diff --git a/src/gm-debug.c b/src/gm-debug.c
new file mode 100644
index 0000000..c820441
--- /dev/null
+++ b/src/gm-debug.c
@@ -0,0 +1,44 @@
+#include <time.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <glib.h>
+
+static gint debug_level = DEBUG_ALWAYS;
+
+static void
+gm_debug_msg_real(FILE *f, struct tm *timet, gchar *line, va_list args) {
+	fprintf(f, "[%02d:%02d:%02d] # ", timet->tm_hour, timet->tm_min,
+			timet->tm_sec);
+	vfprintf(f, line, args);
+	fprintf(f, "\n");
+}
+
+void
+gm_debug_msg(gint level, gchar *line, ...) {
+	struct tm *timet;
+	time_t timer;
+	va_list args;
+  
+	if (debug_level | level == debug_level) {
+		va_start(args, line);
+		timer = time(0);
+		timet = localtime(&timer);
+
+		if (level & DEBUG_ALWAYS) {
+			gm_debug_msg_real(stdout, timet, line, args);
+		}
+		
+		if (level & DEBUG_ALWAYS != level) {
+			gm_debug_msg_real(stderr, timet, line, args);
+		}
+
+		va_end(args);
+	}
+}
+
+void
+debug_set_level(gint level) {
+  debug_level = level;
+}