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

src/cpu/emulation/qemu-x86/northbridge.c

@@ -8,6 +8,7 @@
 #include <bitops.h>
 #include "chip.h"
 #include "northbridge.h"
+#include <delay.h>
 
 static void ram_resource(device_t dev, unsigned long index,
 	unsigned long basek, unsigned long sizek)
@@ -157,9 +158,9 @@ struct chip_operations cpu_emulation_qemu_x86_ops = {
 	.enable_dev = enable_dev,
 };
 
-void udelay(int usecs)
+void udelay(unsigned usecs)
 {
-	int i;
+	unsigned i;
 	for(i = 0; i < usecs; i++)
 		inb(0x80);
 }