diff --git a/src/compton.c b/src/compton.c
index 8f1b197..53bb7df 100644
--- a/src/compton.c
+++ b/src/compton.c
@@ -49,15 +49,9 @@ swopti_handle_timeout(session_t *ps, struct timeval *ptv);
 static void
 cxinerama_upd_scrs(session_t *ps);
 
-static session_t *
-session_init(session_t *ps_old, int argc, char **argv);
-
 static void
 session_destroy(session_t *ps);
 
-static void
-session_run(session_t *ps);
-
 static void
 reset_enable(int __attribute__((unused)) signum);
 
@@ -115,15 +109,6 @@ vsync_opengl_mswc_deinit(session_t *ps);
 static void
 vsync_wait(session_t *ps);
 
-static void
-init_alpha_picts(session_t *ps);
-
-static bool
-init_dbe(session_t *ps);
-
-static bool
-init_overlay(session_t *ps);
-
 static void
 redir_start(session_t *ps);
 
@@ -171,12 +156,6 @@ get_root_tile(session_t *ps);
 static void
 paint_root(session_t *ps, XserverRegion reg_paint);
 
-static win *
-paint_preprocess(session_t *ps, win *list);
-
-static void
-paint_all(session_t *ps, XserverRegion region, XserverRegion region_real, win *t);
-
 static void
 add_damage(session_t *ps, XserverRegion damage);