Index: xfce4-cpu-freq-plugin-0.0.1/panel-plugin/cpu-freq-monitor.c
===================================================================
--- xfce4-cpu-freq-plugin-0.0.1/panel-plugin/cpu-freq-monitor.c.orig
+++ xfce4-cpu-freq-plugin-0.0.1/panel-plugin/cpu-freq-monitor.c
@@ -25,6 +25,9 @@
 #include "cpu-freq-monitor.h"
 
 #include <dirent.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <glib.h>
 
 static gint
 compare_str (gconstpointer a, gconstpointer b)
@@ -49,7 +52,7 @@ file_modified (gpointer data)
 		if (!g_file_test (filePath, G_FILE_TEST_EXISTS))
 		{
 			g_free (filePath);
-			return;
+			return FALSE;
 		}
 		
 		file = fopen (filePath, "r");
@@ -67,7 +70,7 @@ file_modified (gpointer data)
 		if (!g_file_test (filePath, G_FILE_TEST_EXISTS))
 		{
 			g_free (filePath);
-			return;
+			return FALSE;
 		}
 
 		file = fopen (filePath, "r");
@@ -175,7 +178,7 @@ cpu_add (gint cpu_number, gchar* path)
 			freq = atoi (tokens[i]);
 			cpu->available_freqs = g_list_append (
 					cpu->available_freqs,
-					freq);
+					(gpointer)(intptr_t)freq);
 			i++;
 		}
 		g_strfreev (tokens);