Add script to check out chromium source tree and invoke install-build-deps.sh...

build/install-build-deps.sh

 #!/bin/bash -e
 
 # 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
 
+install_gold() {
+  # Gold is optional; it's a faster replacement for ld,
+  # and makes life on 2GB machines much more pleasant.
+
+  BINUTILS=binutils-2.19.1
+  BINUTILS_URL=http://ftp.gnu.org/gnu/binutils/$BINUTILS.tar.bz2
+  BINUTILS_SHA1=88c91e36cde93433e4c4c2b2e3417777aad84526
+
+  test -f $BINUTILS.tar.bz2 || wget $BINUTILS_URL
+  if `sha1sum $BINUTILS.tar.bz2` != $BINUTILS_SHA1
+  then
+    echo Bad sha1sum for $BINUTILS.tar.bz2
+    exit 1
+  fi
+  cat > binutils-fix.patch <<__EOF__
+--- binutils-2.19.1/gold/reduced_debug_output.h.orig    2009-05-10 14:44:52.000000000 -0700
++++ binutils-2.19.1/gold/reduced_debug_output.h 2009-05-10 14:46:51.000000000 -0700
+@@ -64,7 +64,7 @@
+   void
+   failed(std::string reason)
+   {
+-    gold_warning(reason.c_str());
++    gold_warning("%s", reason.c_str());
+     failed_ = true;
+   }
+ 
+@@ -110,7 +110,7 @@
+   void
+   failed(std::string reason)
+   {
+-    gold_warning(reason.c_str());
++    gold_warning("%s", reason.c_str());
+     this->failed_ = true;
+   }
+ 
+__EOF__
+
+  tar -xjvf $BINUTILS.tar.bz2
+  cd $BINUTILS
+  patch -p1 < ../binutils-fix.patch
+  ./configure --prefix=/usr/local/gold --enable-gold
+  make -j3
+  sudo make install
+
+  # Still need to figure out graceful way of pointing gyp to use 
+  # /usr/local/gold/bin/ld without requiring him to set environment
+  # variables.  That will go into bootstrap-linux.sh when it's ready.
+  echo "Installing gold as /usr/bin/ld."
+  echo "To uninstall, do 'cd /usr/bin; sudo rm ld; sudo mv ld.orig ld'"
+  test -f /usr/bin/ld && sudo mv /usr/bin/ld /usr/bin/ld.orig
+  sudo ln -s /usr/local/gold/bin/ld /usr/bin/ld
+}
+
 if ! egrep -q "Ubuntu 8.04|Ubuntu 8.10|Ubuntu 9.04" /etc/issue; then
   echo "Only Ubuntu 8.04, 8.10, and 9.04 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
 
@@ skipping 58 matching lines @@
              exit 1
              ;;
       *)     # The user pressed an unrecognized key. As we are not echoing
              # any incorrect user input, alert the user by ringing the bell.
              (tput bel) 2>/dev/null
              ;;
     esac
   done
 }
 
-echo "This script installs all required libraries for building Chromium."
+echo "This script installs all tools and libraries needed to build Chromium."
+echo ""
 echo "For most of the libraries, it can also install debugging symbols, which"
 echo "will allow you to debug code in the system libraries. Most developers"
 echo "won't need these symbols."
 echo -n "Do you want me to install them for you (y/N) "
 if yes_no 1; then
   echo "Installing debugging symbols."
 else
   echo "Skipping installation of debugging symbols."
   dbg_list=
 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..."
 new_list="$(yes n |
             LANG=C sudo apt-get install --reinstall \
                          ${dev_list} ${lib_list} ${dbg_list} \
                          $([ "$(uname -m)" = x86_64 ] && echo ${cmp_list}) \
                          2>/dev/null |
             sed -e '1,/The following NEW packages will be installed:/d;s/^  //;t;d')"
 
 echo "Installing missing packages..."
 sudo apt-get install ${new_list}
 
+# Some operating systems already ship gold
+# (on Debian, you can probably do "apt-get install binutils-gold" to get it)
+# Ubuntu toyed with that, but it doesn't seem to be in any version I've tried.
+# So just install from source if it isn't the default linker.
+
+case `ld --version` in
+*gold*) ;;
+* )
+  # FIXME: avoid installing as /usr/bin/ld
+  echo -n "Install gold from binutils-2.19.1 as ld?  It's 5x faster (y/N) "
+  if yes_no 1; then
+    echo "Building binutils."
+    install_gold || exit 99
+  else
+    echo "Not installing gold."
+  fi
+esac
+
 # Install 32bit backwards compatibility support for 64bit systems
 if [ "$(uname -m)" = x86_64 ]; then
   echo "Installing 32bit libraries that are not already provided by the system"
   echo
   echo "While we only need to install a relatively small number of library"
   echo "files, we temporarily need to download a lot of large *.deb packages"
   echo "that contain these files. We will create new *.deb packages that"
   echo "include just the 32bit libraries. These files will then be found on"
   echo "your system in places like /lib32, /usr/lib32, /usr/lib/debug/lib32,"
   echo "/usr/lib/debug/usr/lib32. If you ever need to uninstall these files,"
@@ skipping 115 matching lines @@
              sed -e 's/[.]so[.][0-9].*/.so/' |
              sort -u); do
     [ "x${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