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 "$1" in
  46   --syms)                   do_inst_syms=1;;
  47   --no-syms)                do_inst_syms=0;;
  48   --lib32)                  do_inst_lib32=1;;
  49   --no-lib32)               do_inst_lib32=0;;
  50   --arm)                    do_inst_arm=1;;
  51   --no-arm)                 do_inst_arm=0;;
  52   --chromeos-fonts)         do_inst_chromeos_fonts=1;;
  53   --no-chromeos-fonts)      do_inst_chromeos_fonts=0;;
  54   --nacl)                   do_inst_nacl=1;;
  55   --no-nacl)                do_inst_nacl=0;;
  56   --no-prompt)              do_default=1
  57                             do_quietly="-qq --assume-yes"
  58     ;;
  59   --quick-check)            do_quick_check=1;;
  60   --unsupported)            do_unsupported=1;;
  61   *) usage;;
  62   esac
  63   shift
  64 done
  65
  66 ubuntu_versions="12\.04|12\.10|13\.04|13\.10"
  67 ubuntu_codenames="precise|quantal|raring|saucy"
  68 ubuntu_issue="Ubuntu ($ubuntu_versions|$ubuntu_codenames)"
  69 # GCEL is an Ubuntu-derived VM image used on Google Compute Engine; /etc/issue
  70 # doesn't contain a version number so just trust that the user knows what
  71 # they're doing.
  72 gcel_issue="^GCEL"
  73
  74 if [ 0 -eq "${do_unsupported-0}" ] && [ 0 -eq "${do_quick_check-0}" ] ; then
  75   if ! egrep -q "($ubuntu_issue|$gcel_issue)" /etc/issue; then
  76     echo "ERROR: Only Ubuntu 12.04 (precise) through 13.10 (saucy) are"\
  77         "currently supported" >&2
  78     exit 1
  79   fi
  80
  81   if ! uname -m | egrep -q "i686|x86_64"; then
  82     echo "Only x86 architectures are currently supported" >&2
  83     exit
  84   fi
  85 fi
  86
  87 if [ "x$(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 fakeroot flex g++ git-core
  98           gperf language-pack-da language-pack-fr language-pack-he
  99           language-pack-zh-hant libapache2-mod-php5 libasound2-dev libbrlapi-dev
 100           libbz2-dev libcairo2-dev libcap-dev libcups2-dev libcurl4-gnutls-dev
 101           libdrm-dev libelf-dev libgconf2-dev libgl1-mesa-dev libglib2.0-dev
 102           libglu1-mesa-dev libgnome-keyring-dev libgtk2.0-dev libkrb5-dev
 103           libnspr4-dev libnss3-dev libpam0g-dev libpci-dev libpulse-dev
 104           libsctp-dev libspeechd-dev libsqlite3-dev libssl-dev libudev-dev
 105           libwww-perl libxslt1-dev libxss-dev libxt-dev libxtst-dev
 106           mesa-common-dev openbox patch perl php5-cgi pkg-config python
 107           python-cherrypy3 python-dev python-psutil rpm ruby subversion
 108           ttf-dejavu-core ttf-indic-fonts ttf-kochi-gothic ttf-kochi-mincho
 109           wdiff xfonts-mathml $chromeos_dev_list"
 110
 111 # 64-bit systems need a minimum set of 32-bit compat packages for the pre-built
 112 # NaCl binaries. These are always needed, regardless of whether or not we want
 113 # the full 32-bit "cross-compile" support (--lib32).
 114 if file /sbin/init | grep -q 'ELF 64-bit'; then
 115   dev_list="${dev_list} libc6-i386 lib32gcc1 lib32stdc++6"
 116 fi
 117
 118 # Run-time libraries required by chromeos only
 119 chromeos_lib_list="libpulse0 libbz2-1.0"
 120
 121 # Full list of required run-time libraries
 122 lib_list="libatk1.0-0 libc6 libasound2 libcairo2 libcap2 libcups2 libexpat1
 123           libfontconfig1 libfreetype6 libglib2.0-0 libgnome-keyring0
 124           libgtk2.0-0 libpam0g libpango1.0-0 libpci3 libpcre3 libpixman-1-0
 125           libpng12-0 libspeechd2 libstdc++6 libsqlite3-0 libx11-6
 126           libxau6 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxdmcp6
 127           libxext6 libxfixes3 libxi6 libxinerama1 libxrandr2 libxrender1
 128           libxtst6 zlib1g $chromeos_lib_list"
 129
 130 # Debugging symbols for all of the run-time libraries
 131 dbg_list="libatk1.0-dbg libc6-dbg libcairo2-dbg libfontconfig1-dbg
 132           libglib2.0-0-dbg libgtk2.0-0-dbg libpango1.0-0-dbg libpcre3-dbg
 133           libpixman-1-0-dbg libsqlite3-0-dbg libx11-6-dbg libxau6-dbg
 134           libxcb1-dbg libxcomposite1-dbg libxcursor1-dbg libxdamage1-dbg
 135           libxdmcp6-dbg libxext6-dbg libxfixes3-dbg libxi6-dbg libxinerama1-dbg
 136           libxrandr2-dbg libxrender1-dbg libxtst6-dbg zlib1g-dbg
 137           libstdc++6-4.6-dbg"
 138
 139 # arm cross toolchain packages needed to build chrome on armhf
 140 arm_list="libc6-armhf-cross libc6-dev-armhf-cross libgcc1-armhf-cross
 141           libgomp1-armhf-cross linux-libc-dev-armhf-cross
 142           libgcc1-dbg-armhf-cross libgomp1-dbg-armhf-cross
 143           binutils-arm-linux-gnueabihf cpp-arm-linux-gnueabihf
 144           gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf
 145           libmudflap0-dbg-armhf-cross"
 146
 147 # Old armel cross toolchain packages
 148 armel_list="libc6-armel-cross libc6-dev-armel-cross libgcc1-armel-cross
 149             libgomp1-armel-cross linux-libc-dev-armel-cross
 150             libgcc1-dbg-armel-cross libgomp1-dbg-armel-cross
 151             binutils-arm-linux-gnueabi cpp-arm-linux-gnueabi
 152             gcc-arm-linux-gnueabi g++-arm-linux-gnueabi
 153             libmudflap0-dbg-armel-cross"
 154
 155 # TODO(sbc): remove armel once the armhf transition is complete
 156 arm_list="$arm_list $armel_list"
 157
 158 # Packages to build standalone NaCl and all its toolchains.
 159 nacl_list="g++-mingw-w64-i686 libtinfo-dev:i386"
 160
 161 # Some package names have changed over time
 162 if package_exists ttf-mscorefonts-installer; then
 163   dev_list="${dev_list} ttf-mscorefonts-installer"
 164 else
 165   dev_list="${dev_list} msttcorefonts"
 166 fi
 167 if package_exists libnspr4-dbg; then
 168   dbg_list="${dbg_list} libnspr4-dbg libnss3-dbg"
 169   lib_list="${lib_list} libnspr4 libnss3"
 170 else
 171   dbg_list="${dbg_list} libnspr4-0d-dbg libnss3-1d-dbg"
 172   lib_list="${lib_list} libnspr4-0d libnss3-1d"
 173 fi
 174 if package_exists libjpeg-dev; then
 175   dev_list="${dev_list} libjpeg-dev"
 176 else
 177   dev_list="${dev_list} libjpeg62-dev"
 178 fi
 179 if package_exists libudev1; then
 180   dev_list="${dev_list} libudev1"
 181 else
 182   dev_list="${dev_list} libudev0"
 183 fi
 184 if package_exists libbrlapi0.6; then
 185   dev_list="${dev_list} libbrlapi0.6"
 186 else
 187   dev_list="${dev_list} libbrlapi0.5"
 188 fi
 189
 190
 191 # Some packages are only needed if the distribution actually supports
 192 # installing them.
 193 if package_exists appmenu-gtk; then
 194   lib_list="$lib_list appmenu-gtk"
 195 fi
 196
 197 # Waits for the user to press 'Y' or 'N'. Either uppercase of lowercase is
 198 # accepted. Returns 0 for 'Y' and 1 for 'N'. If an optional parameter has
 199 # been provided to yes_no(), the function also accepts RETURN as a user input.
 200 # The parameter specifies the exit code that should be returned in that case.
 201 # The function will echo the user's selection followed by a newline character.
 202 # Users can abort the function by pressing CTRL-C. This will call "exit 1".
 203 yes_no() {
 204   if [ 0 -ne "${do_default-0}" ] ; then
 205     [ $1 -eq 0 ] && echo "Y" || echo "N"
 206     return $1
 207   fi
 208   local c
 209   while :; do
 210     c="$(trap 'stty echo -iuclc icanon 2>/dev/null' EXIT INT TERM QUIT
 211          stty -echo iuclc -icanon 2>/dev/null
 212          dd count=1 bs=1 2>/dev/null | od -An -tx1)"
 213     case "$c" in
 214       " 0a") if [ -n "$1" ]; then
 215                [ $1 -eq 0 ] && echo "Y" || echo "N"
 216                return $1
 217              fi
 218              ;;
 219       " 79") echo "Y"
 220              return 0
 221              ;;
 222       " 6e") echo "N"
 223              return 1
 224              ;;
 225       "")    echo "Aborted" >&2
 226              exit 1
 227              ;;
 228       *)     # The user pressed an unrecognized key. As we are not echoing
 229              # any incorrect user input, alert the user by ringing the bell.
 230              (tput bel) 2>/dev/null
 231              ;;
 232     esac
 233   done
 234 }
 235
 236 if test "$do_inst_syms" = "" && test 0 -eq ${do_quick_check-0}
 237 then
 238   echo "This script installs all tools and libraries needed to build Chromium."
 239   echo ""
 240   echo "For most of the libraries, it can also install debugging symbols, which"
 241   echo "will allow you to debug code in the system libraries. Most developers"
 242   echo "won't need these symbols."
 243   echo -n "Do you want me to install them for you (y/N) "
 244   if yes_no 1; then
 245     do_inst_syms=1
 246   fi
 247 fi
 248 if test "$do_inst_syms" = "1"; then
 249   echo "Including debugging symbols."
 250 else
 251   echo "Skipping debugging symbols."
 252   dbg_list=
 253 fi
 254
 255 # When cross building for arm on 64-bit systems the host binaries
 256 # that are part of v8 need to be compiled with -m32 which means
 257 # that basic multilib support is needed.
 258 if file /sbin/init | grep -q 'ELF 64-bit'; then
 259   arm_list="$arm_list g++-multilib"
 260 fi
 261
 262 if test "$do_inst_arm" = "1" ; then
 263   echo "Including ARM cross toolchain."
 264 else
 265   echo "Skipping ARM cross toolchain."
 266   arm_list=
 267 fi
 268
 269 if test "$do_inst_nacl" = "1"; then
 270   echo "Including standalone NaCl dependencies."
 271 else
 272   echo "Skipping standalone NaCl dependencies."
 273   nacl_list=
 274 fi
 275
 276 packages="$(
 277   echo "${dev_list} ${lib_list} ${dbg_list} ${arm_list} ${nacl_list}" |
 278   tr " " "\n" | sort -u | tr "\n" " "
 279 )"
 280
 281 if [ 1 -eq "${do_quick_check-0}" ] ; then
 282   failed_check="$(dpkg-query -W -f '${PackageSpec}:${Status}\n' \
 283     ${packages} 2>&1 | grep -v "ok installed" || :)"
 284   if [ -n "${failed_check}" ]; then
 285     echo
 286     nomatch="$(echo "${failed_check}" | \
 287       sed -e "s/^No packages found matching \(.*\).$/\1/;t;d")"
 288     missing="$(echo "${failed_check}" | \
 289       sed -e "/^No packages found matching/d;s/^\(.*\):.*$/\1/")"
 290     if [ "$nomatch" ]; then
 291       # Distinguish between packages that actually aren't available to the
 292       # system (i.e. not in any repo) and packages that just aren't known to
 293       # dpkg (i.e. managed by apt).
 294       unknown=""
 295       for p in ${nomatch}; do
 296         if apt-cache show ${p} > /dev/null 2>&1; then
 297           missing="${p}\n${missing}"
 298         else
 299           unknown="${p}\n${unknown}"
 300         fi
 301       done
 302       if [ -n "${unknown}" ]; then
 303         echo "WARNING: The following packages are unknown to your system"
 304         echo "(maybe missing a repo or need to 'sudo apt-get update'):"
 305         echo -e "${unknown}" | sed -e "s/^/  /"
 306       fi
 307     fi
 308     if [ -n "${missing}" ]; then
 309       echo "WARNING: The following packages are not installed:"
 310       echo -e "${missing}" | sed -e "s/^/  /"
 311     fi
 312     exit 1
 313   fi
 314   exit 0
 315 fi
 316
 317 sudo apt-get update
 318
 319 # We initially run "apt-get" with the --reinstall option and parse its output.
 320 # This way, we can find all the packages that need to be newly installed
 321 # without accidentally promoting any packages from "auto" to "manual".
 322 # We then re-run "apt-get" with just the list of missing packages.
 323 echo "Finding missing packages..."
 324 # Intentionally leaving $packages unquoted so it's more readable.
 325 echo "Packages required: " $packages
 326 echo
 327 new_list_cmd="sudo apt-get install --reinstall $(echo $packages)"
 328 if new_list="$(yes n | LANGUAGE=en LANG=C $new_list_cmd)"; then
 329   # We probably never hit this following line.
 330   echo "No missing packages, and the packages are up-to-date."
 331 elif [ $? -eq 1 ]; then
 332   # We expect apt-get to have exit status of 1.
 333   # This indicates that we cancelled the install with "yes n|".
 334   new_list=$(echo "$new_list" |
 335     sed -e '1,/The following NEW packages will be installed:/d;s/^  //;t;d')
 336   new_list=$(echo "$new_list" | sed 's/ *$//')
 337   if [ -z "$new_list" ] ; then
 338     echo "No missing packages, and the packages are up-to-date."
 339   else
 340     echo "Installing missing packages: $new_list."
 341     sudo apt-get install ${do_quietly-} ${new_list}
 342   fi
 343   echo
 344 else
 345   # An apt-get exit status of 100 indicates that a real error has occurred.
 346
 347   # I am intentionally leaving out the '"'s around new_list_cmd,
 348   # as this makes it easier to cut and paste the output
 349   echo "The following command failed: " ${new_list_cmd}
 350   echo
 351   echo "It produces the following output:"
 352   yes n | $new_list_cmd || true
 353   echo
 354   echo "You will have to install the above packages yourself."
 355   echo
 356   exit 100
 357 fi
 358
 359 # Install the Chrome OS default fonts. This must go after running
 360 # apt-get, since install-chromeos-fonts depends on curl.
 361 if test "$do_inst_chromeos_fonts" != "0"; then
 362   echo
 363   echo "Installing Chrome OS fonts."
 364   dir=`echo $0 | sed -r -e 's/\/[^/]+$//'`
 365   if ! sudo $dir/linux/install-chromeos-fonts.py; then
 366     echo "ERROR: The installation of the Chrome OS default fonts failed."
 367     if [ `stat -f -c %T $dir` == "nfs" ]; then
 368       echo "The reason is that your repo is installed on a remote file system."
 369     else
 370       echo "This is expected if your repo is installed on a remote file system."
 371     fi
 372     echo "It is recommended to install your repo on a local file system."
 373     echo "You can skip the installation of the Chrome OS default founts with"
 374     echo "the command line option: --no-chromeos-fonts."
 375     exit 1
 376   fi
 377 else
 378   echo "Skipping installation of Chrome OS fonts."
 379 fi
 380
 381 # Install 32bit backwards compatibility support for 64bit systems
 382 if file /sbin/init | grep -q 'ELF 64-bit'; then
 383   if test "$do_inst_lib32" != "1"
 384   then
 385     echo "NOTE: If you were expecting the option to install 32bit libs,"
 386     echo "please run with the --lib32 flag."
 387     echo
 388     echo "Installation complete."
 389     exit 0
 390   else
 391     # This conditional statement has been added to deprecate and eventually
 392     # remove support for 32bit libraries on 64bit systems. But for the time
 393     # being, we still have to support a few legacy systems (e.g. bots), where
 394     # this feature is needed.
 395     # We only even give the user the option to install these libraries, if
 396     # they explicitly requested doing so by setting the --lib32 command line
 397     # flag.
 398     # And even then, we interactively ask them one more time whether they are
 399     # absolutely sure.
 400     # In order for that to work, we must reset the ${do_inst_lib32} variable.
 401     # There are other ways to achieve the same goal. But resetting the
 402     # variable is the best way to document the intended behavior -- and to
 403     # allow us to gradually deprecate and then remove the obsolete code.
 404     if test "${do_default-0}" -ne 1; then
 405       do_inst_lib32=
 406     fi
 407   fi
 408
 409   echo "WARNING"
 410   echo
 411   echo "We no longer recommend that you use this script to install"
 412   echo "32bit libraries on a 64bit system. Instead, consider using the"
 413   echo "install-chroot.sh script to help you set up a 32bit environment"
 414   echo "for building and testing 32bit versions of Chrome."
 415   echo
 416   echo "The code for installing 32bit libraries on a 64bit system is"
 417   echo "unmaintained and might not work with modern versions of Ubuntu"
 418   echo "or Debian."
 419   if test "$do_inst_lib32" != "" ; then
 420     echo
 421     echo -n "Are you sure you want to proceed (y/N) "
 422     if yes_no 1; then
 423       do_inst_lib32=1
 424     fi
 425   fi
 426   if test "$do_inst_lib32" != "1"
 427   then
 428     exit 0
 429   fi
 430
 431   # Standard 32bit compatibility libraries
 432   echo "First, installing the limited existing 32-bit support..."
 433   cmp_list="ia32-libs lib32asound2-dev lib32stdc++6 lib32z1
 434             lib32z1-dev libc6-dev-i386 libc6-i386 g++-multilib"
 435   if [ -n "`apt-cache search lib32readline-gplv2-dev 2>/dev/null`" ]; then
 436     cmp_list="${cmp_list} lib32readline-gplv2-dev"
 437   else
 438     cmp_list="${cmp_list} lib32readline5-dev"
 439   fi
 440   sudo apt-get install ${do_quietly-} $cmp_list
 441
 442   tmp=/tmp/install-32bit.$$
 443   trap 'rm -rf "${tmp}"' EXIT INT TERM QUIT
 444   mkdir -p "${tmp}/apt/lists/partial" "${tmp}/cache" "${tmp}/partial"
 445   touch "${tmp}/status"
 446
 447   [ -r /etc/apt/apt.conf ] && cp /etc/apt/apt.conf "${tmp}/apt/"
 448   cat >>"${tmp}/apt/apt.conf" <<EOF
 449         Apt::Architecture "i386";
 450         Dir::Cache "${tmp}/cache";
 451         Dir::Cache::Archives "${tmp}/";
 452         Dir::State::Lists "${tmp}/apt/lists/";
 453         Dir::State::status "${tmp}/status";
 454 EOF
 455
 456   # Download 32bit packages
 457   echo "Computing list of available 32bit packages..."
 458   sudo apt-get -c="${tmp}/apt/apt.conf" update
 459
 460   echo "Downloading available 32bit packages..."
 461   sudo apt-get -c="${tmp}/apt/apt.conf" \
 462           --yes --download-only --force-yes --reinstall install \
 463           ${lib_list} ${dbg_list}
 464
 465   # Open packages, remove everything that is not a library, move the
 466   # library to a lib32 directory and package everything as a *.deb file.
 467   echo "Repackaging and installing 32bit packages for use on 64bit systems..."
 468   for i in ${lib_list} ${dbg_list}; do
 469     orig="$(echo "${tmp}/${i}"_*_i386.deb)"
 470     compat="$(echo "${orig}" |
 471               sed -e 's,\(_[^_/]*_\)i386\(.deb\),-ia32\1amd64\2,')"
 472     rm -rf "${tmp}/staging"
 473     msg="$(fakeroot -u sh -exc '
 474       # Unpack 32bit Debian archive
 475       umask 022
 476       mkdir -p "'"${tmp}"'/staging/dpkg/DEBIAN"
 477       cd "'"${tmp}"'/staging"
 478       ar x "'${orig}'"
 479       tar Cfx dpkg data.tar*
 480       tar zCfx dpkg/DEBIAN control.tar.gz
 481
 482       # Create a posix extended regular expression fragment that will
 483       # recognize the includes which have changed. Should be rare,
 484       # will almost always be empty.
 485       includes=`sed -n -e "s/^[0-9a-z]*  //g" \
 486                        -e "\,usr/include/,p" dpkg/DEBIAN/md5sums |
 487                   xargs -n 1 -I FILE /bin/sh -c \
 488                     "cmp -s dpkg/FILE /FILE || echo FILE" |
 489                   tr "\n" "|" |
 490                   sed -e "s,|$,,"`
 491
 492       # If empty, set it to not match anything.
 493       test -z "$includes" && includes="^//"
 494
 495       # Turn the conflicts into an extended RE for removal from the
 496       # Provides line.
 497       conflicts=`sed -n -e "/Conflicts/s/Conflicts: *//;T;s/, */|/g;p" \
 498                    dpkg/DEBIAN/control`
 499
 500       # Rename package, change architecture, remove conflicts and dependencies
 501       sed -r -i                              \
 502           -e "/Package/s/$/-ia32/"           \
 503           -e "/Architecture/s/:.*$/: amd64/" \
 504           -e "/Depends/s/:.*/: ia32-libs/"   \
 505           -e "/Provides/s/($conflicts)(, *)?//g;T1;s/, *$//;:1"   \
 506           -e "/Recommends/d"                 \
 507           -e "/Conflicts/d"                  \
 508         dpkg/DEBIAN/control
 509
 510       # Only keep files that live in "lib" directories or the includes
 511       # that have changed.
 512       sed -r -i                                                               \
 513           -e "/\/lib64\//d" -e "/\/.?bin\//d"                                 \
 514           -e "\,$includes,s,[ /]include/,&32/,g;s,include/32/,include32/,g"   \
 515           -e "s, lib/, lib32/,g"                                              \
 516           -e "s,/lib/,/lib32/,g"                                              \
 517           -e "t;d"                                                            \
 518           -e "\,^/usr/lib32/debug\(.*/lib32\),s,^/usr/lib32/debug,/usr/lib/debug," \
 519         dpkg/DEBIAN/md5sums
 520
 521       # Re-run ldconfig after installation/removal
 522       { echo "#!/bin/sh"; echo "[ \"x\$1\" = xconfigure ]&&ldconfig||:"; } \
 523         >dpkg/DEBIAN/postinst
 524       { echo "#!/bin/sh"; echo "[ \"x\$1\" = xremove ]&&ldconfig||:"; } \
 525         >dpkg/DEBIAN/postrm
 526       chmod 755 dpkg/DEBIAN/postinst dpkg/DEBIAN/postrm
 527
 528       # Remove any other control files
 529       find dpkg/DEBIAN -mindepth 1 "(" -name control -o -name md5sums -o \
 530                        -name postinst -o -name postrm ")" -o -print |
 531         xargs -r rm -rf
 532
 533       # Remove any files/dirs that live outside of "lib" directories,
 534       # or are not in our list of changed includes.
 535       find dpkg -mindepth 1 -regextype posix-extended \
 536           "(" -name DEBIAN -o -name lib -o -regex "dpkg/($includes)" ")" \
 537           -prune -o -print | tac |
 538         xargs -r -n 1 sh -c "rm \$0 2>/dev/null || rmdir \$0 2>/dev/null || : "
 539       find dpkg -name lib64 -o -name bin -o -name "?bin" |
 540         tac | xargs -r rm -rf
 541
 542       # Remove any symbolic links that were broken by the above steps.
 543       find -L dpkg -type l -print | tac | xargs -r rm -rf
 544
 545       # Rename lib to lib32, but keep debug symbols in /usr/lib/debug/usr/lib32
 546       # That is where gdb looks for them.
 547       find dpkg -type d -o -path "*/lib/*" -print |
 548         xargs -r -n 1 sh -c "
 549           i=\$(echo \"\${0}\" |
 550                sed -e s,/lib/,/lib32/,g \
 551                -e s,/usr/lib32/debug\\\\\(.*/lib32\\\\\),/usr/lib/debug\\\\1,);
 552           mkdir -p \"\${i%/*}\";
 553           mv \"\${0}\" \"\${i}\""
 554
 555       # Rename include to include32.
 556       [ -d "dpkg/usr/include" ] && mv "dpkg/usr/include" "dpkg/usr/include32"
 557
 558       # Prune any empty directories
 559       find dpkg -type d | tac | xargs -r -n 1 rmdir 2>/dev/null || :
 560
 561       # Create our own Debian package
 562       cd ..
 563       dpkg --build staging/dpkg .' 2>&1)"
 564     compat="$(eval echo $(echo "${compat}" |
 565                           sed -e 's,_[^_/]*_amd64.deb,_*_amd64.deb,'))"
 566     [ -r "${compat}" ] || {
 567       echo "${msg}" >&2
 568       echo "Failed to build new Debian archive!" >&2
 569       exit 1
 570     }
 571
 572     msg="$(sudo dpkg -i "${compat}" 2>&1)" && {
 573         echo "Installed ${compat##*/}"
 574       } || {
 575         # echo "${msg}" >&2
 576         echo "Skipped ${compat##*/}"
 577       }
 578   done
 579
 580   # Add symbolic links for developing 32bit code
 581   echo "Adding missing symbolic links, enabling 32bit code development..."
 582   for i in $(find /lib32 /usr/lib32 -maxdepth 1 -name \*.so.\* |
 583              sed -e 's/[.]so[.][0-9].*/.so/' |
 584              sort -u); do
 585     [ "x${i##*/}" = "xld-linux.so" ] && continue
 586     [ -r "$i" ] && continue
 587     j="$(ls "$i."* | sed -e 's/.*[.]so[.]\([^.]*\)$/\1/;t;d' |
 588          sort -n | tail -n 1)"
 589     [ -r "$i.$j" ] || continue
 590     sudo ln -s "${i##*/}.$j" "$i"
 591   done
 592 fi