<signal.h> shouldn't get you the contents of <errno.h>, and <fcntl.h> shouldn't get you the contents of <unistd.h>. Change-Id: I347499cd8671bfee98e6b8e875a97cab3a3655d3
Change-Id: Ic591e22fa5b363bb68376b9f25814c0e5bd83fbf