Fix the build for Xcode 5.

Change-Id: Icf8a4917d23114dae62a0e8ac3563587c3bf0361

Conflicts:
	core/combo/HOST_darwin-x86.mk
drop the check-product-copy-files
Revert "should remove any JDK compiler check annoyances"

This reverts commit 4fab37984a4de856981132ceac39299acd82ef62.