Fix more compiler warnings

diff -X dontdiff -urNp tunesbrowser-0.1.7-pre2/audioplayer.c tunesbrowser-dsd/audioplayer.c
--- tunesbrowser-0.1.7-pre2/audioplayer.c	2004-12-11 04:05:12.759251528 +0000
+++ tunesbrowser-dsd/audioplayer.c	2004-12-11 04:08:34.810535064 +0000
@@ -80,7 +80,7 @@ async_cmd_queue *pending_async_cmds_head
 async_cmd_queue *pending_async_cmds_tail = NULL;
 GMutex *pending_async_cmds_lock;
 
-static char *get_state_str(GstElementState state)
+UNUSED static char *get_state_str(GstElementState state)
 {
     switch (state)
     {
diff -X dontdiff -urNp tunesbrowser-0.1.7-pre2/main.c tunesbrowser-dsd/main.c
--- tunesbrowser-0.1.7-pre2/main.c	2004-12-11 04:05:12.760251376 +0000
+++ tunesbrowser-dsd/main.c	2004-12-11 04:08:44.745024792 +0000
@@ -63,11 +63,11 @@ static void install_sighandlers()
     struct sigaction sa;
     int ret;
 
-    sa.sa_handler = sighandler_sigsegv;
+    sa.sa_handler = (void*) sighandler_sigsegv;
     sa.sa_flags = SA_NOMASK | SA_SIGINFO;
     ret = sigaction(SIGSEGV, &sa, NULL);
 
-    sa.sa_handler = sighandler_sigpipe;
+    sa.sa_handler = (void*) sighandler_sigpipe;
     sa.sa_flags = SA_NOMASK | SA_SIGINFO;
     ret = sigaction(SIGPIPE, &sa, NULL);
 }
diff -X dontdiff -urNp tunesbrowser-0.1.7-pre2/tunesbrowser.h tunesbrowser-dsd/tunesbrowser.h
--- tunesbrowser-0.1.7-pre2/tunesbrowser.h	2004-12-11 04:05:12.762251072 +0000
+++ tunesbrowser-dsd/tunesbrowser.h	2004-12-11 04:09:42.843192528 +0000
@@ -52,6 +52,8 @@ void audioplayer_pause();
 void audioplayer_resume();
 void audioplayer_stop();
 
+void misc_ui_init(GladeXML *xml);
+
 
 /* misc_ui */
 enum songstatus