diff --git a/cfg-common.h b/cfg-common.h
index f57e376157..be8ffadba5 100644
--- a/cfg-common.h
+++ b/cfg-common.h
@@ -183,7 +183,6 @@ const m_option_t pvropts_conf[]={
 extern const m_config_t dvbin_opts_conf[];
 extern const m_option_t lavfdopts_conf[];
 
-extern int rtspStreamOverTCP;
 extern int rtsp_transport_tcp;
 extern int rtsp_transport_http;
 extern int rtsp_transport_sctp;
diff --git a/cfg-mplayer.h b/cfg-mplayer.h
index 489062336e..dc1cb63ac9 100644
--- a/cfg-mplayer.h
+++ b/cfg-mplayer.h
@@ -32,17 +32,11 @@
 
 extern char *fb_mode_cfgfile;
 extern char *fb_mode_name;
-extern char *dfb_params;
 
 extern char *lirc_configfile;
 
 /* only used at startup (setting these values from configfile) */
 extern char *vo_geometry;
-
-extern char *ao_outputfilename;
-extern int ao_pcm_waveheader;
-
-extern int fs_layer;
 extern int stop_xscreensaver;
 
 extern int menu_startup;
diff --git a/libvo/mga_common.c b/libvo/mga_common.c
index 26df56d5b4..fa6b52e0d6 100644
--- a/libvo/mga_common.c
+++ b/libvo/mga_common.c
@@ -67,9 +67,6 @@ static void draw_osd(void)
 }
 
 
-//static void
-//write_slice_g200(uint8_t *y,uint8_t *cr, uint8_t *cb,uint32_t slice_num)
-
 static void
 draw_slice_g200(uint8_t *image[], int stride[], int width,int height,int x,int y)
 {
diff --git a/libvo/vo_dxr3.c b/libvo/vo_dxr3.c
index a4e012894e..240d369f83 100644
--- a/libvo/vo_dxr3.c
+++ b/libvo/vo_dxr3.c
@@ -552,7 +552,6 @@ static void draw_alpha(int x, int y, int w, int h, unsigned char* src, unsigned
 #endif
 }
 
-extern int vo_osd_changed_flag;
 extern mp_osd_obj_t* vo_osd_list;
 
 static void draw_osd(void)