Addition of -Wall to CFLAGS

Cleanup warnings produced by above with the exception of those files requiring reorganisation

core/Makefile

@@ -21,7 +21,7 @@
 # 17/06/13	Mark Riddoch		Addition of dependency generation
 
 CC=cc
-CFLAGS=-c -I/usr/include -I../include
+CFLAGS=-c -I/usr/include -I../include -Wall
 LDFLAGS=-rdynamic
 SRCS= atomic.c buffer.c spinlock.c gateway.c gateway_mysql_protocol.c gw_utils.c \
 	utils.c dcb.c load_utils.c

core/dcb.c

@@ -164,7 +164,7 @@ int		epollfd = -1;	// Need to work out how to get this
 void
 printDCB(DCB *dcb)
 {
-	(void)printf("DCB: 0x%x\n", (void *)dcb);
+	(void)printf("DCB: 0x%p\n", (void *)dcb);
 	(void)printf("\tDCB state: %s\n", gw_dcb_state2string(dcb->state));
 	(void)printf("\tQueued write data: %d\n", gwbuf_length(dcb->writeq));
 	(void)printf("\tStatistics:\n");

core/load_utils.c

@@ -163,8 +163,6 @@ void	*handle;
 static MODULES *
 find_module(const char *module)
 {
-MODULES	*ptr = registered;
-
 	while (registered)
 		if (strcmp(registered->module, module))
 			return registered;