diff --git a/chroot_version_hooks.d/7_host_gcc_upgrade b/chroot_version_hooks.d/7_host_gcc_upgrade
new file mode 100644
index 0000000000..6e81ac9ac1
--- /dev/null
+++ b/chroot_version_hooks.d/7_host_gcc_upgrade
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This is a generic script for upgrading the host toolchain. It should:
+# - be able to run repeatedly, in case someone has ancient chroot with
+#   several missed gcc upgrades
+# - be easily tweakable for future upgrades of the same kind, if needed
+
+CHOST="$(portageq envvar CHOST)"
+
+# This is the lowest we want to go in this particular case.
+MINIMUM_GCC="4.4.6"
+
+GCC_VERSIONS="$(gcc-config -l | grep "${CHOST}" | \
+                cut -f3 -d' ')"
+GCC_LATEST="$(gcc-config -l | grep "${CHOST}" | tail -n1 | \
+              cut -f3 -d' ')"
+
+if ! [ "$(portageq match / ">=sys-devel/gcc-${MINIMUM_GCC}")" ];
+then
+  info "You don't have the latest gcc installed, trying to build it"
+  if ! sudo emerge -u --getbinpkg sys-devel/gcc; then
+    error "Emerging gcc failed. Please recreate your chroot."
+    exit 1
+  fi
+  if ! [ "$(portageq match / ">=sys-devel/gcc-${MINIMUM_GCC}")" ];
+  then
+    error "You still don't have the latest gcc. Something is very"
+    error "wrong with your tree. Recreating your chroot will likely fix it."
+    exit 1
+  fi
+fi
+
+info "Updating the host toolchain. crosbug.com/19613"
+info "Currently installed host gcc versions: $(echo -n ${GCC_VERSIONS})"
+
+if ! sudo gcc-config "${GCC_LATEST}"; then
+  error "gcc-config failed. This is really bad. Recreate your chroot."
+  exit 1
+fi
+
+info "Cleaning up the old toolchain"
+sudo emerge --unmerge "<sys-devel/gcc-${MINIMUM_GCC}"
+
+exit 0