Initial attempt to add support for using gyp to build V8 itself...

src/d8.gyp

Index: src/d8.gyp
===================================================================
--- src/d8.gyp	(revision 0)
+++ src/d8.gyp	(revision 0)
@@ -0,0 +1,85 @@
+# Copyright 2010 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.
+
+{
+  'targets': [
+    {
+      'target_name': 'd8',
+      'type': 'executable',
+      'dependencies': [
+        'd8_js2c#host',
+        '../tools/gyp/v8.gyp:v8',
+      ],
+      'include_dirs+': [
+        '../src',
+      ],
+      'defines': [
+        'ENABLE_DEBUGGER_SUPPORT',
+      ],
+      'sources': [
+        'd8.cc',
+        'd8-debug.cc',
+        '<(SHARED_INTERMEDIATE_DIR)/d8-js.cc',
+      ],
+      'conditions': [
+        [ 'OS=="linux" or OS=="mac" or OS=="freebsd" or OS=="openbsd" or OS=="solaris"', {
+          'sources': [ 'd8-posix.cc', ]
+        }],
+      ],
+    },
+    {
+      'target_name': 'd8_js2c',
+      'type': 'none',
+      'toolsets': ['host'],
+      'variables': {
+        'js_files': [
+          'd8.js',
+        ],
+      },
+      'actions': [
+        {
+          'action_name': 'd8_js2c',
+          'inputs': [
+            '../tools/js2c.py',
+            '<@(js_files)',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/d8-js.cc',
+            '<(SHARED_INTERMEDIATE_DIR)/d8-js-empty.cc',
+          ],
+          'action': [
+            'python',
+            '../tools/js2c.py',
+            '<@(_outputs)',
+            'D8',
+            '<@(js_files)'
+          ],
+        },
+      ],
+    }
+  ],
+}