diff --git a/apps/powertrace/powertrace.c b/apps/powertrace/powertrace.c
index 139d96af8..6d8f2936f 100644
--- a/apps/powertrace/powertrace.c
+++ b/apps/powertrace/powertrace.c
@@ -48,15 +48,15 @@
 
 struct powertrace_sniff_stats {
   struct powertrace_sniff_stats *next;
-  uint32_t num_input, num_output;
-  uint32_t input_txtime, input_rxtime;
-  uint32_t output_txtime, output_rxtime;
+  unsigned long num_input, num_output;
+  unsigned long input_txtime, input_rxtime;
+  unsigned long output_txtime, output_rxtime;
 #if NETSTACK_CONF_WITH_IPV6
   uint16_t proto; /* includes proto + possibly flags */
 #endif
   uint16_t channel;
-  uint32_t last_input_txtime, last_input_rxtime;
-  uint32_t last_output_txtime, last_output_rxtime;
+  unsigned long last_input_txtime, last_input_rxtime;
+  unsigned long last_output_txtime, last_output_rxtime;
 };
 
 #define INPUT  1
@@ -72,17 +72,17 @@ PROCESS(powertrace_process, "Periodic power output");
 void
 powertrace_print(char *str)
 {
-  static uint32_t last_cpu, last_lpm, last_transmit, last_listen;
-  static uint32_t last_idle_transmit, last_idle_listen;
+  static unsigned long last_cpu, last_lpm, last_transmit, last_listen;
+  static unsigned long last_idle_transmit, last_idle_listen;
 
-  uint32_t cpu, lpm, transmit, listen;
-  uint32_t all_cpu, all_lpm, all_transmit, all_listen;
-  uint32_t idle_transmit, idle_listen;
-  uint32_t all_idle_transmit, all_idle_listen;
+  unsigned long cpu, lpm, transmit, listen;
+  unsigned long all_cpu, all_lpm, all_transmit, all_listen;
+  unsigned long idle_transmit, idle_listen;
+  unsigned long all_idle_transmit, all_idle_listen;
 
-  static uint32_t seqno;
+  static unsigned long seqno;
 
-  uint32_t time, all_time, radio, all_radio;
+  unsigned long time, all_time, radio, all_radio;
   
   struct powertrace_sniff_stats *s;
 
@@ -287,13 +287,8 @@ output_sniffer(int mac_status)
 static void
 sniffprint(char *prefix, int seqno)
 {
-  const linkaddr_t *sender, *receiver, *esender, *ereceiver;
-
-  sender = packetbuf_addr(PACKETBUF_ADDR_SENDER);
-  receiver = packetbuf_addr(PACKETBUF_ADDR_RECEIVER);
+  const linkaddr_t *esender;
   esender = packetbuf_addr(PACKETBUF_ADDR_ESENDER);
-  ereceiver = packetbuf_addr(PACKETBUF_ADDR_ERECEIVER);
-
 
   printf("%lu %s %d %u %d %d %d.%d %u %u\n",
          clock_time(),
diff --git a/apps/servreg-hack/servreg-hack.c b/apps/servreg-hack/servreg-hack.c
index f93bf20c3..d7ccf7dac 100644
--- a/apps/servreg-hack/servreg-hack.c
+++ b/apps/servreg-hack/servreg-hack.c
@@ -332,14 +332,10 @@ static void
 parse_incoming_packet(const uint8_t *buf, int len)
 {
   int numregs;
-  int flags;
   int i;
   int bufptr;
 
   numregs = buf[MSG_NUMREGS_OFFSET];
-  flags   = buf[MSG_FLAGS_OFFSET];
-
-  /*  printf("parse_incoming_packet Numregs %d flags %d\n", numregs, flags);*/
 
   bufptr = MSG_ADDRS_OFFSET;
   for(i = 0; i < numregs; ++i) {
diff --git a/apps/shell/shell-crc.c b/apps/shell/shell-crc.c
index 315ca18e2..b3234577a 100644
--- a/apps/shell/shell-crc.c
+++ b/apps/shell/shell-crc.c
@@ -50,6 +50,7 @@
 #define HAVE_ALLOCA 0
 #else
 #define HAVE_ALLOCA 1
+#include <alloca.h>
 #endif
 
 #define DEBUG 0
diff --git a/apps/shell/shell-memdebug.c b/apps/shell/shell-memdebug.c
index 9c6be22a9..e25e5afae 100644
--- a/apps/shell/shell-memdebug.c
+++ b/apps/shell/shell-memdebug.c
@@ -71,7 +71,7 @@ PROCESS_THREAD(shell_poke_process, ev, data)
     PROCESS_EXIT();
   }
   
-  address = (uint8_t *)(int)shell_strtolong(args, &next);
+  address = (uint8_t *)(uintptr_t)shell_strtolong(args, &next);
   if(next == args) {
     shell_output_str(&poke_command, "usage 1", "");
     PROCESS_EXIT();
@@ -106,7 +106,7 @@ PROCESS_THREAD(shell_peek_process, ev, data)
     PROCESS_EXIT();
   }
   
-  address = (uint8_t *)(int)shell_strtolong(args, &next);
+  address = (uint8_t *)(uintptr_t)shell_strtolong(args, &next);
   if(next == args) {
     shell_output_str(&peek_command, "usage 1", "");
     PROCESS_EXIT();
diff --git a/apps/shell/shell-netperf.c b/apps/shell/shell-netperf.c
index b4e35ed1a..5776945fc 100644
--- a/apps/shell/shell-netperf.c
+++ b/apps/shell/shell-netperf.c
@@ -128,8 +128,8 @@ memcpy_misaligned(void *dest, const void *source, int len)
   int i;
   uint8_t *destptr;
   const uint8_t *sourceptr;
-  if(((int)dest & 1) == 1 ||
-     ((int)source & 1) == 1) {
+  if(((uintptr_t)dest & 1) == 1 ||
+     ((uintptr_t)source & 1) == 1) {
     destptr = dest;
     sourceptr = source;
     for(i = 0; i < len; ++i) {
diff --git a/apps/shell/shell-rime-netcmd.c b/apps/shell/shell-rime-netcmd.c
index cadcd993a..87927065d 100644
--- a/apps/shell/shell-rime-netcmd.c
+++ b/apps/shell/shell-rime-netcmd.c
@@ -129,7 +129,7 @@ PROCESS_THREAD(shell_netcmd_process, ev, data)
 
     /* Terminate the string with a NUL character. */
     msg->netcmd[len] = 0;
-    msg->crc = crc16_data(msg->netcmd, len, 0);
+    msg->crc = crc16_data((unsigned char *)msg->netcmd, len, 0);
     printf("netcmd sending '%s'\n", msg->netcmd);
     trickle_send(&trickle);
   }
@@ -157,7 +157,7 @@ recv_trickle(struct trickle_conn *c)
     msg->netcmd[len] = 0;
     memcpy(&crc, &msg->crc, sizeof(crc));
     
-    if(crc == crc16_data(msg->netcmd, len, 0)) {
+    if(crc == crc16_data((unsigned char *)msg->netcmd, len, 0)) {
       /* Start the server process with the incoming command. */
       process_start(&shell_netcmd_server_process, (void *)msg->netcmd);
     }
diff --git a/apps/shell/shell-rime-sendcmd.c b/apps/shell/shell-rime-sendcmd.c
index b3179c54b..5bbbc4aea 100644
--- a/apps/shell/shell-rime-sendcmd.c
+++ b/apps/shell/shell-rime-sendcmd.c
@@ -133,7 +133,7 @@ PROCESS_THREAD(shell_sendcmd_process, ev, data)
 
   /* Terminate the string with a NUL character. */
   msg->sendcmd[len] = 0;
-  msg->crc = crc16_data(msg->sendcmd, len, 0);
+  msg->crc = crc16_data((unsigned char *)msg->sendcmd, len, 0);
   /*    printf("sendcmd sending '%s'\n", msg->sendcmd);*/
   unicast_send(&uc, &addr);
 
@@ -160,7 +160,7 @@ recv_uc(struct unicast_conn *c, const linkaddr_t *from)
     msg->sendcmd[len] = 0;
     memcpy(&crc, &msg->crc, sizeof(crc));
 
-    if(crc == crc16_data(msg->sendcmd, len, 0)) {
+    if(crc == crc16_data((unsigned char *)msg->sendcmd, len, 0)) {
       /* Start the server process with the incoming command. */
       process_start(&shell_sendcmd_server_process, (void *)msg->sendcmd);
     }
diff --git a/apps/shell/shell-rime.c b/apps/shell/shell-rime.c
index 16061c58d..3e6184ff7 100644
--- a/apps/shell/shell-rime.c
+++ b/apps/shell/shell-rime.c
@@ -301,7 +301,7 @@ recv_collect(const linkaddr_t *originator, uint8_t seqno, uint8_t hops)
 
   /* Copy the collect message header. */
   memcpy(&collect_msg, packetbuf_dataptr(), sizeof(collect_msg));
-  dataptr = ((struct collect_msg *)packetbuf_dataptr())->data;
+  dataptr = (char *)((struct collect_msg *)packetbuf_dataptr())->data;
   
 #if TIMESYNCH_CONF_ENABLED
   latency = timesynch_time() - collect_msg.timestamp;
@@ -321,7 +321,7 @@ recv_collect(const linkaddr_t *originator, uint8_t seqno, uint8_t hops)
     if(packetbuf_datalen() >= COLLECT_MSG_HDRSIZE) {
       len = packetbuf_datalen() - COLLECT_MSG_HDRSIZE;
 
-      if(collect_msg.crc == crc16_data(dataptr, len, 0)) {
+      if(collect_msg.crc == crc16_data((unsigned char *)dataptr, len, 0)) {
 	msg.len = 5 + (packetbuf_datalen() - COLLECT_MSG_HDRSIZE) / 2;
 	linkaddr_copy((linkaddr_t *)&msg.originator, originator);
 	msg.seqno = seqno;
diff --git a/apps/shell/shell-time.c b/apps/shell/shell-time.c
index fb2b7e7f1..6947df7ee 100644
--- a/apps/shell/shell-time.c
+++ b/apps/shell/shell-time.c
@@ -158,7 +158,6 @@ PROCESS_THREAD(shell_repeat_server_process, ev, data)
   static char *command;
   static struct process *started_process;
   char command_copy[MAX_COMMANDLENGTH];
-  int ret;
 
   if(ev == shell_event_input) {
     goto exit;
@@ -172,7 +171,7 @@ PROCESS_THREAD(shell_repeat_server_process, ev, data)
 			   data == &shell_repeat_process);
   {
     strncpy(command_copy, command, MAX_COMMANDLENGTH);
-    ret = shell_start_command(command_copy, (int)strlen(command_copy),
+    shell_start_command(command_copy, (int)strlen(command_copy),
 			      &repeat_command, &started_process);
     
     if(started_process != NULL &&
@@ -202,11 +201,10 @@ repeat_print_usage(void)
 /*---------------------------------------------------------------------------*/
 PROCESS_THREAD(shell_repeat_process, ev, data)
 {
-  static int reps, period, period_left;
+  static int reps, period;
   static char command[MAX_COMMANDLENGTH];
   static struct etimer etimer;
   static int i;
-  static clock_time_t start_time;
   const char *args, *next;
 
   if(ev == shell_event_input) {
@@ -258,7 +256,6 @@ PROCESS_THREAD(shell_repeat_process, ev, data)
   /*  printf("repeats %d period %d command '%s'\n",
       reps, period, command);*/
 
-  start_time = clock_time();
   etimer_set(&etimer, CLOCK_SECOND * period);
   for(i = 0; reps == 0 || i < reps; ++i) {
 
@@ -291,7 +288,6 @@ PROCESS_THREAD(shell_randwait_process, ev, data)
   static struct etimer etimer;
   static struct process *started_process;
   const char *args, *next;
-  int ret;
 
   /*  if(ev == shell_event_input) {
     struct shell_input *input;
@@ -339,7 +335,7 @@ PROCESS_THREAD(shell_randwait_process, ev, data)
 /*   printf("Starting '%s' child %p (%s)\n", command, randwait_command.child, */
 /* 	 randwait_command.child == NULL? "null": randwait_command.child->command); */
   
-  ret = shell_start_command(command, (int)strlen(command),
+  shell_start_command(command, (int)strlen(command),
 			    randwait_command.child, &started_process);
   
   if(started_process != NULL &&
diff --git a/apps/shell/shell-vars.c b/apps/shell/shell-vars.c
index 42948f5aa..b28834f4a 100644
--- a/apps/shell/shell-vars.c
+++ b/apps/shell/shell-vars.c
@@ -51,7 +51,7 @@
 #define SHELL_VARS_RAM_END   SHELL_VARS_CONF_RAM_END
 #else /* SHELL_VARS_CONF_RAM_BEGIN */
 #define SHELL_VARS_RAM_BEGIN 0
-#define SHELL_VARS_RAM_END (unsigned int)-1
+#define SHELL_VARS_RAM_END (uintptr_t)-1
 #endif /* SHELL_VARS_CONF_RAM_BEGIN */
 
 /*---------------------------------------------------------------------------*/
@@ -77,8 +77,8 @@ PROCESS_THREAD(shell_vars_process, ev, data)
   
   for(i = 0; i < symbols_nelts; ++i) {
     if(symbols[i].name != NULL &&
-       (unsigned int)symbols[i].value >= SHELL_VARS_RAM_BEGIN &&
-       (unsigned int)symbols[i].value <= SHELL_VARS_RAM_END) {
+       (uintptr_t)symbols[i].value >= SHELL_VARS_RAM_BEGIN &&
+       (uintptr_t)symbols[i].value <= SHELL_VARS_RAM_END) {
       shell_output_str(&vars_command, (char *)symbols[i].name, "");
     }
   }
diff --git a/apps/webbrowser/webclient.c b/apps/webbrowser/webclient.c
index f8f63d413..b4487ca26 100644
--- a/apps/webbrowser/webclient.c
+++ b/apps/webbrowser/webclient.c
@@ -200,7 +200,7 @@ window_copy(int curptr, const char *data, unsigned char datalen)
     len = windowend - windowstart;
   }
 
-  strncpy(windowptr + windowstart, data, len);
+  strncpy((char *)(windowptr + windowstart), data, len);
   windowstart += len;
 
   return curptr + datalen;
@@ -217,7 +217,7 @@ senddata(void)
     windowstart = s.getrequestptr;
     curptr = 0;
     windowend = windowstart + uip_mss();
-    windowptr = (char *)uip_appdata - windowstart;
+    windowptr = (unsigned char *)uip_appdata - windowstart;
 
     curptr = window_copy(curptr, http_get, sizeof(http_get) - 1);
     curptr = window_copy(curptr, s.file, (unsigned char)strlen(s.file));
diff --git a/apps/webbrowser/www.c b/apps/webbrowser/www.c
index 87fdd9078..0f1be0ee8 100644
--- a/apps/webbrowser/www.c
+++ b/apps/webbrowser/www.c
@@ -843,7 +843,9 @@ add_pagewidget(char *text, unsigned char size, char *attrib, unsigned char type,
 void
 htmlparser_newline(void)
 {
+#ifdef WITH_PETSCII
   char *wptr;
+#endif /* WITH_PETSCII */
 
   if(++newlines > 2) {
     return;
@@ -863,8 +865,10 @@ htmlparser_newline(void)
   ++y;
   x = 0;
 
+#ifdef WITH_PETSCII
   wptr = webpageptr - WWW_CONF_WEBPAGE_WIDTH;
   petsciiconv_topetscii(wptr, WWW_CONF_WEBPAGE_WIDTH);
+#endif /* WITH_PETSCII */
 
   if(y == WWW_CONF_WEBPAGE_HEIGHT) {
     loading = 0;
diff --git a/apps/webserver/urlconv.c b/apps/webserver/urlconv.c
index 3d5e583df..d4f32f484 100644
--- a/apps/webserver/urlconv.c
+++ b/apps/webserver/urlconv.c
@@ -80,7 +80,7 @@ urlconv_tofilename(char *dest, char *source, unsigned char maxlen)
   *dest = ISO_slash;
   strncpy(dest + 1, wwwroot, wwwrootlen);
   len = 0;
-  from = source; to = dest + wwwrootlen;
+  from = (unsigned char *)source; to = (unsigned char *)dest + wwwrootlen;
   maxlen -= 2 + wwwrootlen;
   do {
     c = *(from++);
@@ -139,7 +139,7 @@ urlconv_tofilename(char *dest, char *source, unsigned char maxlen)
     }
   } while(c);
   if(*to == ISO_slash && (len + sizeof(http_index_htm) - 3) < maxlen) {
-    strcpy(to, http_index_htm);  // add index.htm
+    strcpy((char *)to, http_index_htm);  // add index.htm
   } else {
     ++to;
     *to = 0;
diff --git a/core/ctk/ctk-filedialog.c b/core/ctk/ctk-filedialog.c
index 0bafcc4a8..ca4bf523e 100644
--- a/core/ctk/ctk-filedialog.c
+++ b/core/ctk/ctk-filedialog.c
@@ -155,14 +155,14 @@ ctk_filedialog_eventhandler(struct ctk_filedialog_state *s,
       }
       return 1; 
     } else if(ev == ctk_signal_keypress) {
-      if((ctk_arch_key_t)data == CH_CURS_UP) {
+      if((char)(size_t)data == CH_CURS_UP) {
 	clearptr();
 	if(fileptr > 0) {
 	  --fileptr;
 	}
 	showptr();
 	return 1;
-      } else if((ctk_arch_key_t)data == CH_CURS_DOWN) {
+      } else if((char)(size_t)data == CH_CURS_DOWN) {
 	clearptr();
 	if(fileptr < FILES_HEIGHT - 1) {
 	  ++fileptr;
diff --git a/core/ctk/ctk.c b/core/ctk/ctk.c
index 56f962b4a..699cf0198 100644
--- a/core/ctk/ctk.c
+++ b/core/ctk/ctk.c
@@ -852,7 +852,9 @@ add_redrawwidget(struct ctk_widget *w)
 static void
 widget_redraw(struct ctk_widget *widget)
 {
+#if CTK_CONF_WINDOWS
   struct ctk_window *window;
+#endif /* CTK_CONF_WINDOWS */
 
   if(mode != CTK_MODE_NORMAL || widget == NULL) {
     return;
@@ -870,8 +872,8 @@ widget_redraw(struct ctk_widget *widget)
   if(menus.open == NULL)
 #endif /* CTK_CONF_MENUS */
   {
-    window = widget->window;
 #if CTK_CONF_WINDOWS
+    window = widget->window;
     if(window == dialog) {
       ctk_draw_widget(widget, CTK_FOCUS_DIALOG, 0, height);
     } else if(dialog == NULL &&
diff --git a/core/net/ipv6/uip-ds6.c b/core/net/ipv6/uip-ds6.c
index 2141ac2c1..148c8aa24 100644
--- a/core/net/ipv6/uip-ds6.c
+++ b/core/net/ipv6/uip-ds6.c
@@ -83,7 +83,9 @@ static uip_ipaddr_t loc_fipaddr;
 /* Pointers used in this file */
 static uip_ds6_addr_t *locaddr;
 static uip_ds6_maddr_t *locmaddr;
+#if UIP_DS6_AADDR_NB
 static uip_ds6_aaddr_t *locaaddr;
+#endif /* UIP_DS6_AADDR_NB */
 static uip_ds6_prefix_t *locprefix;
 
 /*---------------------------------------------------------------------------*/
@@ -458,6 +460,7 @@ uip_ds6_maddr_lookup(const uip_ipaddr_t *ipaddr)
 uip_ds6_aaddr_t *
 uip_ds6_aaddr_add(uip_ipaddr_t *ipaddr)
 {
+#if UIP_DS6_AADDR_NB
   if(uip_ds6_list_loop
      ((uip_ds6_element_t *)uip_ds6_if.aaddr_list, UIP_DS6_AADDR_NB,
       sizeof(uip_ds6_aaddr_t), ipaddr, 128,
@@ -466,6 +469,7 @@ uip_ds6_aaddr_add(uip_ipaddr_t *ipaddr)
     uip_ipaddr_copy(&locaaddr->ipaddr, ipaddr);
     return locaaddr;
   }
+#endif /* UIP_DS6_AADDR_NB */
   return NULL;
 }
 
@@ -483,11 +487,13 @@ uip_ds6_aaddr_rm(uip_ds6_aaddr_t *aaddr)
 uip_ds6_aaddr_t *
 uip_ds6_aaddr_lookup(uip_ipaddr_t *ipaddr)
 {
+#if UIP_DS6_AADDR_NB
   if(uip_ds6_list_loop((uip_ds6_element_t *)uip_ds6_if.aaddr_list,
 		       UIP_DS6_AADDR_NB, sizeof(uip_ds6_aaddr_t), ipaddr, 128,
 		       (uip_ds6_element_t **)&locaaddr) == FOUND) {
     return locaaddr;
   }
+#endif /* UIP_DS6_AADDR_NB */
   return NULL;
 }
 
diff --git a/core/net/ipv6/uip-ds6.h b/core/net/ipv6/uip-ds6.h
index 9c470a1db..b111d0f5b 100644
--- a/core/net/ipv6/uip-ds6.h
+++ b/core/net/ipv6/uip-ds6.h
@@ -216,9 +216,15 @@ typedef struct uip_ds6_netif {
   uint32_t reachable_time;      /* in msec */
   uint32_t retrans_timer;       /* in msec */
   uint8_t maxdadns;
+#if UIP_DS6_ADDR_NB
   uip_ds6_addr_t addr_list[UIP_DS6_ADDR_NB];
+#endif /* UIP_DS6_ADDR_NB */
+#if UIP_DS6_AADDR_NB
   uip_ds6_aaddr_t aaddr_list[UIP_DS6_AADDR_NB];
+#endif /* UIP_DS6_AADDR_NB */
+#if UIP_DS6_MADDR_NB
   uip_ds6_maddr_t maddr_list[UIP_DS6_MADDR_NB];
+#endif /* UIP_DS6_MADDR_NB */
 } uip_ds6_netif_t;
 
 /** \brief Generic type for a DS6, to use a common loop though all DS */
diff --git a/core/net/ipv6/uip6.c b/core/net/ipv6/uip6.c
index 98edee6a5..63858017c 100644
--- a/core/net/ipv6/uip6.c
+++ b/core/net/ipv6/uip6.c
@@ -288,7 +288,10 @@ struct uip_icmp6_conn uip_icmp6_conns;
 /*---------------------------------------------------------------------------*/
 /* Functions                                                                 */
 /*---------------------------------------------------------------------------*/
-#if (!UIP_ARCH_ADD32 && UIP_TCP)
+#if UIP_TCP
+#if UIP_ARCH_ADD32
+void uip_add32(uint8_t *op32, uint16_t op16);
+#else /* UIP_ARCH_ADD32 */
 void
 uip_add32(uint8_t *op32, uint16_t op16)
 {
@@ -315,8 +318,8 @@ uip_add32(uint8_t *op32, uint16_t op16)
     }
   }
 }
-
-#endif /* UIP_ARCH_ADD32 && UIP_TCP */
+#endif /* UIP_ARCH_ADD32 */
+#endif /* UIP_TCP */
 
 #if ! UIP_ARCH_CHKSUM
 /*---------------------------------------------------------------------------*/
diff --git a/core/net/llsec/anti-replay.c b/core/net/llsec/anti-replay.c
index c56d90e0b..7c392bff7 100644
--- a/core/net/llsec/anti-replay.c
+++ b/core/net/llsec/anti-replay.c
@@ -55,7 +55,8 @@ anti_replay_set_counter(void)
 {
   frame802154_frame_counter_t reordered_counter;
   
-  reordered_counter.u32 = LLSEC802154_HTONL(++counter);
+  ++counter;
+  reordered_counter.u32 = LLSEC802154_HTONL(counter);
   
   packetbuf_set_attr(PACKETBUF_ATTR_FRAME_COUNTER_BYTES_0_1, reordered_counter.u16[0]);
   packetbuf_set_attr(PACKETBUF_ATTR_FRAME_COUNTER_BYTES_2_3, reordered_counter.u16[1]);
diff --git a/core/net/mac/nullrdc.c b/core/net/mac/nullrdc.c
index 04baa90bd..5cec23a3d 100644
--- a/core/net/mac/nullrdc.c
+++ b/core/net/mac/nullrdc.c
@@ -48,6 +48,7 @@
 
 #if CONTIKI_TARGET_COOJA
 #include "lib/simEnvChange.h"
+#include "sys/cooja_mt.h"
 #endif /* CONTIKI_TARGET_COOJA */
 
 #define DEBUG 0
diff --git a/cpu/avr/bootloader.c b/cpu/avr/bootloader.c
index 20a174ed0..844dc20a1 100644
--- a/cpu/avr/bootloader.c
+++ b/cpu/avr/bootloader.c
@@ -12,7 +12,6 @@
 /* MCUSR is a deprecated name but older avr-libc versions may define it */
 #if !defined (MCUCSR)
 # if defined (MCUSR)
-#  warning *** MCUCSR not defined, using MCUSR instead ***
 #  define MCUCSR MCUSR
 # endif
 #endif
diff --git a/cpu/avr/radio/rf230bb/rf230bb.c b/cpu/avr/radio/rf230bb/rf230bb.c
index c85608e09..d00a24d72 100644
--- a/cpu/avr/radio/rf230bb/rf230bb.c
+++ b/cpu/avr/radio/rf230bb/rf230bb.c
@@ -237,6 +237,8 @@ typedef enum{
 PROCESS(rf230_process, "RF230 driver");
 /*---------------------------------------------------------------------------*/
 
+int rf230_interrupt(void);
+
 static int rf230_on(void);
 static int rf230_off(void);
 
diff --git a/cpu/avr/watchdog.c b/cpu/avr/watchdog.c
index e7aaee9bd..b37691e39 100644
--- a/cpu/avr/watchdog.c
+++ b/cpu/avr/watchdog.c
@@ -67,7 +67,6 @@
 /* MCUSR is a deprecated name but older avr-libc versions may define it */
 #if !defined (MCUCSR)
 # if defined (MCUSR)
-#  warning *** MCUCSR not defined, using MCUSR instead ***
 #  define MCUCSR MCUSR
 # endif
 #endif
diff --git a/cpu/cc2538/Makefile.cc2538 b/cpu/cc2538/Makefile.cc2538
index 2ace72f76..0d4d3c73f 100644
--- a/cpu/cc2538/Makefile.cc2538
+++ b/cpu/cc2538/Makefile.cc2538
@@ -22,6 +22,10 @@ LDFLAGS += -Wl,-Map=$(@:.elf=-$(TARGET).map),--cref,--no-warn-mismatch
 OBJCOPY_FLAGS += -O binary --gap-fill 0xff
 OBJDUMP_FLAGS += --disassemble --source --disassembler-options=force-thumb
 
+ifdef WERROR
+CFLAGS += -Werror
+endif
+
 ### Are we building with code size optimisations?
 ifeq ($(SMALL),1)
   CFLAGS += -Os
diff --git a/cpu/cc26xx-cc13xx/Makefile.cc26xx-cc13xx b/cpu/cc26xx-cc13xx/Makefile.cc26xx-cc13xx
index 781f79b3f..f6ac275da 100644
--- a/cpu/cc26xx-cc13xx/Makefile.cc26xx-cc13xx
+++ b/cpu/cc26xx-cc13xx/Makefile.cc26xx-cc13xx
@@ -41,6 +41,10 @@ LDFLAGS += -Wl,-Map=$(@:.elf=-$(TARGET).map),--cref,--no-warn-mismatch
 OBJCOPY_FLAGS += -O binary --gap-fill 0xff
 OBJDUMP_FLAGS += --disassemble --source --disassembler-options=force-thumb
 
+ifdef WERROR
+CFLAGS += -Werror
+endif
+
 ### Are we building with code size optimisations?
 ifeq ($(SMALL),1)
   CFLAGS += -Os
diff --git a/cpu/cc26xx-cc13xx/lib/cc13xxware b/cpu/cc26xx-cc13xx/lib/cc13xxware
index 63ed52888..6bdb6da3f 160000
--- a/cpu/cc26xx-cc13xx/lib/cc13xxware
+++ b/cpu/cc26xx-cc13xx/lib/cc13xxware
@@ -1 +1 @@
-Subproject commit 63ed52888467ea7d403b0c743852162395232c9e
+Subproject commit 6bdb6da3fa9682303799e5c3b1f755398e87fc99
diff --git a/cpu/cc26xx-cc13xx/lib/cc26xxware b/cpu/cc26xx-cc13xx/lib/cc26xxware
index 0e82b18bf..0270b50ac 160000
--- a/cpu/cc26xx-cc13xx/lib/cc26xxware
+++ b/cpu/cc26xx-cc13xx/lib/cc26xxware
@@ -1 +1 @@
-Subproject commit 0e82b18bf2c69fb0a40af4d2496db2a3dc721cec
+Subproject commit 0270b50ac750f8f3348a98f900a470e7a65ffce8
diff --git a/cpu/msp430/Makefile.msp430 b/cpu/msp430/Makefile.msp430
index 81c71f51a..6d5370575 100644
--- a/cpu/msp430/Makefile.msp430
+++ b/cpu/msp430/Makefile.msp430
@@ -35,10 +35,17 @@ endif
 CONTIKI_CPU_DIRS = $(CONTIKI_CPU_FAM_DIR) . dev
 
 MSP430     = msp430.c flash.c clock.c leds.c leds-arch.c \
-             watchdog.c lpm.c mtarch.c rtimer-arch.c
+             watchdog.c lpm.c rtimer-arch.c
 UIPDRIVERS = me.c me_tabs.c slip.c crc16.c
 ELFLOADER  = elfloader.c elfloader-msp430.c symtab.c
 
+ifndef CPU_HAS_MSP430X
+# include mtarch.c only in the non-large memory model case, because
+# the current implementation assumes 16-bit addresses (function pointers
+# stored as "unsigned short").
+MSP430 += mtarch.c
+endif
+
 ifeq ($(TARGET_MEMORY_MODEL),large)
 ELFLOADER = elfloader-msp430x.c symtab.c
 endif
diff --git a/cpu/msp430/cc2420-arch-sfd.c b/cpu/msp430/cc2420-arch-sfd.c
index f7535b276..6cd7d2606 100644
--- a/cpu/msp430/cc2420-arch-sfd.c
+++ b/cpu/msp430/cc2420-arch-sfd.c
@@ -45,6 +45,8 @@ ISR(TIMERB1, cc2420_timerb1_interrupt)
   ENERGEST_ON(ENERGEST_TYPE_IRQ);
   /* always read TBIV to clear IFG */
   tbiv = TBIV;
+  /* read and discard tbiv to avoid "variable set but not used" warning */
+  (void)tbiv;
   if(CC2420_SFD_IS_1) {
     cc2420_sfd_counter++;
     cc2420_sfd_start_time = TBCCR1;
diff --git a/cpu/msp430/cc2520-arch-sfd.c b/cpu/msp430/cc2520-arch-sfd.c
index bafa11b1c..5e7bee813 100644
--- a/cpu/msp430/cc2520-arch-sfd.c
+++ b/cpu/msp430/cc2520-arch-sfd.c
@@ -44,6 +44,8 @@ ISR(TIMERB1, cc2520_timerb1_interrupt)
   ENERGEST_ON(ENERGEST_TYPE_IRQ);
   /* always read TBIV to clear IFG */
   tbiv = TBIV;
+  /* read and discard tbiv to avoid "variable set but not used" warning */
+  (void)tbiv;
   if(CC2520_SFD_IS_1) {
     cc2520_sfd_counter++;
     cc2520_sfd_start_time = TBCCR1;
diff --git a/cpu/native/Makefile.native b/cpu/native/Makefile.native
index ea7a2bc27..2adb48070 100644
--- a/cpu/native/Makefile.native
+++ b/cpu/native/Makefile.native
@@ -14,10 +14,10 @@ NM       ?= nm
 OBJCOPY  ?= objcopy
 STRIP    ?= strip
 ifdef WERROR
-CFLAGSWERROR=-Werror -pedantic -std=c99 -Werror
+CFLAGSWERROR=-Werror
 endif
 CFLAGSNO = -Wall -g -I/usr/local/include $(CFLAGSWERROR)
-CFLAGS  += $(CFLAGSNO) -O
+CFLAGS  += $(CFLAGSNO)
 
 ifeq ($(HOST_OS),Darwin)
 AROPTS = -r
diff --git a/cpu/native/net/linuxradio-drv.c b/cpu/native/net/linuxradio-drv.c
index 785bd1d87..a2be32940 100644
--- a/cpu/native/net/linuxradio-drv.c
+++ b/cpu/native/net/linuxradio-drv.c
@@ -43,6 +43,8 @@
 #include "net/packetbuf.h"
 #include "net/netstack.h"
 
+#include <stdlib.h>
+#include <stdio.h>
 #include <sys/ioctl.h>
 #include <string.h>
 #include <sys/types.h>
diff --git a/cpu/native/net/tapdev.c b/cpu/native/net/tapdev.c
index e58b3c475..b60cd1946 100644
--- a/cpu/native/net/tapdev.c
+++ b/cpu/native/net/tapdev.c
@@ -93,8 +93,11 @@ static void
 remove_route(void)
 {
   char buf[1024];
+  int ret;
+
   snprintf(buf, sizeof(buf), "route delete -net 172.18.0.0");
-  system(buf);
+  ret = system(buf);
+  fprintf(stderr, "ret %d\n", ret);
   fprintf(stderr, "%s\n", buf);
 
 }
@@ -103,7 +106,8 @@ void
 tapdev_init(void)
 {
   char buf[1024];
-  
+  int ret;
+
   fd = open(DEVTAP, O_RDWR);
   if(fd == -1) {
     perror("tapdev: tapdev_init: open");
@@ -123,7 +127,8 @@ tapdev_init(void)
 #endif /* Linux */
 
   snprintf(buf, sizeof(buf), "ifconfig tap0 inet 172.18.0.1/16");
-  system(buf);
+  ret = system(buf);
+  fprintf(stderr, "ret %d\n", ret);
   fprintf(stderr, "%s\n", buf);
 #ifdef linux
   /* route add for linux */
@@ -132,8 +137,9 @@ tapdev_init(void)
   /* route add for freebsd */
   snprintf(buf, sizeof(buf), "route add -net 172.18.0.0/16 -iface tap0");
 #endif /* linux */
-  
-  system(buf);
+
+  ret = system(buf);
+  fprintf(stderr, "ret %d\n", ret);
   fprintf(stderr, "%s\n", buf);
   atexit(remove_route);
 
diff --git a/cpu/native/net/tapdev6.c b/cpu/native/net/tapdev6.c
index 8ff74e09c..d69ac290e 100644
--- a/cpu/native/net/tapdev6.c
+++ b/cpu/native/net/tapdev6.c
@@ -331,7 +331,10 @@ tapdev_init(void)
   */
   /* freebsd */
   snprintf(buf, sizeof(buf), "ifconfig tap0 up");
-  system(buf);
+  if(system(buf) == -1) {
+    perror("tapdev: system: ifconfig");
+    return;
+  }
   printf("%s\n", buf);
   
   /*  */
diff --git a/cpu/rl78/Makefile.rl78 b/cpu/rl78/Makefile.rl78
index a20382b7f..d5b68af68 100755
--- a/cpu/rl78/Makefile.rl78
+++ b/cpu/rl78/Makefile.rl78
@@ -127,7 +127,7 @@ else
   STRIP    = $(CROSS_COMPILE)strip
 
   ifdef WERROR
-    CFLAGSWERROR ?= -Werror -pedantic -std=c99 -Werror
+    CFLAGSWERROR ?= -Werror
   endif
   
   CFLAGSNO ?= -Wall -g $(CFLAGSWERROR)
diff --git a/cpu/stm32w108/Makefile.stm32w108 b/cpu/stm32w108/Makefile.stm32w108
index dce0b1383..a51e0dbad 100644
--- a/cpu/stm32w108/Makefile.stm32w108
+++ b/cpu/stm32w108/Makefile.stm32w108
@@ -102,12 +102,10 @@ ifeq ($(STM32W_CPUREV), CC)
   LD-EXT=-stm32w108CC
   RAM_SIZE = 2*8192
   FLASH_SIZE = 2*128*1024
- ${warning "using stm32w108CC specific ld file"}
 else ifeq ($(STM32W_CPUREV), xB)
   LD-EXT=-stm32w108xB
   RAM_SIZE = 8192
   FLASH_SIZE = 128*1024
- ${warning "using stm32w108xB specific ld file"}
 else
  ${error "Bad STM32W_CPUREV value or no STM32W_CPUREV value specified. Cpu revision should be specified. Please read cpu/stm32w108/README.txt for more details."}
 endif
diff --git a/cpu/stm32w108/dev/stm32w-radio.c b/cpu/stm32w108/dev/stm32w-radio.c
index 4488b3a93..30bfa0ff2 100644
--- a/cpu/stm32w108/dev/stm32w-radio.c
+++ b/cpu/stm32w108/dev/stm32w-radio.c
@@ -72,6 +72,7 @@
 
 #if RDC_CONF_DEBUG_LED
 #define LED_RDC RDC_CONF_DEBUG_LED
+#undef LED_ACTIVITY
 #define LED_ACTIVITY 1
 #else
 #define LED_RDC 0
@@ -117,6 +118,7 @@
 #endif  /* LED_ACTIVITY */
 
 #if RDC_CONF_HARDWARE_CSMA
+#undef MAC_RETRIES
 #define MAC_RETRIES 0
 #endif  /* RDC_CONF_HARDWARE_CSMA */
 
@@ -169,6 +171,7 @@ const RadioTransmitConfig radioTransmitConfig = {
   TRUE                          /* appendCrc; */
 };
 
+#undef MAC_RETRIES
 #define MAC_RETRIES 0
 
 /*
diff --git a/dev/cc2420/cc2420.c b/dev/cc2420/cc2420.c
index d455e02df..66a551250 100644
--- a/dev/cc2420/cc2420.c
+++ b/dev/cc2420/cc2420.c
@@ -497,7 +497,7 @@ init_security(void)
 }
 /*---------------------------------------------------------------------------*/
 static void
-set_key(uint8_t *key)
+set_key(const uint8_t *key)
 {
   GET_LOCK();
   
@@ -655,17 +655,17 @@ cc2420_transmit(unsigned short payload_len)
 #endif /* WITH_SEND_CCA */
   for(i = LOOP_20_SYMBOLS; i > 0; i--) {
     if(CC2420_SFD_IS_1) {
+#if PACKETBUF_WITH_PACKET_TYPE
       {
         rtimer_clock_t sfd_timestamp;
         sfd_timestamp = cc2420_sfd_start_time;
-#if PACKETBUF_WITH_PACKET_TYPE
         if(packetbuf_attr(PACKETBUF_ATTR_PACKET_TYPE) ==
            PACKETBUF_ATTR_PACKET_TYPE_TIMESTAMP) {
           /* Write timestamp to last two bytes of packet in TXFIFO. */
           write_ram((uint8_t *) &sfd_timestamp, CC2420RAM_TXFIFO + payload_len - 1, 2, WRITE_RAM_IN_ORDER);
         }
-#endif
       }
+#endif /* PACKETBUF_WITH_PACKET_TYPE */
 
       if(!(get_status() & BV(CC2420_TX_ACTIVE))) {
         /* SFD went high but we are not transmitting. This means that
diff --git a/dev/cc2520/cc2520.c b/dev/cc2520/cc2520.c
index b6c0e43fa..e0dad1b6a 100644
--- a/dev/cc2520/cc2520.c
+++ b/dev/cc2520/cc2520.c
@@ -217,6 +217,8 @@ flushrx(void)
   uint8_t dummy;
 
   CC2520_READ_FIFO_BYTE(dummy);
+  /* read and discard dummy to avoid "variable set but not used" warning */
+  (void)dummy;
   CC2520_STROBE(CC2520_INS_SFLUSHRX);
   CC2520_STROBE(CC2520_INS_SFLUSHRX);
 }
@@ -435,17 +437,17 @@ cc2520_transmit(unsigned short payload_len)
 #endif /* WITH_SEND_CCA */
   for(i = LOOP_20_SYMBOLS; i > 0; i--) {
     if(CC2520_SFD_IS_1) {
+#if PACKETBUF_WITH_PACKET_TYPE
       {
         rtimer_clock_t sfd_timestamp;
         sfd_timestamp = cc2520_sfd_start_time;
-#if PACKETBUF_WITH_PACKET_TYPE
         if(packetbuf_attr(PACKETBUF_ATTR_PACKET_TYPE) ==
            PACKETBUF_ATTR_PACKET_TYPE_TIMESTAMP) {
           /* Write timestamp to last two bytes of packet in TXFIFO. */
           CC2520_WRITE_RAM(&sfd_timestamp, CC2520RAM_TXFIFO + payload_len - 1, 2);
         }
-#endif
       }
+#endif /* PACKETBUF_WITH_PACKET_TYPE */
 
       if(!(status() & BV(CC2520_TX_ACTIVE))) {
         /* SFD went high but we are not transmitting. This means that
diff --git a/dev/sht11/sht11.c b/dev/sht11/sht11.c
index f6780d0a0..670d10d91 100644
--- a/dev/sht11/sht11.c
+++ b/dev/sht11/sht11.c
@@ -215,7 +215,6 @@ sht11_init(void)
      This assumes the SDA/SCL pins passed in the -arch.h file are 
      actually the same used for I2C operation, else comment out the following
   */
-  #warning SHT11: DISABLING I2C BUS
   SHT11_PxSEL &= ~(BV(SHT11_ARCH_SDA) | BV(SHT11_ARCH_SCL));
   #if defined(__MSP430_HAS_MSP430X_CPU__) || defined(__MSP430_HAS_MSP430XV2_CPU__)
     SHT11_PxREN &= ~(BV(SHT11_ARCH_SDA) | BV(SHT11_ARCH_SCL));
diff --git a/examples/cc2538dk/sniffer/project-conf.h b/examples/cc2538dk/sniffer/project-conf.h
index fd70cd9c9..7e1ac0cd6 100644
--- a/examples/cc2538dk/sniffer/project-conf.h
+++ b/examples/cc2538dk/sniffer/project-conf.h
@@ -40,6 +40,7 @@
 
 #define CC2538_RF_CONF_SNIFFER 1
 #define CC2538_RF_CONF_AUTOACK 0
+#undef NETSTACK_CONF_RDC
 #define NETSTACK_CONF_RDC      stub_rdc_driver
 
 #define UART0_CONF_BAUD_RATE   460800
diff --git a/examples/er-rest-example/resources/res-b1-sep-b2.c b/examples/er-rest-example/resources/res-b1-sep-b2.c
index be4d8f943..7dcbdd0ca 100644
--- a/examples/er-rest-example/resources/res-b1-sep-b2.c
+++ b/examples/er-rest-example/resources/res-b1-sep-b2.c
@@ -67,9 +67,9 @@ res_post_handler(void *request, void *response, uint8_t *buffer, uint16_t prefer
     coap_separate_accept(request, &request_metadata);
 
     /* Need Time for calculation now */
-    uint32_t i;
+    unsigned i;
     for(i = 0; i <= 4096; i++) {
-      printf("\r% 4u\r", i);
+      printf("\r%4u\r", i);
     }
     printf("\n");
 
diff --git a/examples/jn516x/dr1175-sensors/node.c b/examples/jn516x/dr1175-sensors/node.c
index bf1b4c89b..e30bfea3d 100644
--- a/examples/jn516x/dr1175-sensors/node.c
+++ b/examples/jn516x/dr1175-sensors/node.c
@@ -38,6 +38,7 @@
 #include "light-sensor.h"
 #include "ht-sensor.h"
 #include "leds.h"
+#include "leds-extension.h"
 
 /*---------------------------------------------------------------------------*/
 PROCESS(test_process, "Sensor test process");
diff --git a/examples/jn516x/rime/node.c b/examples/jn516x/rime/node.c
index 261fd61ad..dd8fd37b7 100644
--- a/examples/jn516x/rime/node.c
+++ b/examples/jn516x/rime/node.c
@@ -101,9 +101,10 @@ PROCESS_THREAD(unicast_test_process, ev, data)
     }
 
     if(!runicast_is_transmitting(&runicast)) {
-      linkaddr_t recv = { 0 };
       static char buffer[100] = "hello";
+      linkaddr_t recv;
 
+      memset(&recv, 0, LINKADDR_SIZE);
       packetbuf_copyfrom(buffer, sizeof(buffer));
       recv.u8[0] = RX_ADDR1;
       recv.u8[1] = RX_ADDR2;
diff --git a/examples/jn516x/rpl/border-router/border-router.c b/examples/jn516x/rpl/border-router/border-router.c
index d36130607..a260aef3b 100644
--- a/examples/jn516x/rpl/border-router/border-router.c
+++ b/examples/jn516x/rpl/border-router/border-router.c
@@ -28,6 +28,7 @@
  */
 
 #include "contiki.h"
+#include "dev/slip.h"
 #include "net/rpl/rpl.h"
 #include "tools/rpl-tools.h"
 
diff --git a/examples/jn516x/rpl/coap-dongle-node/dongle-node.c b/examples/jn516x/rpl/coap-dongle-node/dongle-node.c
index c49bc9e7c..ab5845dff 100644
--- a/examples/jn516x/rpl/coap-dongle-node/dongle-node.c
+++ b/examples/jn516x/rpl/coap-dongle-node/dongle-node.c
@@ -79,8 +79,6 @@ static void
 put_post_led_toggle_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   static int led_state = 0;
-  const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
 
   /* Given the way the LEDs are connected to the DIO ports, the LEDs are controlled via direct DIO access. */
diff --git a/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c b/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c
index f6eba5f32..f377dc3b3 100644
--- a/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c
+++ b/examples/jn516x/rpl/coap-dr1175-node/dr1175-node.c
@@ -39,8 +39,10 @@
 #include "light-sensor.h"
 #include "ht-sensor.h"
 #include "dev/leds.h"
+#include "dev/leds-extension.h"
 #include "sys/etimer.h"
 #include <stdio.h>
+#include <stdlib.h>
 
 static void event_sensors_dr1175_handler(void);
 static void get_sensors_dr1175_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset);
@@ -247,13 +249,12 @@ static void
 put_post_white_led_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content = NULL;
-  int request_content_len;
   int level;
 
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     level = atoi((const char *)request_content);
     CLIP(level, 255)
     leds_set_level(level, LEDS_WHITE);
@@ -272,7 +273,6 @@ static void
 put_post_rgb_led_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content = NULL;
-  int request_content_len;
   char *pch;
   int RGB[] = { 0, 0, 0 };
   int index = 0;
@@ -280,7 +280,7 @@ put_post_rgb_led_handler(void *request, void *response, uint8_t *buffer, uint16_
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     pch = strtok((char *)request_content, " ");
     while((pch != NULL) && (index != sizeof(RGB) / sizeof(int))) {
       /* Convert token to int */
@@ -308,11 +308,10 @@ static void
 put_post_led_d3_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP0);
   }
 }
@@ -329,11 +328,10 @@ static void
 put_post_led_d6_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP1);
   }
 }
diff --git a/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c b/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c
index 91921fed1..373922e58 100644
--- a/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c
+++ b/examples/jn516x/rpl/coap-dr1199-node/dr1199-node.c
@@ -39,6 +39,7 @@
 #include "button-sensor.h"
 #include "pot-sensor.h"
 #include <stdio.h>
+#include <stdlib.h>
 
 static char content[REST_MAX_CHUNK_SIZE];
 static int content_len = 0;
@@ -238,11 +239,10 @@ static void
 put_post_led_d1_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GREEN)
   }
 }
@@ -256,11 +256,10 @@ static void
 put_post_led_d2_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_BLUE)
   }
 }
@@ -274,11 +273,10 @@ static void
 put_post_led_d3_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_RED)
   }
 }
@@ -292,11 +290,10 @@ static void
 put_post_led_d3_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP0);
   }
 }
@@ -310,11 +307,10 @@ static void
 put_post_led_d6_1174_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     SET_LED(LEDS_GP1);
   }
 }
@@ -328,11 +324,10 @@ static void
 put_post_led_all_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
 {
   const uint8_t *request_content;
-  int request_content_len;
   unsigned int accept = -1;
   REST.get_header_accept(request, &accept);
   if(accept == -1 || accept == REST.type.TEXT_PLAIN) {
-    request_content_len = REST.get_request_payload(request, &request_content);
+    REST.get_request_payload(request, &request_content);
     if(atoi((const char *)request_content) != 0) {
       leds_on(LEDS_ALL);
     } else {
diff --git a/examples/rime/example-rucb.c b/examples/rime/example-rucb.c
index 7bf5d3b1d..e3d291c52 100644
--- a/examples/rime/example-rucb.c
+++ b/examples/rime/example-rucb.c
@@ -89,7 +89,7 @@ read_chunk(struct rucb_conn *c, int offset, char *to, int maxsize)
   bytecount += size;
 
   if(bytecount == FILESIZE) {
-    printf("Completion time %lu / %u\n", (unsigned long)clock_time() - start_time, CLOCK_SECOND);
+    printf("Completion time %lu / %u\n", (unsigned long)clock_time() - start_time, (unsigned int)CLOCK_SECOND);
     print_stats();
   }
 
diff --git a/examples/rime/example-rudolph1.c b/examples/rime/example-rudolph1.c
index ebdf8a4cd..1dcf4b0af 100644
--- a/examples/rime/example-rudolph1.c
+++ b/examples/rime/example-rudolph1.c
@@ -83,9 +83,8 @@ write_chunk(struct rudolph1_conn *c, int offset, int flag,
   }
   
   if(datalen > 0) {
-    int ret;
     cfs_seek(fd, offset, CFS_SEEK_SET);
-    ret = cfs_write(fd, data, datalen);
+    cfs_write(fd, data, datalen);
   }
 
   cfs_close(fd);
diff --git a/examples/rime/example-rudolph2.c b/examples/rime/example-rudolph2.c
index 3b97d1857..fe9afd0dc 100644
--- a/examples/rime/example-rudolph2.c
+++ b/examples/rime/example-rudolph2.c
@@ -82,9 +82,8 @@ write_chunk(struct rudolph2_conn *c, int offset, int flag,
   }
   
   if(datalen > 0) {
-    int ret;
     cfs_seek(fd, offset, CFS_SEEK_SET);
-    ret = cfs_write(fd, data, datalen);
+    cfs_write(fd, data, datalen);
     printf("+++ rudolph2 offset %d, length %d\n", offset, datalen);
   }
 
diff --git a/examples/sky-shell-webserver/sky-shell-webserver.c b/examples/sky-shell-webserver/sky-shell-webserver.c
index 57f85c368..f89e19ac1 100644
--- a/examples/sky-shell-webserver/sky-shell-webserver.c
+++ b/examples/sky-shell-webserver/sky-shell-webserver.c
@@ -40,8 +40,6 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <io.h>
-#include <signal.h>
 
 /*---------------------------------------------------------------------------*/
 PROCESS(sky_shell_process, "Sky Contiki shell w. webserver");
diff --git a/examples/z1/test-sht25.c b/examples/z1/test-sht25.c
index 25d308f3b..6137e9753 100644
--- a/examples/z1/test-sht25.c
+++ b/examples/z1/test-sht25.c
@@ -57,7 +57,7 @@ PROCESS_THREAD(test_sht25_process, ev, data)
     temperature = sht25.value(SHT25_VAL_TEMP);
     printf("Temperature %d.%d ºC\n", temperature / 100, temperature % 100);
     humidity = sht25.value(SHT25_VAL_HUM);
-    printf("Humidity %d.%d %RH\n", humidity / 100, humidity % 100);
+    printf("Humidity %d.%d %%RH\n", humidity / 100, humidity % 100);
   }
   PROCESS_END();
 }
diff --git a/platform/avr-raven/contiki-raven-main.c b/platform/avr-raven/contiki-raven-main.c
index 14c34fb4b..723bd9436 100644
--- a/platform/avr-raven/contiki-raven-main.c
+++ b/platform/avr-raven/contiki-raven-main.c
@@ -527,6 +527,7 @@ extern uip_ds6_netif_t uip_ds6_if;
       PRINTF("\n");
     }
   }
+  j = 1;
   PRINTF("\nNeighbors [%u max]\n",NBR_TABLE_MAX_NEIGHBORS);
   for(nbr = nbr_table_head(ds6_neighbors);
       nbr != NULL;
diff --git a/platform/cooja/cfs/cfs-cooja.c b/platform/cooja/cfs/cfs-cooja.c
index 40d1c3ceb..3150517b2 100644
--- a/platform/cooja/cfs/cfs-cooja.c
+++ b/platform/cooja/cfs/cfs-cooja.c
@@ -29,6 +29,7 @@
  * This file is part of the Contiki operating system.
  *
  */
+#include <stdio.h>
 #include <string.h>
 #include "lib/simEnvChange.h"
 #include "cfs/cfs.h"
diff --git a/platform/cooja/dev/eeprom.c b/platform/cooja/dev/eeprom.c
index 8a40fa3d8..026c10f26 100644
--- a/platform/cooja/dev/eeprom.c
+++ b/platform/cooja/dev/eeprom.c
@@ -28,6 +28,7 @@
  *
  */
 
+#include <string.h>
 #include "dev/eeprom.h"
 
 #include "lib/simEnvChange.h"
diff --git a/platform/cooja/dev/rs232.c b/platform/cooja/dev/rs232.c
index 51ee5b6a9..08257b555 100644
--- a/platform/cooja/dev/rs232.c
+++ b/platform/cooja/dev/rs232.c
@@ -46,6 +46,7 @@ char simSerialReceivingFlag;
 
 static int (* input_handler)(unsigned char) = NULL;
 
+void simlog_char(char c);
 /*-----------------------------------------------------------------------------------*/
 void rs232_init(void) { }
 /*-----------------------------------------------------------------------------------*/
diff --git a/platform/cooja/net/uip-driver.c b/platform/cooja/net/uip-driver.c
index 1b2fb5c4d..896550f93 100644
--- a/platform/cooja/net/uip-driver.c
+++ b/platform/cooja/net/uip-driver.c
@@ -45,7 +45,11 @@
 
 /*--------------------------------------------------------------------*/
 uint8_t
+#if NETSTACK_CONF_WITH_IPV6
+uip_driver_send(const uip_lladdr_t *addr)
+#else
 uip_driver_send(void)
+#endif
 {
   packetbuf_copyfrom(&uip_buf[UIP_LLH_LEN], uip_len);
 
diff --git a/platform/cooja/net/uip-driver.h b/platform/cooja/net/uip-driver.h
index 2a9c4b191..a711313b8 100644
--- a/platform/cooja/net/uip-driver.h
+++ b/platform/cooja/net/uip-driver.h
@@ -41,7 +41,11 @@
 
 #include "net/netstack.h"
 
+#if NETSTACK_CONF_WITH_IPV6
+uint8_t uip_driver_send(const uip_lladdr_t *);
+#else
 uint8_t uip_driver_send(void);
+#endif
 
 extern const struct network_driver uip_driver;
 
diff --git a/platform/eval-adf7xxxmb4z/contiki-main.c b/platform/eval-adf7xxxmb4z/contiki-main.c
index 0a7d3f203..d34b7e63f 100644
--- a/platform/eval-adf7xxxmb4z/contiki-main.c
+++ b/platform/eval-adf7xxxmb4z/contiki-main.c
@@ -66,7 +66,9 @@ SENSORS(&button_sensor);
 #endif
 
 static uint8_t serial_id[] = SERIAL_ID;
+#if !NETSTACK_CONF_WITH_IPV6
 static uint16_t node_id = 0x0102;
+#endif /* !NETSTACK_CONF_WITH_IPV6 */
 
 /*---------------------------------------------------------------------------*/
 static void
diff --git a/platform/exp5438/hal_lcd.c b/platform/exp5438/hal_lcd.c
index 62b36b414..66be62de9 100644
--- a/platform/exp5438/hal_lcd.c
+++ b/platform/exp5438/hal_lcd.c
@@ -35,6 +35,7 @@
  ******************************************************************************/
 
 #include "contiki-conf.h"
+#include "core/sys/cc.h"
 
 #include "hal_MSP-EXP430F5438.h"
 #include "hal_lcd_fonts.h"
@@ -116,8 +117,6 @@ void halLcdSendCommand(unsigned char Data[])
 
 void halLcdInit(void)
 {
-    volatile unsigned int i = 0;
-
     LCD_CS_RST_OUT |= LCD_CS_PIN | LCD_RESET_PIN;
     LCD_CS_RST_DIR |= LCD_CS_PIN | LCD_RESET_PIN;
 
@@ -793,7 +792,7 @@ void halLcdPrint(char String[], unsigned char TextStyle)
 
     while (String[i] != 0)                  // Stop on null character
     {
-        LookUpChar = fonts_lookup[String[i]];
+        LookUpChar = fonts_lookup[(unsigned char)String[i]];
 
         for (j = 0; j < FONT_HEIGHT; j++)
         {
diff --git a/platform/jn516x/Makefile.jn516x b/platform/jn516x/Makefile.jn516x
index bce6adbd5..50f0a393d 100644
--- a/platform/jn516x/Makefile.jn516x
+++ b/platform/jn516x/Makefile.jn516x
@@ -48,6 +48,17 @@ LDLIBS := $(subst MiniMac_JN516x, ,$(LDLIBS))
   LDLIBS += JPT_$(JENNIC_CHIP)
 endif
 
+# Enable all warnings
+CFLAGS += -Wall
+# Disable warnings that result many false positives with the Contiki core
+CFLAGS += -Wno-strict-aliasing
+CFLAGS += -Wno-cast-align
+
+# Warings as error
+ifdef WERROR
+CFLAGS += -Werror
+endif
+
 # Pass DEBUG as CFLAG
 ifeq ($(DEBUG),SW)
 CFLAGS += -DDEBUG=1
@@ -64,9 +75,6 @@ SIZE:=$(CROSS_COMPILE)-size
 OBJCOPY:=$(CROSS_COMPILE)-objcopy
 OBJDUMP:=$(CROSS_COMPILE)-objdump
 
-CFLAGS  := $(subst -Wcast-align,,$(CFLAGS))
-CFLAGS  := $(subst -Wall,,$(CFLAGS))
-
 ARCH = ccm-star.c exceptions.c rtimer-arch.c slip_uart0.c clock.c micromac-radio.c \
        mtarch.c node-id.c watchdog.c log.c ringbufindex.c slip.c sprintf.c 
 # Default uart0 for printf and slip
diff --git a/platform/jn516x/contiki-jn516x-main.c b/platform/jn516x/contiki-jn516x-main.c
index deda71b11..d7b463b12 100644
--- a/platform/jn516x/contiki-jn516x-main.c
+++ b/platform/jn516x/contiki-jn516x-main.c
@@ -232,13 +232,13 @@ set_linkaddr(void)
 {
   int i;
   linkaddr_t addr;
-  memset(&addr, 0, sizeof(linkaddr_t));
+  memset(&addr, 0, LINKADDR_SIZE);
 #if NETSTACK_CONF_WITH_IPV6
   memcpy(addr.u8, node_mac, sizeof(addr.u8));
 #else
   if(node_id == 0) {
-    for(i = 0; i < sizeof(linkaddr_t); ++i) {
-      addr.u8[i] = node_mac[7 - i];
+    for(i = 0; i < LINKADDR_SIZE; ++i) {
+      addr.u8[i] = node_mac[LINKADDR_SIZE - 1 - i];
     }
   } else {
     addr.u8[0] = node_id & 0xff;
diff --git a/platform/jn516x/dev/exceptions.c b/platform/jn516x/dev/exceptions.c
index def4e2a73..10a3bf11b 100644
--- a/platform/jn516x/dev/exceptions.c
+++ b/platform/jn516x/dev/exceptions.c
@@ -66,7 +66,6 @@
 #endif /* JENNIC_CHIP_FAMILY */
 
 #if (defined EXCEPTION_VECTORS_LOCATION_RAM)
-#pragma "EXCEPTION_VECTORS_LOCATION_RAM"
 /* RAM exception vectors are set up at run time */
 /* Addresses of exception vectors in RAM */
 #define BUS_ERROR                   *((volatile uint32 *)(0x4000000))
@@ -79,7 +78,6 @@
 #define GENERIC                     *((volatile uint32 *)(0x400001c))
 #define STACK_OVERFLOW              *((volatile uint32 *)(0x4000020))
 #elif (defined EXCEPTION_VECTORS_LOCATION_FLASH)
-#pragma "EXCEPTION_VECTORS_LOCATION_FLASH"
 /* Flash exception vectors are set up at compile time */
 #else
 #error Unknown exception vector location
diff --git a/platform/jn516x/dev/micromac-radio.c b/platform/jn516x/dev/micromac-radio.c
index 3d9d4026a..97e481eab 100644
--- a/platform/jn516x/dev/micromac-radio.c
+++ b/platform/jn516x/dev/micromac-radio.c
@@ -57,6 +57,8 @@
 #include "JPT.h"
 #include "PeripheralRegs.h"
 
+void vMMAC_SetChannelAndPower(uint8 u8Channel, int8 i8power);
+
 /* This driver configures the radio in PHY mode and does address decoding
  * and acknowledging in software. */
 
@@ -864,8 +866,6 @@ set_send_on_cca(uint8_t enable)
 static radio_result_t
 get_value(radio_param_t param, radio_value_t *value)
 {
-  int i, v;
-
   if(!value) {
     return RADIO_RESULT_INVALID_VALUE;
   }
@@ -926,8 +926,6 @@ get_value(radio_param_t param, radio_value_t *value)
 static radio_result_t
 set_value(radio_param_t param, radio_value_t value)
 {
-  int i;
-
   switch(param) {
   case RADIO_PARAM_POWER_MODE:
     if(value == RADIO_POWER_MODE_ON) {
diff --git a/platform/jn516x/dev/rtimer-arch.c b/platform/jn516x/dev/rtimer-arch.c
index f89b8a9a8..6c2e3ae8d 100644
--- a/platform/jn516x/dev/rtimer-arch.c
+++ b/platform/jn516x/dev/rtimer-arch.c
@@ -39,6 +39,7 @@
 
 #include "sys/rtimer.h"
 #include "sys/clock.h"
+#include "sys/process.h"
 #include <AppHardwareApi.h>
 #include <PeripheralRegs.h>
 #include "dev/watchdog.h"
diff --git a/platform/jn516x/dev/uart-driver.c b/platform/jn516x/dev/uart-driver.c
index 16edb7e00..922c067ab 100644
--- a/platform/jn516x/dev/uart-driver.c
+++ b/platform/jn516x/dev/uart-driver.c
@@ -44,6 +44,7 @@
 #include "contiki-conf.h"
 #include "uart-driver.h"
 #include "sys/rtimer.h"
+#include "watchdog.h"
 #include <math.h>
 #include <AppHardwareApi.h>
 
@@ -79,7 +80,9 @@ extern volatile unsigned char xonxoff_state;
 
 /***        Local Function Prototypes                                     ***/
 static void uart_driver_isr(uint32_t device_id, uint32_t item_bitmap);
+#if !UART_XONXOFF_FLOW_CTRL
 static int16_t uart_driver_get_tx_fifo_available_space(uint8_t uart_dev);
+#endif /* !UART_XONXOFF_FLOW_CTRL */
 static void uart_driver_set_baudrate(uint8_t uart_dev, uint8_t br);
 static void uart_driver_set_high_baudrate(uint8_t uart_dev, uint32_t baud_rate);
 
@@ -352,12 +355,14 @@ uart_driver_rx_handler(uint8_t uart_dev)
 /***        Local Functions                                               ***/
 /****************************************************************************/
 
+#if !UART_XONXOFF_FLOW_CTRL
 /* Returns the free space in tx fifo, i.e., how many characters we can put */
 static int16_t
 uart_driver_get_tx_fifo_available_space(uint8_t uart_dev)
 {
   return tx_fifo_size[uart_dev] - u16AHI_UartReadTxFifoLevel(uart_dev);
 }
+#endif /* !UART_XONXOFF_FLOW_CTRL */
 /* Initializes the specified UART with auto-selection of
    baudrate tuning method */
 static void
@@ -459,7 +464,7 @@ uart_driver_set_high_baudrate(uint8_t uart_dev, uint32_t baud_rate)
   DBG_vPrintf(DEBUG_UART_BUFFERED, "Config uart=%d, baud=%d\n", uart_dev,
               baud_rate);
 
-  while(abs(i32BaudError) > (int32)(baud_rate >> 4)) { /* 6.25% (100/16) error */
+  while(ABS(i32BaudError) > (int32)(baud_rate >> 4)) { /* 6.25% (100/16) error */
     if(--u8ClocksPerBit < 3) {
       DBG_vPrintf(DEBUG_UART_BUFFERED,
                   "Could not calculate UART settings for target baud!");
diff --git a/platform/jn516x/dev/uart0.h b/platform/jn516x/dev/uart0.h
index 293950c5b..6f93f7147 100644
--- a/platform/jn516x/dev/uart0.h
+++ b/platform/jn516x/dev/uart0.h
@@ -43,6 +43,7 @@
 
 #include <PeripheralRegs.h>
 #include "contiki-conf.h"
+#include "uart-driver.h"
 
 #define UART_DEFAULT_RX_BUFFER_SIZE 2047
 #if UART_XONXOFF_FLOW_CTRL
diff --git a/platform/jn516x/lib/sprintf.c b/platform/jn516x/lib/sprintf.c
index 8dbfa10a0..500951e92 100644
--- a/platform/jn516x/lib/sprintf.c
+++ b/platform/jn516x/lib/sprintf.c
@@ -227,7 +227,7 @@ int
 puts(const char *s)
 {
   char c;
-  while(c = *s++) {
+  while((c = *s++) != '\0') {
     putchar(c);
   }
   putchar('\n');
diff --git a/platform/mbxxx/contiki-main.c b/platform/mbxxx/contiki-main.c
index 8a6867d74..c383b0f61 100644
--- a/platform/mbxxx/contiki-main.c
+++ b/platform/mbxxx/contiki-main.c
@@ -76,18 +76,8 @@
 #include "net/ipv6/uip-ds6.h"
 #endif /* NETSTACK_CONF_WITH_IPV6 */
 
-#define DEBUG 1
-#if DEBUG
-#include <stdio.h>
-#define PRINTF(...) printf(__VA_ARGS__)
-#define PRINT6ADDR(addr) PRINTF(" %02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x ", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
-#define PRINTLLADDR(lladdr) PRINTF(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",lladdr.u8[0], lladdr.u8[1], lladdr.u8[2], lladdr.u8[3],lladdr.u8[4], lladdr.u8[5], lladdr.u8[6], lladdr.u8[7])
-#else
-#define PRINTF(...)
-#define PRINT6ADDR(addr)
-#define PRINTLLADDR(addr)
-#endif
-
+#define DEBUG DEBUG_PRINT
+#include "net/ip/uip-debug.h"
 
 #if NETSTACK_CONF_WITH_IPV6
 PROCINIT(&tcpip_process, &sensors_process);
@@ -183,13 +173,13 @@ main(void)
 
   set_rime_addr();
 
-  printf("%s %s, channel check rate %lu Hz\n",
+  printf("%s %s, channel check rate %d Hz\n",
          NETSTACK_MAC.name, NETSTACK_RDC.name,
          CLOCK_SECOND / (NETSTACK_RDC.channel_check_interval() == 0 ? 1:
                                   NETSTACK_RDC.channel_check_interval()));
   printf("802.15.4 PAN ID 0x%x, EUI-%d:",
       IEEE802154_CONF_PANID, UIP_CONF_LL_802154?64:16);
-  uip_debug_lladdr_print(&linkaddr_node_addr);
+  uip_debug_lladdr_print((const uip_lladdr_t *)&linkaddr_node_addr);
   printf(", radio channel %u\n", RF_CHANNEL);
 
   procinit_init();
diff --git a/platform/mbxxx/dev/temperature-sensor.c b/platform/mbxxx/dev/temperature-sensor.c
index c4418c55a..520032cb4 100644
--- a/platform/mbxxx/dev/temperature-sensor.c
+++ b/platform/mbxxx/dev/temperature-sensor.c
@@ -76,7 +76,6 @@ value(int type)
 {
   static uint16_t ADCvalue;
   static int16_t volts;
-  uint16_t scale=1;
   
   halStartAdcConversion(ADC_USER_APP, ADC_REF_INT, ADC_SOURCE(halGetADCChannelFromGPIO(TEMPERATURE_SENSOR_GPIO),ADC_MUX_VREF2), ADC_CONVERSION_TIME_US_4096);
   
diff --git a/platform/micaz/init-net.c b/platform/micaz/init-net.c
index f4289f567..271b402c8 100644
--- a/platform/micaz/init-net.c
+++ b/platform/micaz/init-net.c
@@ -50,6 +50,7 @@
 #include "net/netstack.h"
 #include "net/mac/frame802154.h"
 #include "net/linkaddr.h"
+#include "net/queuebuf.h"
 
 #include "dev/ds2401.h"
 #include "sys/node-id.h"
diff --git a/platform/micaz/node-id.c b/platform/micaz/node-id.c
index 00f1ed13a..998dd1b0d 100644
--- a/platform/micaz/node-id.c
+++ b/platform/micaz/node-id.c
@@ -33,6 +33,7 @@
 
 #include "contiki-conf.h"
 #include "sys/node-id.h"
+#include "dev/eeprom.h"
 
 unsigned short node_id = 0;
 
diff --git a/platform/native/contiki-main.c b/platform/native/contiki-main.c
index 780dce7c6..9c4639b16 100644
--- a/platform/native/contiki-main.c
+++ b/platform/native/contiki-main.c
@@ -84,7 +84,9 @@ static int select_max = 0;
 SENSORS(&pir_sensor, &vib_sensor, &button_sensor);
 
 static uint8_t serial_id[] = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08};
+#if !NETSTACK_CONF_WITH_IPV6
 static uint16_t node_id = 0x0102;
+#endif /* !NETSTACK_CONF_WITH_IPV6 */
 /*---------------------------------------------------------------------------*/
 int
 select_set_callback(int fd, const struct select_callback *callback)
diff --git a/platform/z1/dev/relay-phidget.h b/platform/z1/dev/relay-phidget.h
index 1d9247cca..580151f58 100644
--- a/platform/z1/dev/relay-phidget.h
+++ b/platform/z1/dev/relay-phidget.h
@@ -44,6 +44,6 @@ void relay_enable(uint8_t pin);
 
 void relay_on();
 void relay_off();
-int8_t relay_toogle();
+int8_t relay_toggle();
 
 #endif /* RELAY_PHIDGET_H_ */
diff --git a/regression-tests/12-rpl/code/receiver-node.c b/regression-tests/12-rpl/code/receiver-node.c
index 25e1e6758..4ba3cb148 100644
--- a/regression-tests/12-rpl/code/receiver-node.c
+++ b/regression-tests/12-rpl/code/receiver-node.c
@@ -92,7 +92,7 @@ set_global_address(void)
 /*---------------------------------------------------------------------------*/
 uint8_t should_blink = 1;
 static void
-route_callback(int event, uip_ipaddr_t *route, uip_ipaddr_t *ipaddr)
+route_callback(int event, uip_ipaddr_t *route, uip_ipaddr_t *ipaddr, int num_routes)
 {
   if(event == UIP_DS6_NOTIFICATION_DEFRT_ADD) {
     should_blink = 0;
@@ -105,11 +105,10 @@ PROCESS_THREAD(receiver_node_process, ev, data)
 {
   static struct etimer et;
   static struct uip_ds6_notification n;
-  uip_ipaddr_t *ipaddr;
 
   PROCESS_BEGIN();
 
-  ipaddr = set_global_address();
+  set_global_address();
 
   uip_ds6_notification_add(&n, route_callback);
 
diff --git a/regression-tests/21-large-rpl/code/node/project-conf.h b/regression-tests/21-large-rpl/code/node/project-conf.h
index c8cfeb645..21bf07a9b 100644
--- a/regression-tests/21-large-rpl/code/node/project-conf.h
+++ b/regression-tests/21-large-rpl/code/node/project-conf.h
@@ -2,5 +2,7 @@
 #define RESOLV_CONF_SUPPORTS_MDNS                0
 #define COOJA_MTARCH_STACKSIZE                   4096
 
+#undef UIP_CONF_MAX_ROUTES
 #define UIP_CONF_MAX_ROUTES                      3
+#undef NBR_TABLE_CONF_MAX_NEIGHBORS
 #define NBR_TABLE_CONF_MAX_NEIGHBORS             3
diff --git a/regression-tests/21-large-rpl/code/router/project-conf.h b/regression-tests/21-large-rpl/code/router/project-conf.h
index 2fa5e2977..eb0b0b1a7 100644
--- a/regression-tests/21-large-rpl/code/router/project-conf.h
+++ b/regression-tests/21-large-rpl/code/router/project-conf.h
@@ -2,7 +2,9 @@
 #define RESOLV_CONF_SUPPORTS_MDNS                0
 #define COOJA_MTARCH_STACKSIZE                   4096
 
+#undef UIP_CONF_MAX_ROUTES
 #define UIP_CONF_MAX_ROUTES                      8
+#undef NBR_TABLE_CONF_MAX_NEIGHBORS
 #define NBR_TABLE_CONF_MAX_NEIGHBORS             8
 
 /*#define RPL_CONF_DEFAULT_LIFETIME_UNIT           10
diff --git a/regression-tests/21-large-rpl/code/router/router.c b/regression-tests/21-large-rpl/code/router/router.c
index 391b5038b..844afdc1c 100644
--- a/regression-tests/21-large-rpl/code/router/router.c
+++ b/regression-tests/21-large-rpl/code/router/router.c
@@ -2,6 +2,7 @@
 #include "contiki-net.h"
 #include "ip64.h"
 #include "net/netstack.h"
+#include "net/rpl/rpl-dag-root.h"
 
 /*---------------------------------------------------------------------------*/
 PROCESS(router_node_process, "Router node");
diff --git a/regression-tests/Makefile.compile-test b/regression-tests/Makefile.compile-test
index 4ca4e3fd7..60eaf4279 100644
--- a/regression-tests/Makefile.compile-test
+++ b/regression-tests/Makefile.compile-test
@@ -41,7 +41,7 @@ define dooneexample
 @echo Building example $(3): $(1) for target $(2)
 @((cd $(EXAMPLESDIR)/$(1); \
  export STM32W_CPUREV=CC; \
- make TARGET=$(2) clean && make TARGET=$(2)) > \
+ make TARGET=$(2) clean && make TARGET=$(2) WERROR=1) > \
       $(3)-$(subst /,-,$(1))$(2).report 2>&1 && \
  (echo $(1) $(2): OK | tee $(3)-$(subst /,-,$(1))$(2).summary) || \
  (echo $(1) $(2): FAIL ಠ.ಠ | tee $(3)-$(subst /,-,$(1))$(2).summary ; \