diff --git a/panel-plugin/monitor-label.c b/panel-plugin/monitor-label.c
index d70d53f..706f06e 100644
--- a/panel-plugin/monitor-label.c
+++ b/panel-plugin/monitor-label.c
@@ -38,8 +38,6 @@ struct _XnlpMonitorLabel
 
 G_DEFINE_TYPE (XnlpMonitorLabel, xnlp_monitor_label, GTK_TYPE_LABEL)
 
-static void     xnlp_monitor_label_constructed          (GObject *object);
-
 static void     cb_label_changed                        (GObject *object,
                                                          GParamSpec *pspec,
                                                          gpointer user_data);
@@ -49,7 +47,6 @@ static void     cb_label_changed                        (GObject *object,
 static void
 xnlp_monitor_label_class_init (XnlpMonitorLabelClass *klass)
 {
-        GObjectClass *class = G_OBJECT_CLASS (klass);
         xnlp_monitor_label_parent_class = g_type_class_peek_parent (klass);
 }
 
diff --git a/panel-plugin/net.c b/panel-plugin/net.c
index fde4ab1..5ed8694 100644
--- a/panel-plugin/net.c
+++ b/panel-plugin/net.c
@@ -178,7 +178,6 @@ int get_interface_up(netdata* data)
 {
     int sockfd;
     struct ifreq ifr;
-    struct sockaddr_in *p_sa;
         
     /* if the update count is non-zero */ 
     if (data->up_update_count > 0)
@@ -194,7 +193,7 @@ int get_interface_up(netdata* data)
         return FALSE;
     }
     
-    snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", data->ifdata.if_name);
+    g_snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", data->ifdata.if_name);
     if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) != 0)
     {
         DBG("Error in ioctl(sockfd): %s", strerror(errno));
@@ -231,7 +230,7 @@ char* get_ip_address(netdata* data)
         return NULL;
     }
     
-    snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", data->ifdata.if_name);
+    g_snprintf(ifr.ifr_name, IF_NAMESIZE, "%s", data->ifdata.if_name);
     if (ioctl(sockfd, SIOCGIFADDR, &ifr) != 0)
     {
 	    if (errno != EADDRNOTAVAIL)
diff --git a/panel-plugin/netload.c b/panel-plugin/netload.c
index 36cf3c4..8113d17 100644
--- a/panel-plugin/netload.c
+++ b/panel-plugin/netload.c
@@ -181,7 +181,7 @@ static gboolean update_monitors(gpointer user_data)
         /* correct value to be from 1 ... 100 */
         global->monitor->history[i][0] = net[i];
 
-        if (global->monitor->history[i][0] < 0)
+        if ((gint) global->monitor->history[i][0] < 0)
         {
             global->monitor->history[i][0] = 0;
         }
diff --git a/panel-plugin/os.h b/panel-plugin/os.h
index 2e88f59..2db420f 100644
--- a/panel-plugin/os.h
+++ b/panel-plugin/os.h
@@ -50,7 +50,7 @@
 #  include <sys/mib.h>
 #  include <arpa/inet.h>
 #  include <net/if.h>
-#elif __APPLE__             /* Mac OS X */
+#elif defined (__APPLE__)             /* Mac OS X */
 #  include <stdio.h>
 #  include <stdlib.h>
 #  include <stdarg.h>
@@ -76,7 +76,7 @@
 #  include <net/if_media.h>
 #  include <net/if_mib.h>
 #  include <arpa/inet.h>
-#elif __DragonFly__           /* D R A G O N F L Y */
+#elif defined (__DragonFly__)           /* D R A G O N F L Y */
 #  include <stdio.h>
 #  include <stdlib.h>
 #  include <stdarg.h>
@@ -98,7 +98,7 @@
 #  include <net/if_media.h>
 #  include <net/if_mib.h>
 #  include <arpa/inet.h>
-#elif __FreeBSD__ || __FreeBSD_kernel__           /* F R E E B S D */
+#elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)           /* F R E E B S D */
 #  include <stdio.h>
 #  include <stdlib.h>
 #  include <stdarg.h>
@@ -121,7 +121,7 @@
 #  include <net/if_mib.h>
 #  include <arpa/inet.h>
 #  include <ifaddrs.h>
-#elif __NetBSD__            /* N E T B S D */
+#elif defined (__NetBSD__)            /* N E T B S D */
 #  include <stdio.h>
 #  include <sys/param.h>
 #  include <sys/sysctl.h>
@@ -146,7 +146,7 @@
 #  include <arpa/inet.h>
 #  include <net/if.h>
 #  include <ifaddrs.h>
-#elif __OpenBSD__ || __MicroBSD__           /* O P E N B S D */
+#elif defined (__OpenBSD__) || defined (__MicroBSD__)           /* O P E N B S D */
 #  include <stdio.h>
 #  include <sys/param.h>
 #  include <sys/sysctl.h>
@@ -170,7 +170,7 @@
 #  include <net/route.h>
 #  include <arpa/inet.h>
 #  include <ifaddrs.h>
-#elif __linux__             /* L I N U X */
+#elif defined (__linux__)             /* L I N U X */
 #  include <stdio.h>
 #  include <sys/param.h>
 #  include <stdlib.h>
@@ -190,7 +190,7 @@
 #  include <net/if.h>
 #  include <arpa/inet.h>
 #  include <ifaddrs.h>
-#elif __Solaris__           /* S O L A R I S */
+#elif defined (__Solaris__)           /* S O L A R I S */
 #  include <stdio.h>
 #  define _WIDEC_H
 #  include <sys/param.h>
diff --git a/panel-plugin/utils.c b/panel-plugin/utils.c
index 0f36ae6..12c5543 100644
--- a/panel-plugin/utils.c
+++ b/panel-plugin/utils.c
@@ -30,6 +30,8 @@
 #include <config.h>
 #endif
 
+#include "utils.h"
+
 #ifndef BUFSIZ
 #define BUFSIZ 512
 #endif
@@ -119,7 +121,7 @@ char* format_byte_humanreadable(char* string, int stringsize, double number, int
     
     /* get the number of integer characters */
     count = numberOfIntegerChars = ( digits > 0
-                        ? ( strstr( buffer, localeinfo->decimal_point ) - buffer )
+                        ? (unsigned int)( strstr( buffer, localeinfo->decimal_point ) - buffer )
                         :   strlen( buffer ) );