Add CONFIG_WARNINGS_ARE_ERRORS and set it for qemu.

Remove all remaining warnings from qemu.

Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4939 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

util/x86emu/x86.c

@@ -126,7 +126,7 @@ static void setup_realmode_idt(void)
 void run_bios(struct device *dev, unsigned long addr)
 {
 	/* clear vga bios data area */
-	memset(0x400, 0, 0x200);
+	memset((void *)0x400, 0, 0x200);
 	
 	/* Set up C interrupt handlers */
 	setup_interrupt_handlers();