Avoid MSB8012 in GYP

test/target/gyptest-target.py

+#!/usr/bin/env python
+
+# Copyright (c) 2009 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+Verifies simplest-possible build of a "Hello, world!" program
+using non-default extension. In particular, verifies how
+target_extension is used to avoid MSB8012 for msvs.
+"""
+
+import sys
+import TestGyp
+
+if sys.platform in ('win32', 'cygwin'):
+  test = TestGyp.TestGyp()
+
+  test.run_gyp('target.gyp')
+  test.build('target.gyp')
+
+  # executables
+  test.built_file_must_exist('hello1.stuff', test.EXECUTABLE, bare=True)
+  test.built_file_must_exist('hello2.exe', test.EXECUTABLE, bare=True)
+  test.built_file_must_not_exist('hello2.stuff', test.EXECUTABLE, bare=True)
+
+  # check msvs log for errors
+  if test.format == "msvs":
+    log_file = "obj\\hello1\\hello1.log"
+    test.built_file_must_exist(log_file)
+    test.built_file_must_not_contain(log_file, "MSB8012")
+
+    log_file = "obj\\hello2\\hello2.log"
+    test.built_file_must_exist(log_file)
+    test.built_file_must_not_contain(log_file, "MSB8012")
+
+  test.pass_test()