Lots of tweaks to the install-chroot.sh and install-build-deps.sh

build/install-build-deps.sh

 #!/bin/bash -e
 
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Script to install everything needed to build chromium (well, ideally, anyway)
 # See http://code.google.com/p/chromium/wiki/LinuxBuildInstructions
 # and http://code.google.com/p/chromium/wiki/LinuxBuild64Bit
 
@@ skipping 12 matching lines @@
   --syms)                   do_inst_syms=1;;
   --no-syms)                do_inst_syms=0;;
   --lib32)                  do_inst_lib32=1;;
   --no-lib32)               do_inst_lib32=0;;
   *) usage;;
   esac
   shift
 done
 
 if ! egrep -q \
-    'Ubuntu (10\.04|10\.10|11\.04|11\.10|lucid|maverick|natty|oneiric)' \
+    'Ubuntu (10\.04|10\.10|11\.04|11\.10|12\.04|lucid|maverick|natty|oneiric|precise)' \
     /etc/issue; then
-  echo "Only Ubuntu 10.04 (lucid) through 11.10 (oneiric) are currently" \
+  echo "Only Ubuntu 10.04 (lucid) through 12.04 (precise) are currently" \
       "supported" >&2
   exit 1
 fi
 
 if ! uname -m | egrep -q "i686|x86_64"; then
   echo "Only x86 architectures are currently supported" >&2
   exit
 fi
 
 if [ "x$(id -u)" != x0 ]; then
   echo "Running as non-root user."
   echo "You might have to enter your password one or more times for 'sudo'."
   echo
 fi
 
 # Packages needed for chromeos only
 chromeos_dev_list="libpulse-dev"
 
 # Packages need for development
 dev_list="apache2.2-bin bison curl elfutils fakeroot flex g++ gperf
           language-pack-fr libapache2-mod-php5 libasound2-dev libbz2-dev
           libcairo2-dev libcups2-dev libcurl4-gnutls-dev libdbus-glib-1-dev
           libelf-dev libgconf2-dev libgl1-mesa-dev libglib2.0-dev
           libglu1-mesa-dev libgnome-keyring-dev libgtk2.0-dev libjpeg62-dev
           libkrb5-dev libnspr4-dev libnss3-dev libpam0g-dev libsctp-dev
           libsqlite3-dev libssl-dev libudev-dev libwww-perl libxslt1-dev
-          libxss-dev libxt-dev libxtst-dev mesa-common-dev msttcorefonts patch
+          libxss-dev libxt-dev libxtst-dev mesa-common-dev patch
           perl php5-cgi pkg-config python python-cherrypy3 python-dev
           python-psutil rpm ruby subversion ttf-dejavu-core ttf-indic-fonts
           ttf-kochi-gothic ttf-kochi-mincho ttf-thai-tlwg wdiff git-core
           $chromeos_dev_list"
 
 # Run-time libraries required by chromeos only
 chromeos_lib_list="libpulse0 libbz2-1.0 libcurl4-gnutls-dev"
 
 # Full list of required run-time libraries
 lib_list="libatk1.0-0 libc6 libasound2 libcairo2 libcups2 libdbus-glib-1-2
@@ skipping 10 matching lines @@
           libpango1.0-0-dbg libpcre3-dbg libpixman-1-0-dbg
           libsqlite3-0-dbg
           libx11-6-dbg libxau6-dbg libxcb1-dbg libxcomposite1-dbg
           libxcursor1-dbg libxdamage1-dbg libxdmcp6-dbg libxext6-dbg
           libxfixes3-dbg libxi6-dbg libxinerama1-dbg libxrandr2-dbg
           libxrender1-dbg libxtst6-dbg zlib1g-dbg"
 
 # Plugin lists needed for tests.
 plugin_list="flashplugin-installer"
 
-# Some NSS packages were renamed in Natty.
-if egrep -q 'Ubuntu (10\.04|10\.10)' /etc/issue; then
+# Some package names have changed over time
+if dpkg --print-avail msttcorefonts >/dev/null 2>&1; then
+  dev_list="${dev_list} msttcorefonts"
+else
+  dev_list="${dev_list} ttf-mscorefonts-installer"
+fi
+if dpkg --print-avail libnspr4 >/dev/null 2>&1; then
+  dbg_list="${dbg_list} libnspr4-dbg libnss3-dbg"
+  lib_list="${lib_list} libnspr4 libnss3"
+else
   dbg_list="${dbg_list} libnspr4-0d-dbg libnss3-1d-dbg"
   lib_list="${lib_list} libnspr4-0d libnss3-1d"
-else
-  dbg_list="${dbg_list} libnspr4-dbg libnss3-dbg"
-  lib_list="${lib_list} libnspr4 libnss3"
+fi
+
+# Some packages are only needed, if the distribution actually supports
+# installing them.
+if dpkg --print-avail appmenu-gtk >/dev/null 2>&1; then
+  lib_list="$lib_list appmenu-gtk"
 fi
 
 # Waits for the user to press 'Y' or 'N'. Either uppercase of lowercase is
 # accepted. Returns 0 for 'Y' and 1 for 'N'. If an optional parameter has
 # been provided to yes_no(), the function also accepts RETURN as a user input.
 # The parameter specifies the exit code that should be returned in that case.
 # The function will echo the user's selection followed by a newline character.
 # Users can abort the function by pressing CTRL-C. This will call "exit 1".
 yes_no() {
   local c
@@ skipping 44 matching lines @@
 fi
 
 sudo apt-get update
 
 # We initially run "apt-get" with the --reinstall option and parse its output.
 # This way, we can find all the packages that need to be newly installed
 # without accidentally promoting any packages from "auto" to "manual".
 # We then re-run "apt-get" with just the list of missing packages.
 echo "Finding missing packages..."
 packages="${dev_list} ${lib_list} ${dbg_list} ${plugin_list}"
-# Intentially leaving $packages unquoted so it's more readable.
+# Intentionally leaving $packages unquoted so it's more readable.
 echo "Packages required: " $packages
 echo
 new_list_cmd="sudo apt-get install --reinstall $(echo $packages)"
 if new_list="$(yes n | LANG=C $new_list_cmd)"; then
   # We probably never hit this following line.
   echo "No missing packages, and the packages are up-to-date."
 elif [ $? -eq 1 ]; then
   # We expect apt-get to have exit status of 1.
-  # This indicates that we canceled the install with "yes n|".
+  # This indicates that we cancelled the install with "yes n|".
   new_list=$(echo "$new_list" |
     sed -e '1,/The following NEW packages will be installed:/d;s/^  //;t;d')
   new_list=$(echo "$new_list" | sed 's/ *$//')
   if [ -z "$new_list" ] ; then
     echo "No missing packages, and the packages are up-to-date."
   else
     echo "Installing missing packages: $new_list."
     sudo apt-get install ${new_list}
   fi
   echo
@@ skipping 194 matching lines @@
              sed -e 's/[.]so[.][0-9].*/.so/' |
              sort -u); do
     [ "x${i##*/}" = "xld-linux.so" ] && continue
     [ -r "$i" ] && continue
     j="$(ls "$i."* | sed -e 's/.*[.]so[.]\([^.]*\)$/\1/;t;d' |
          sort -n | tail -n 1)"
     [ -r "$i.$j" ] || continue
     sudo ln -s "${i##*/}.$j" "$i"
   done
 fi