https://bugs.gentoo.org/875239
https://bugs.debian.org/1066610
https://salsa.debian.org/debian/gnomad2/-/blob/debian/2.9.6-9/debian/patches/missing-prototypes.patch

Author: Andreas Beckmann <anbe@debian.org>
Description: fix building with -Werror=implicit-function-declaration

--- a/src/jukebox.c
+++ b/src/jukebox.c
@@ -27,6 +27,7 @@
 #include "filenaming.h"
 #include "util.h"
 #include "id3read.h"
+#include "tagfile.h"
 #include <glib.h>
 #include <glib/gprintf.h>
 
--- a/src/tagfile.c
+++ b/src/tagfile.c
@@ -20,6 +20,7 @@ Boston, MA 02111-1307, USA.
 #include "util.h"
 #include "filesystem.h"
 #include <taglib/tag_c.h>
+#include <glib/gprintf.h>
 
 /*****************************************************************************
  * EXPORTED FUNCTIONS