diff --git a/ChangeLog b/ChangeLog
index 508841dfc1e0d55f225e5867bcb946ec48f1c38f..3ec6abdebe91d1f2605358accbc2c54a07136690 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -284,3 +284,6 @@
* NSH ifconfig command now shows uIP status was well (examples/nsh)
0.3.6 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
+
+ * Changes for use with SDCC compiler
+
diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index 27a436ffe8daec3b0f4e9d00100fbbb7c88cdc4c..7b2ffe3a6e52e181db639a24911ae78ef0d85ccb 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -695,6 +695,7 @@ Other memory:
<pre><ul>
0.3.6 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
+ * Changes for use with SDCC compiler
</pre></ul>
<table width ="100%">
diff --git a/TODO b/TODO
index b6dc42e69cec90e455774d8466fd5a3b83f5f56d..69250b1692f795dcc108a43c15f201be476a5245 100644
--- a/TODO
+++ b/TODO
@@ -18,7 +18,7 @@ NuttX TODO List (Last updated December 13, 2007)
(1) ARM/DM320 (arch/arm/src/dm320/)
(2) ARM/LPC214x (arch/arm/src/lpc214x/)
(3) pjrc-8052 / MCS51 (arch/pjrc-8051/)
-
+ (0) z80 (arch/z80/)
o Task/Scheduler (sched/)
^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/arch/pjrc-8051/src/up_unblocktask.c b/arch/pjrc-8051/src/up_unblocktask.c
index 76bc693c97785ec87037a1d6c1dbf227567f3936..303283c28b4a439a7114c5fc9fb41e16bad3e041 100644
--- a/arch/pjrc-8051/src/up_unblocktask.c
+++ b/arch/pjrc-8051/src/up_unblocktask.c
@@ -38,10 +38,13 @@
************************************************************/
#include <nuttx/config.h>
+
#include <sys/types.h>
#include <sched.h>
#include <debug.h>
+
#include <nuttx/arch.h>
+
#include "clock_internal.h"
#include "os_internal.h"
#include "up_internal.h"
diff --git a/include/arpa/inet.h b/include/arpa/inet.h
index ee0b1be7025edc9e4e187c35490c62c79c2deedf..15871ef3cc83bc7f20d689bbf05cc5740a979972 100644
--- a/include/arpa/inet.h
+++ b/include/arpa/inet.h
@@ -91,15 +91,28 @@ EXTERN uint16 htons (uint16 hs);
/* Functions to manipulate address representations */
-EXTERN int inet_aton(const char *cp, struct in_addr *inp);
-EXTERN in_addr_t inet_addr(const char *cp);
-EXTERN in_addr_t inet_network(const char *cp);
-EXTERN char *inet_ntoa(struct in_addr in);
-EXTERN struct in_addr inet_makeaddr(in_addr_t net, in_addr_t host);
+EXTERN int inet_aton(FAR const char *cp, FAR struct in_addr *inp);
+EXTERN in_addr_t inet_addr(FAR const char *cp);
+EXTERN in_addr_t inet_network(FAR const char *cp);
+
+#ifdef CONFIG_CAN_PASS_STRUCTS
+EXTERN FAR char *inet_ntoa(struct in_addr in);
EXTERN in_addr_t inet_lnaof(struct in_addr in);
EXTERN in_addr_t inet_netof(struct in_addr in);
-EXTERN int inet_pton(int af, const char *cp, void *buf);
-EXTERN const char *inet_ntop(int af, const void *cp, char *buf, socklen_t len);
+#else
+EXTERN FAR char *_inet_ntoa(in_addr_t in);
+# define inet_ntoa(in) _inet_ntoa(in.s_addr);
+
+EXTERN in_addr_t _inet_lnaof(in_addr_t in);
+# define inet_lnaof(in) _inet_lnaof(in.s_addr);
+
+EXTERN in_addr_t _inet_netof(in_addr_t in);
+# define inet_netof(in) _inet_netof(in.s_addr);
+#endif
+EXTERN struct in_addr inet_makeaddr(in_addr_t net, in_addr_t host);
+
+EXTERN int inet_pton(int af, FAR const char *cp, FAR void *buf);
+EXTERN const char *inet_ntop(int af, FAR const void *cp, FAR char *buf, socklen_t len);
#undef EXTERN
#ifdef __cplusplus
diff --git a/include/stdlib.h b/include/stdlib.h
index 6e7f44112240583891e1059b3ca53a4fa4e1c414..c1eaf28d004468ff558ddf6b96537af2b4ead4a2 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -105,8 +105,8 @@ EXTERN int rand(void);
#ifndef CONFIG_DISABLE_ENIVRON
EXTERN FAR char **get_environ_ptr( void );
-EXTERN FAR char *getenv(const char *name);
-EXTERN int putenv(char *string);
+EXTERN FAR char *getenv(FAR const char *name);
+EXTERN int putenv(FAR char *string);
EXTERN int clearenv(void);
EXTERN int setenv(const char *name, const char *value, int overwrite);
EXTERN int unsetenv(const char *name);
diff --git a/include/sys/types.h b/include/sys/types.h
index 1788784b5064a26c28626091b4b87b339411f94a..0460c5e5c2d139e95f1dbc6d7240201594fed37c 100644
--- a/include/sys/types.h
+++ b/include/sys/types.h
@@ -1,5 +1,5 @@
/************************************************************
- * types.h
+ * sys/types.h
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
diff --git a/lib/lib_getenv.c b/lib/lib_getenv.c
index bddd2cb0aafcccf3d18d6ed59e6c8f6f48b4e4d0..2be69ba3c43bae888c54120e159152551c29c443 100644
--- a/lib/lib_getenv.c
+++ b/lib/lib_getenv.c
@@ -96,7 +96,7 @@ static const char environment[] = "";
*
************************************************************/
-char *getenv(const char *name)
+FAR char *getenv(FAR const char *name)
{
const char *penv = environment;
int size = sizeof(environment);
diff --git a/lib/lib_inetntoa.c b/lib/lib_inetntoa.c
index 4aea7826ab08ffdafbfab63ef8e88e1bafe91e42..c94f25a52f0cdeaeef7a16b848a47c610a2d5b93 100644
--- a/lib/lib_inetntoa.c
+++ b/lib/lib_inetntoa.c
@@ -56,10 +56,21 @@
*
****************************************************************************/
-char *inet_ntoa(struct in_addr in)
+#ifdef CONFIG_CAN_PASS_STRUCTS
+FAR char *inet_ntoa(struct in_addr in)
{
static char buffer[18];
char *ptr = (char*)&in.s_addr;
sprintf(buffer, "%d.%d.%d.%d", ptr[0], ptr[1], ptr[2], ptr[3]);
return buffer;
}
+#else
+FAR char *_inet_ntoa(in_addr_t in)
+{
+ static char buffer[18];
+ FAR char *ptr = (FAR char*)∈
+ sprintf(buffer, "%d.%d.%d.%d", ptr[0], ptr[1], ptr[2], ptr[3]);
+ return buffer;
+}
+#endif
+