Set target_arch to ia32 instead of x86_64 on 32bit userland 64bit kernel systems.

build/detect_nacl_host_arch.py

Index: build/detect_nacl_host_arch.py
===================================================================
--- build/detect_nacl_host_arch.py	(revision 0)
+++ build/detect_nacl_host_arch.py	(working copy)
@@ -0,0 +1,40 @@
+#!/usr/bin/env python
+# Copyright 2014 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.
+
+"""Outputs host CPU architecture in format recognized by gyp."""
+
+import platform
+import re
+import sys
+
+
+def main():
+  print DoMain([])
+  return 0
+
+def DoMain(_):
+  """Hook to be called from gyp without starting a separate python
+  interpreter."""
+  host_arch = platform.machine()
+
+  # Convert machine type to format recognized by gyp.
+  if re.match(r'i.86', host_arch) or host_arch == 'i86pc':
+    host_arch = 'ia32'
+  elif host_arch in ['x86_64', 'amd64']:
+    host_arch = 'x64'
+  elif host_arch.startswith('arm'):
+    host_arch = 'arm'
+
+  # platform.machine is based on running kernel. It's possible to use 64-bit
+  # kernel with 32-bit userland, e.g. to give linker slightly more memory.
+  # Distinguish between different userland bitness by querying
+  # the python binary.
+  if host_arch == 'x64' and platform.architecture()[0] == '32bit':
+    host_arch = 'ia32'
+
+  return host_arch
+
+if __name__ == '__main__':
+  sys.exit(main())
Property changes on: build/detect_nacl_host_arch.py
___________________________________________________________________
Added: svn:executable
## -0,0 +1 ##
+*
\ No newline at end of property