require GLib 2.16

GLib 2.16 was released more than 4 years ago.  Let's remove some cruft
from the glib_compat.h header, and avoid new cruft to it.

src/conf.c

@@ -23,7 +23,6 @@
 #include "string_util.h"
 #include "tokenizer.h"
 #include "path.h"
-#include "glib_compat.h"
 #include "mpd_error.h"
 
 #include <glib.h>

src/db/simple_db_plugin.c

@@ -26,7 +26,6 @@
 #include "db_save.h"
 #include "db_lock.h"
 #include "conf.h"
-#include "glib_compat.h"
 #include "directory.h"
 
 #include <sys/types.h>

src/glib_compat.h

@@ -28,64 +28,6 @@
 
 #include <glib.h>
 
-#if !GLIB_CHECK_VERSION(2,14,0)
-
-#define g_queue_clear(q) do { g_queue_free(q); q = g_queue_new(); } while (0)
-
-static inline GSource *
-g_timeout_source_new_seconds(guint interval)
-{
-	return g_timeout_source_new(interval * 1000);
-}
-
-static inline guint
-g_timeout_add_seconds(guint interval, GSourceFunc function, gpointer data)
-{
-	return g_timeout_add(interval * 1000, function, data);
-}
-
-#endif /* !2.14 */
-
-#if !GLIB_CHECK_VERSION(2,16,0)
-
-static inline void
-g_prefix_error(G_GNUC_UNUSED GError **error_r,
-	       G_GNUC_UNUSED const gchar *format, ...)
-{
-}
-
-static inline void
-g_propagate_prefixed_error(GError **dest_r, GError *src,
-			   G_GNUC_UNUSED const gchar *format, ...)
-{
-	g_propagate_error(dest_r, src);
-}
-
-static inline char *
-g_uri_escape_string(const char *unescaped,
-		    G_GNUC_UNUSED const char *reserved_chars_allowed,
-		    G_GNUC_UNUSED gboolean allow_utf8)
-{
-	return g_strdup(unescaped);
-}
-
-#endif /* !2.16 */
-
-#if !GLIB_CHECK_VERSION(2,16,0)
-
-#include <string.h>
-
-static inline char *
-g_uri_parse_scheme(const char *uri)
-{
-	const char *end = strstr(uri, "://");
-	if (end == NULL)
-		return NULL;
-	return g_strndup(uri, end - uri);
-}
-
-#endif
-
 #if !GLIB_CHECK_VERSION(2,18,0)
 
 static inline void

src/input_init.c

@@ -22,7 +22,6 @@
 #include "input_plugin.h"
 #include "input_registry.h"
 #include "conf.h"
-#include "glib_compat.h"
 
 #include <assert.h>
 #include <string.h>

src/io_thread.c

@@ -18,7 +18,6 @@
  */
 
 #include "io_thread.h"
-#include "glib_compat.h"
 
 #include <assert.h>
 

src/listen.c

@@ -22,7 +22,6 @@
 #include "server_socket.h"
 #include "client.h"
 #include "conf.h"
-#include "glib_compat.h"
 #include "main.h"
 
 #include <string.h>

src/output/httpd_client.c

@@ -23,7 +23,6 @@
 #include "fifo_buffer.h"
 #include "page.h"
 #include "icy_server.h"
-#include "glib_compat.h"
 #include "glib_socket.h"
 
 #include <stdbool.h>

src/playlist/despotify_playlist_plugin.c

@@ -16,6 +16,7 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
+
 #include "config.h"
 #include "playlist/despotify_playlist_plugin.h"
 #include "playlist_plugin.h"
@@ -25,7 +26,6 @@
 #include "tag.h"
 #include "song.h"
 #include "input_stream.h"
-#include "glib_compat.h"
 #include "despotify_utils.h"
 
 #include <glib.h>

src/playlist/lastfm_playlist_plugin.c

@@ -25,7 +25,6 @@
 #include "uri.h"
 #include "song.h"
 #include "input_stream.h"
-#include "glib_compat.h"
 
 #include <glib.h>
 

src/playlist_list.c

@@ -35,7 +35,6 @@
 #include "uri.h"
 #include "string_util.h"
 #include "conf.h"
-#include "glib_compat.h"
 #include "mpd_error.h"
 
 #include <assert.h>

src/resolver.c

@@ -19,7 +19,6 @@
 
 #include "config.h"
 #include "resolver.h"
-#include "glib_compat.h"
 
 #ifndef G_OS_WIN32
 #include <sys/socket.h>

src/server_socket.c

@@ -27,7 +27,6 @@
 #include "socket_util.h"
 #include "resolver.h"
 #include "fd_util.h"
-#include "glib_compat.h"
 #include "glib_socket.h"
 
 #include <sys/types.h>

src/state_file.c

@@ -24,7 +24,6 @@
 #include "playlist_state.h"
 #include "volume.h"
 #include "text_file.h"
-#include "glib_compat.h"
 
 #include <glib.h>
 #include <assert.h>

src/tcp_connect.c

@@ -21,7 +21,6 @@
 #include "tcp_connect.h"
 #include "fd_util.h"
 #include "io_thread.h"
-#include "glib_compat.h"
 #include "glib_socket.h"
 
 #include <assert.h>

src/update_archive.c

@@ -24,7 +24,6 @@
 #include "directory.h"
 #include "song.h"
 #include "mapper.h"
-#include "glib_compat.h"
 #include "archive_list.h"
 #include "archive_plugin.h"
 

src/update_container.c

@@ -25,7 +25,6 @@
 #include "directory.h"
 #include "song.h"
 #include "mapper.h"
-#include "glib_compat.h"
 #include "decoder_plugin.h"
 #include "tag.h"
 #include "tag_handler.h"

src/update_io.c

@@ -21,6 +21,7 @@
 #include "update_io.h"
 #include "mapper.h"
 #include "directory.h"
+#include "glib_compat.h"
 
 #include <glib.h>
 

src/update_song.c

@@ -26,7 +26,6 @@
 #include "db_lock.h"
 #include "directory.h"
 #include "song.h"
-#include "glib_compat.h"
 #include "decoder_list.h"
 #include "decoder_plugin.h"
 

src/update_walk.c

@@ -33,7 +33,6 @@
 #include "mapper.h"
 #include "path.h"
 #include "playlist_list.h"
-#include "glib_compat.h"
 #include "conf.h"
 
 #include <glib.h>