Explicitly include defaults.cc in the shared_library gyp target.

Explicitly include defaults.cc in the shared_library gyp target, otherwise
the whole compilation unit is stripped by the Windows linker, since none of it's
symbols are referenced by any other compilation unit in V8.

BUG=None
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/25994002

Patch from Ross McIlroy <rmcilroy@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17107 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/defaults.cc

@@ -25,6 +25,9 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// The GYP based build ends up defining USING_V8_SHARED when compiling this
+// file.
+#undef USING_V8_SHARED
 #include "../include/v8-defaults.h"
 
 #include "platform.h"

tools/gyp/v8.gyp

@@ -61,6 +61,10 @@
             # Note: on non-Windows we still build this file so that gyp
             # has some sources to link into the component.
             '../../src/v8dll-main.cc',
+            '../../src/defaults.cc',
+          ],
+          'include_dirs': [
+            '../../include',
           ],
           'defines': [
             'V8_SHARED',