envsetup: Remove host_arch bitness check, let android_gyp print that it's going away.

build/android/envsetup.sh

 #!/bin/bash
 # 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.
 
 # Sets up environment for building Chromium on Android.
 
 # Make sure we're being sourced (possibly by another script). Check for bash
 # since zsh sets $0 when sourcing.
 if [[ -n "$BASH_VERSION" && "${BASH_SOURCE:-$0}" == "$0" ]]; then
   echo "ERROR: envsetup must be sourced."
   exit 1
 fi
 
 SCRIPT_DIR="$(dirname "${BASH_SOURCE:-$0}")"
 
-# Get host architecture, and abort if it is 32-bit.
-host_arch=$(uname -m)
-case "${host_arch}" in
-  x86_64)  # pass
-    ;;
-  i?86)
-    echo "ERROR: Android build requires a 64-bit host build machine."
-    return 1
-    ;;
-  *)
-    echo "ERROR: Unsupported host architecture (${host_arch})."
-    echo "Try running this script on a Linux/x86_64 machine instead."
-    return 1
-esac
-
 CURRENT_DIR="$(readlink -f "${SCRIPT_DIR}/../../")"
 if [[ -z "${CHROME_SRC}" ]]; then
   # If $CHROME_SRC was not set, assume current directory is CHROME_SRC.
   export CHROME_SRC="${CURRENT_DIR}"
 fi
 
 if [[ "${CURRENT_DIR/"${CHROME_SRC}"/}" == "${CURRENT_DIR}" ]]; then
   # If current directory is not in $CHROME_SRC, it might be set for other
   # source tree. If $CHROME_SRC was set correctly and we are in the correct
   # directory, "${CURRENT_DIR/"${CHROME_SRC}"/}" will be "".
@@ skipping 23 matching lines @@
 
 if [[ -n "$CHROME_ANDROID_OFFICIAL_BUILD" ]]; then
   # These defines are used by various chrome build scripts to tag the binary's
   # version string as 'official' in linux builds (e.g. in
   # chrome/trunk/src/chrome/tools/build/version.py).
   export OFFICIAL_BUILD=1
   export CHROMIUM_BUILD="_google_chrome"
   export CHROME_BUILD_TYPE="_official"
 fi
 
-# Performs a gyp_chromium run to convert gyp->Makefile for android code.
 android_gyp() {
-  # This is just a simple wrapper of gyp_chromium, please don't add anything
-  # in this function.
+  echo "Please call build/gyp_chromium instead. android_gyp is going away."

[Yaron, 2014/04/02 22:04:19]

In another deprecation, a table is flipped:
http://knowyourmeme.com/memes/flipping-tables-%E2%95%AF%E2%96%A1%EF%BC%89%E2%...

   "${CHROME_SRC}/build/gyp_chromium" --depth="${CHROME_SRC}" --check "$@"
 }