[PATCH] turn many #if $undefined_string into #ifdef $undefined_string

turn many #if $undefined_string into #ifdef $undefined_string to fix some
warnings after -Wno-def was added to global CFLAGS

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/net/ne.c b/drivers/net/ne.c
index 6c57096..d209a15 100644
--- a/drivers/net/ne.c
+++ b/drivers/net/ne.c
@@ -129,9 +129,9 @@
 #define NESM_START_PG	0x40	/* First page of TX buffer */
 #define NESM_STOP_PG	0x80	/* Last page +1 of RX ring */
 
-#ifdef CONFIG_PLAT_MAPPI
+#if defined(CONFIG_PLAT_MAPPI)
 #  define DCR_VAL 0x4b
-#elif CONFIG_PLAT_OAKS32R
+#elif defined(CONFIG_PLAT_OAKS32R)
 #  define DCR_VAL 0x48
 #else
 #  define DCR_VAL 0x49