     "cmp -s dpkg/FILE /FILE || echo FILE" |
 473                   tr "\n" "|" |
 474                   sed -e "s,|$,,"`
 475
 476       # If empty, set it to not match anything.
 477       test -z "$includes" && includes="^//"
 478
 479       # Turn the conflicts into an extended RE for removal from the
 480       # Provides line.
 481       conflicts=`sed -n -e "/Conflicts/s/Conflicts: *//;T;s/, */|/g;p" \
 482                    dpkg/DEBIAN/control`
 483
 484       # Rename package, change architecture, remove conflicts and dependencies
 485       sed -r -i                              \
 486           -e "/Package/s/$/-ia32/"           \
 487           -e "/Architecture/s/:.*$/: amd64/" \
 488           -e "/Depends/s/:.*/: ia32-libs/"   \
 489           -e "/Provides/s/($conflicts)(, *)?//g;T1;s/, *$//;:1"   \
 490           -e "/Recommends/d"                 \
 491           -e "/Conflicts/d"                  \
 492         dpkg/DEBIAN/control
 493
 494       # Only keep files that live in "lib" directories or the includes
 495       # that have changed.
 496       sed -r -i                                                               \
 497           -e "/\/lib64\//d" -e "/\/.?bin\//d"                                 \
 498           -e "\,$includes,s,[ /]include/,&32/,g;s,include/32/,include32/,g"   \
 499           -e "s, lib/, lib32/,g"                                              \
 500           -e "s,/lib/,/lib32/,g"                                              \
 501           -e "t;d"                                                            \
 502           -e "\,^/usr/lib32/debug\(.*/lib32\),s,^/usr/lib32/debug,/usr/lib/debug," \
 503         dpkg/DEBIAN/md5sums
 504
 505       # Re-run ldconfig after installation/removal
 506       { echo "#!/bin/sh"; echo "[ \"x\$1\" = xconfigure ]&&ldconfig||:"; } \
 507         >dpkg/DEBIAN/postinst
 508       { echo "#!/bin/sh"; echo "[ \"x\$1\" = xremove ]&&ldconfig||:"; } \
 509         >dpkg/DEBIAN/postrm
 510       chmod 755 dpkg/DEBIAN/postinst dpkg/DEBIAN/postrm
 511
 512       # Remove any other control files
 513       find dpkg/DEBIAN -mindepth 1 "(" -name control -o -name md5sums -o \
 514                        -name postinst -o -name postrm ")" -o -print |
 515         xargs -r rm -rf
 516
 517       # Remove any files/dirs that live outside of "lib" directories,
 518       # or are not in our list of changed includes.
 519       find dpkg -mindepth 1 -regextype posix-extended \
 520           "(" -name DEBIAN -o -name lib -o -regex "dpkg/($includes)" ")" \
 521           -prune -o -print | tac |
 522         xargs -r -n 1 sh -c "rm \$0 2>/dev/null || rmdir \$0 2>/dev/null || : "
 523       find dpkg -name lib64 -o -name bin -o -name "?bin" |
 524         tac | xargs -r rm -rf
 525
 526       # Remove any symbolic links that were broken by the above steps.
 527       find -L dpkg -type l -print | tac | xargs -r rm -rf
 528
 529       # Rename lib to lib32, but keep debug symbols in /usr/lib/debug/usr/lib32
 530       # That is where gdb looks for them.
 531       find dpkg -type d -o -path "*/lib/*" -print |
 532         xargs -r -n 1 sh -c "
 533           i=\$(echo \"\${0}\" |
 534                sed -e s,/lib/,/lib32/,g \
 535                -e s,/usr/lib32/debug\\\\\(.*/lib32\\\\\),/usr/lib/debug\\\\1,);
 536           mkdir -p \"\${i%/*}\";
 537           mv \"\${0}\" \"\${i}\""
 538
 539       # Rename include to include32.
 540       [ -d "dpkg/usr/include" ] && mv "dpkg/usr/include" "dpkg/usr/include32"
 541
 542       # Prune any empty directories
 543       find dpkg -type d | tac | xargs -r -n 1 rmdir 2>/dev/null || :
 544
 545       # Create our own Debian package
 546       cd ..
 547       dpkg --build staging/dpkg .' 2>&1)"
 548     compat="$(eval echo $(echo "${compat}" |
 549                           sed -e 's,_[^_/]*_amd64.deb,_*_amd64.deb,'))"
 550     [ -r "${compat}" ] || {
 551       echo "${msg}" >&2
 552       echo "Failed to build new Debian archive!" >&2
 553       exit 1
 554     }
 555
 556     msg="$(sudo dpkg -i "${compat}" 2>&1)" && {
 557         echo "Installed ${compat##*/}"
 558       } || {
 559         # echo "${msg}" >&2
 560         echo "Skipped ${compat##*/}"
 561       }
 562   done
 563
 564   # Add symbolic links for developing 32bit code
 565   echo "Adding missing symbolic links, enabling 32bit code development..."
 566   for i in $(find /lib32 /usr/lib32 -maxdepth 1 -name \*.so.\* |
 567              sed -e 's/[.]so[.][0-9].*/.so/' |
 568              sort -u); do
 569     [ "x${i##*/}" = "xld-linux.so" ] && continue
 570     [ -r "$i" ] && continue
 571     j="$(ls "$i."* | sed -e 's/.*[.]so[.]\([^.]*\)$/\1/;t;d' |
 572          sort -n | tail -n 1)"
 573     [ -r "$i.$j" ] || continue
 574     sudo ln -s "${i##*/}.$j" "$i"
 575   done
 576 fi