diff --git a/SConstruct b/SConstruct
new file mode 100644
index 0000000..d4c97ed
--- /dev/null
+++ b/SConstruct
@@ -0,0 +1,42 @@
+# Copyright (c) 2009 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.
+
+env = Environment()
+env['CCFLAGS'] = '-g -fno-exceptions -Wall -Werror -D_FILE_OFFSET_BITS=64 ' + \
+                 '-I/usr/include/libxml2'
+env['LIBS'] = Split('curl glog gtest ssl xml2 z')
+env['CPPPATH'] = ['..']
+env.ParseConfig('pkg-config --cflags --libs glib-2.0')
+
+if ARGUMENTS.get('debug', 0):
+  env['CCFLAGS'] += ' -fprofile-arcs -ftest-coverage'
+  env['LIBS'] += ['gcov']
+
+sources = Split("""action_processor.cc
+                   decompressing_file_writer.cc
+                   download_action.cc
+                   libcurl_http_fetcher.cc
+                   omaha_hash_calculator.cc
+                   update_check_action.cc""")
+main = ['main.cc']
+
+unittest_sources = Split("""action_unittest.cc
+                            action_pipe_unittest.cc
+                            action_processor_unittest.cc
+                            decompressing_file_writer_unittest.cc
+                            download_action_unittest.cc
+                            file_writer_unittest.cc
+                            http_fetcher_unittest.cc
+                            mock_http_fetcher.cc
+                            omaha_hash_calculator_unittest.cc
+                            test_utils.cc
+                            update_check_action_unittest.cc""")
+unittest_main = ['testrunner.cc']
+
+env.Program('update_engine', sources + main)
+unittest_cmd = env.Program('update_engine_unittests',
+            sources + unittest_sources + unittest_main)
+
+Clean(unittest_cmd, Glob('*.gcda') + Glob('*.gcno') + Glob('*.gcov') +
+                    Split('html app.info'))