ninja win: Add msvs emulation for FloatingPointModel

test/win/gyptest-cl-floating-point-model.py

+#!/usr/bin/env python
+
+# Copyright (c) 2014 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.
+
+"""
+Make sure floating point model settings are extracted properly.
+"""
+
+import TestGyp
+
+import sys
+
+if sys.platform == 'win32':
+  test = TestGyp.TestGyp(formats=['ninja'])
+
+  CHDIR = 'compiler-flags'
+  test.run_gyp('floating-point-model.gyp', chdir=CHDIR)
+
+  # It's hard to map flags to output contents in a non-fragile way, so just

[scottmg, 2014/11/13 21:35:55]

I believe cl defines _M_FP_FAST, _M_FP_PRECISE, and _M_FP_STRICT depending on
/fp mode. It's not a ton better, but at least it could run on msvs too that way.

+  # verify the correct ninja command line contents.
+
+  ninja_file = test.built_file_path(
+      'obj/test-floating-point-model-default.ninja',
+      chdir=CHDIR)
+  test.must_not_contain(ninja_file, '/fp:precise')
+  test.must_not_contain(ninja_file, '/fp:strict')
+  test.must_not_contain(ninja_file, '/fp:fast')
+
+  ninja_file = test.built_file_path(
+      'obj/test-floating-point-model-precise.ninja',
+      chdir=CHDIR)
+  test.must_contain(ninja_file, '/fp:precise')
+
+  ninja_file = test.built_file_path(
+      'obj/test-floating-point-model-strict.ninja',
+      chdir=CHDIR)
+  test.must_contain(ninja_file, '/fp:strict')
+
+  ninja_file = test.built_file_path(
+      'obj/test-floating-point-model-fast.ninja',
+      chdir=CHDIR)
+  test.must_contain(ninja_file, '/fp:fast')
+
+  test.pass_test()