MinGW: Add Cygwin-free Makefile generation script

Review URL: https://codereview.chromium.org/14046009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/mingw-generate-makefiles.sh

+#!/bin/sh
+# Copyright 2013 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+#     * Neither the name of Google Inc. nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Monkey-patch GYP.
+cat > build/gyp/gyp.mingw << EOF
+#!/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.
+
+import sys
+
+# TODO(mark): sys.path manipulation is some temporary testing stuff.
+try:
+  import gyp
+except ImportError, e:
+  import os.path
+  sys.path.append(os.path.join(os.path.dirname(sys.argv[0]), 'pylib'))
+  import gyp
+  
+def MonkeyBuildFileTargets(target_list, build_file):
+  """From a target_list, returns the subset from the specified build_file.
+  """
+  build_file = build_file.replace('/', '\\\\')
+  return [p for p in target_list if gyp.common.BuildFile(p) == build_file]
+gyp.common.BuildFileTargets = MonkeyBuildFileTargets
+
+import gyp.generator.make
+import os
+def Monkey_ITIP(self):
+  """Returns the location of the final output for an installable target."""
+  sep = os.path.sep
+  # Xcode puts shared_library results into PRODUCT_DIR, and some gyp files
+  # rely on this. Emulate this behavior for mac.
+  if (self.type == 'shared_library' and
+      (self.flavor != 'mac' or self.toolset != 'target')):
+    # Install all shared libs into a common directory (per toolset) for
+    # convenient access with LD_LIBRARY_PATH.
+    return '\$(builddir)%slib.%s%s%s' % (sep, self.toolset, sep, self.alias)
+  return '\$(builddir)' + sep + self.alias
+gyp.generator.make.MakefileWriter._InstallableTargetInstallPath = Monkey_ITIP
+
+if __name__ == '__main__':
+  sys.exit(gyp.main(sys.argv[1:]))
+EOF
+
+# Delete old generated Makefiles.
+find out -name '*.mk' -or -name 'Makefile*' -exec rm {} \;
+
+# Generate fresh Makefiles.
+mv build/gyp/gyp build/gyp/gyp.original
+mv build/gyp/gyp.mingw build/gyp/gyp
+make out/Makefile.ia32
+mv build/gyp/gyp build/gyp/gyp.mingw
+mv build/gyp/gyp.original build/gyp/gyp
+
+# Patch generated Makefiles: replace most backslashes with forward slashes,
+# fix library names in linker flags.
+FILES=$(find out -name '*.mk' -or -name 'Makefile*')
+for F in $FILES ; do
+  echo "Patching $F..."
+  cp $F $F.orig
+  cat $F.orig \
+    | sed -e 's|\([)a-zA-Z0-9]\)\\\([a-zA-Z]\)|\1/\2|g' \
+          -e 's|\([)a-zA-Z0-9]\)\\\\\([a-zA-Z]\)|\1/\2|g' \
+          -e 's|'%s/n'|'%s\\\\n'|g' \
+          -e 's|-lwinmm\.lib|-lwinmm|g' \
+          -e 's|-lws2_32\.lib|-lws2_32|g' \
+    > $F
+  rm $F.orig
+done