diff --git a/common/env_common.c b/common/env_common.c
index 57221ef..61c4be5 100644
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -37,8 +37,6 @@
 /************************************************************************
  * Default settings to be used when no valid environment is found
  */
-#define XMK_STR(x)	#x
-#define MK_STR(x)	XMK_STR(x)
 
 const uchar default_environment[] = {
 #ifdef	CONFIG_BOOTARGS
@@ -54,40 +52,40 @@
 	"nfsboot="	CONFIG_NFSBOOTCOMMAND		"\0"
 #endif
 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
-	"bootdelay="	MK_STR(CONFIG_BOOTDELAY)	"\0"
+	"bootdelay="	__stringify(CONFIG_BOOTDELAY)	"\0"
 #endif
 #if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
-	"baudrate="	MK_STR(CONFIG_BAUDRATE)		"\0"
+	"baudrate="	__stringify(CONFIG_BAUDRATE)	"\0"
 #endif
 #ifdef	CONFIG_LOADS_ECHO
-	"loads_echo="	MK_STR(CONFIG_LOADS_ECHO)	"\0"
+	"loads_echo="	__stringify(CONFIG_LOADS_ECHO)	"\0"
 #endif
 #ifdef	CONFIG_ETHADDR
-	"ethaddr="	MK_STR(CONFIG_ETHADDR)		"\0"
+	"ethaddr="	__stringify(CONFIG_ETHADDR)	"\0"
 #endif
 #ifdef	CONFIG_ETH1ADDR
-	"eth1addr="	MK_STR(CONFIG_ETH1ADDR)		"\0"
+	"eth1addr="	__stringify(CONFIG_ETH1ADDR)	"\0"
 #endif
 #ifdef	CONFIG_ETH2ADDR
-	"eth2addr="	MK_STR(CONFIG_ETH2ADDR)		"\0"
+	"eth2addr="	__stringify(CONFIG_ETH2ADDR)	"\0"
 #endif
 #ifdef	CONFIG_ETH3ADDR
-	"eth3addr="	MK_STR(CONFIG_ETH3ADDR)		"\0"
+	"eth3addr="	__stringify(CONFIG_ETH3ADDR)	"\0"
 #endif
 #ifdef	CONFIG_ETH4ADDR
-	"eth4addr="	MK_STR(CONFIG_ETH4ADDR)		"\0"
+	"eth4addr="	__stringify(CONFIG_ETH4ADDR)	"\0"
 #endif
 #ifdef	CONFIG_ETH5ADDR
-	"eth5addr="	MK_STR(CONFIG_ETH5ADDR)		"\0"
+	"eth5addr="	__stringify(CONFIG_ETH5ADDR)	"\0"
 #endif
 #ifdef	CONFIG_ETHPRIME
 	"ethprime="	CONFIG_ETHPRIME			"\0"
 #endif
 #ifdef	CONFIG_IPADDR
-	"ipaddr="	MK_STR(CONFIG_IPADDR)		"\0"
+	"ipaddr="	__stringify(CONFIG_IPADDR)	"\0"
 #endif
 #ifdef	CONFIG_SERVERIP
-	"serverip="	MK_STR(CONFIG_SERVERIP)		"\0"
+	"serverip="	__stringify(CONFIG_SERVERIP)	"\0"
 #endif
 #ifdef	CONFIG_SYS_AUTOLOAD
 	"autoload="	CONFIG_SYS_AUTOLOAD		"\0"
@@ -99,25 +97,25 @@
 	"rootpath="	CONFIG_ROOTPATH			"\0"
 #endif
 #ifdef	CONFIG_GATEWAYIP
-	"gatewayip="	MK_STR(CONFIG_GATEWAYIP)	"\0"
+	"gatewayip="	__stringify(CONFIG_GATEWAYIP)	"\0"
 #endif
 #ifdef	CONFIG_NETMASK
-	"netmask="	MK_STR(CONFIG_NETMASK)		"\0"
+	"netmask="	__stringify(CONFIG_NETMASK)	"\0"
 #endif
 #ifdef	CONFIG_HOSTNAME
-	"hostname="	MK_STR(CONFIG_HOSTNAME)		"\0"
+	"hostname="	__stringify(CONFIG_HOSTNAME)	"\0"
 #endif
 #ifdef	CONFIG_BOOTFILE
 	"bootfile="	CONFIG_BOOTFILE			"\0"
 #endif
 #ifdef	CONFIG_LOADADDR
-	"loadaddr="	MK_STR(CONFIG_LOADADDR)		"\0"
+	"loadaddr="	__stringify(CONFIG_LOADADDR)	"\0"
 #endif
 #ifdef	CONFIG_CLOCKS_IN_MHZ
 	"clocks_in_mhz=1\0"
 #endif
 #if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
-	"pcidelay="	MK_STR(CONFIG_PCI_BOOTDELAY)	"\0"
+	"pcidelay="	__stringify(CONFIG_PCI_BOOTDELAY)"\0"
 #endif
 #ifdef	CONFIG_ENV_VARS_UBOOT_CONFIG
 	"arch="		CONFIG_SYS_ARCH			"\0"