23 files changed, 193 insertions, 163 deletions

diff --git a/src/archive_list.c b/src/archive_list.c
index 24aa060c9..e23567bdb 100644
--- a/src/archive_list.c
+++ b/src/archive_list.c
@@ -28,7 +28,7 @@
 #include <string.h>
 #include <glib.h>
 
-static const struct archive_plugin *const archive_plugins[] = {
+const struct archive_plugin *const archive_plugins[] = {
 #ifdef HAVE_BZ2
 	&bz2_archive_plugin,
 #endif
@@ -44,53 +44,32 @@ static const struct archive_plugin *const archive_plugins[] = {
 /** which plugins have been initialized successfully? */
 static bool archive_plugins_enabled[G_N_ELEMENTS(archive_plugins) - 1];
 
+#define archive_plugins_for_each_enabled(plugin) \
+	archive_plugins_for_each(plugin) \
+		if (archive_plugins_enabled[archive_plugin_iterator - archive_plugins])
+
 const struct archive_plugin *
 archive_plugin_from_suffix(const char *suffix)
 {
 	if (suffix == NULL)
 		return NULL;
 
-	for (unsigned i = 0; archive_plugins[i] != NULL; ++i) {
-		const struct archive_plugin *plugin = archive_plugins[i];
-		if (archive_plugins_enabled[i] &&
-		    plugin->suffixes != NULL &&
-		    string_array_contains(plugin->suffixes, suffix)) {
-			++i;
+	archive_plugins_for_each_enabled(plugin)
+		if (plugin->suffixes != NULL &&
+		    string_array_contains(plugin->suffixes, suffix))
 			return plugin;
-		}
-	}
+
 	return NULL;
 }
 
 const struct archive_plugin *
 archive_plugin_from_name(const char *name)
 {
-	for (unsigned i = 0; archive_plugins[i] != NULL; ++i) {
-		const struct archive_plugin *plugin = archive_plugins[i];
-		if (archive_plugins_enabled[i] &&
-		    strcmp(plugin->name, name) == 0)
+	archive_plugins_for_each_enabled(plugin)
+		if (strcmp(plugin->name, name) == 0)
 			return plugin;
-	}
-	return NULL;
-}
 
-void archive_plugin_print_all_suffixes(FILE * fp)
-{
-	const char *const*suffixes;
-
-	for (unsigned i = 0; archive_plugins[i] != NULL; ++i) {
-		const struct archive_plugin *plugin = archive_plugins[i];
-		if (!archive_plugins_enabled[i])
-			continue;
-
-		suffixes = plugin->suffixes;
-		while (suffixes && *suffixes) {
-			fprintf(fp, "%s ", *suffixes);
-			suffixes++;
-		}
-	}
-	fprintf(fp, "\n");
-	fflush(fp);
+	return NULL;
 }
 
 void archive_plugin_init_all(void)
@@ -104,10 +83,8 @@ void archive_plugin_init_all(void)
 
 void archive_plugin_deinit_all(void)
 {
-	for (unsigned i = 0; archive_plugins[i] != NULL; ++i) {
-		const struct archive_plugin *plugin = archive_plugins[i];
-		if (archive_plugins_enabled[i] && plugin->finish != NULL)
-			archive_plugins[i]->finish();
-	}
+	archive_plugins_for_each_enabled(plugin)
+		if (plugin->finish != NULL)
+			plugin->finish();
 }
 
diff --git a/src/archive_list.h b/src/archive_list.h
index 24e4063bf..f944583ed 100644
--- a/src/archive_list.h
+++ b/src/archive_list.h
@@ -20,10 +20,16 @@
 #ifndef MPD_ARCHIVE_LIST_H
 #define MPD_ARCHIVE_LIST_H
 
-#include <stdio.h>
-
 struct archive_plugin;
 
+extern const struct archive_plugin *const archive_plugins[];
+
+#define archive_plugins_for_each(plugin) \
+	for (const struct archive_plugin *plugin, \
+		*const*archive_plugin_iterator = &archive_plugins[0]; \
+		(plugin = *archive_plugin_iterator) != NULL; \
+		++archive_plugin_iterator)
+
 /* interface for using plugins */
 
 const struct archive_plugin *
@@ -32,8 +38,6 @@ archive_plugin_from_suffix(const char *suffix);
 const struct archive_plugin *
 archive_plugin_from_name(const char *name);
 
-void archive_plugin_print_all_suffixes(FILE * fp);
-
 /* this is where we "load" all the "plugins" ;-) */
 void archive_plugin_init_all(void);
 
diff --git a/src/audio_parser.c b/src/audio_parser.c
index b1be8887a..152eab5d4 100644
--- a/src/audio_parser.c
+++ b/src/audio_parser.c
@@ -26,6 +26,7 @@
 #include "audio_parser.h"
 #include "audio_format.h"
 #include "audio_check.h"
+#include "gcc.h"
 
 #include <assert.h>
 #include <string.h>
@@ -172,6 +173,11 @@ audio_format_parse(struct audio_format *dest, const char *src,
 
 	/* parse sample rate */
 
+#if GCC_CHECK_VERSION(4,7)
+	/* workaround -Wmaybe-uninitialized false positive */
+	rate = 0;
+#endif
+
 	if (!parse_sample_rate(src, mask, &rate, &src, error_r))
 		return false;
 
@@ -183,6 +189,11 @@ audio_format_parse(struct audio_format *dest, const char *src,
 
 	/* parse sample format */
 
+#if GCC_CHECK_VERSION(4,7)
+	/* workaround -Wmaybe-uninitialized false positive */
+	sample_format = SAMPLE_FORMAT_UNDEFINED;
+#endif
+
 	if (!parse_sample_format(src, mask, &sample_format, &src, error_r))
 		return false;
 
diff --git a/src/cmdline.c b/src/cmdline.c
index 8ab317730..a972daf95 100644
--- a/src/cmdline.c
+++ b/src/cmdline.c
@@ -25,15 +25,23 @@
 #include "decoder_list.h"
 #include "decoder_plugin.h"
 #include "output_list.h"
+#include "output_plugin.h"
+#include "input_registry.h"
+#include "input_plugin.h"
+#include "playlist_list.h"
+#include "playlist_plugin.h"
 #include "ls.h"
 #include "mpd_error.h"
+#include "glib_compat.h"
 
 #ifdef ENABLE_ENCODER
 #include "encoder_list.h"
+#include "encoder_plugin.h"
 #endif
 
 #ifdef ENABLE_ARCHIVE
 #include "archive_list.h"
+#include "archive_plugin.h"
 #endif
 
 #include <glib.h>
@@ -54,59 +62,70 @@ cmdline_quark(void)
 	return g_quark_from_static_string("cmdline");
 }
 
-static void
-print_all_decoders(FILE *fp)
-{
-	for (unsigned i = 0; decoder_plugins[i] != NULL; ++i) {
-		const struct decoder_plugin *plugin = decoder_plugins[i];
-		const char *const*suffixes;
-
-		fprintf(fp, "[%s]", plugin->name);
-
-		for (suffixes = plugin->suffixes;
-		     suffixes != NULL && *suffixes != NULL;
-		     ++suffixes) {
-			fprintf(fp, " %s", *suffixes);
-		}
-
-		fprintf(fp, "\n");
-	}
-}
-
 G_GNUC_NORETURN
 static void version(void)
 {
 	puts(PACKAGE " (MPD: Music Player Daemon) " VERSION " \n"
 	     "\n"
 	     "Copyright (C) 2003-2007 Warren Dukes <warren.dukes@gmail.com>\n"
-	     "Copyright (C) 2008-2011 Max Kellermann <max@duempel.org>\n"
+	     "Copyright (C) 2008-2012 Max Kellermann <max@duempel.org>\n"
 	     "This is free software; see the source for copying conditions.  There is NO\n"
 	     "warranty; not even MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
 	     "\n"
-	     "Supported decoders:\n");
+	     "Decoders plugins:");
+
+	decoder_plugins_for_each(plugin) {
+		printf(" [%s]", plugin->name);
 
-	print_all_decoders(stdout);
+		const char *const*suffixes = plugin->suffixes;
+		if (suffixes != NULL)
+			for (; *suffixes != NULL; ++suffixes)
+				printf(" %s", *suffixes);
+
+		puts("");
+	}
 
 	puts("\n"
-	     "Supported outputs:\n");
-	audio_output_plugin_print_all_types(stdout);
+	     "Output plugins:");
+	audio_output_plugins_for_each(plugin)
+		printf(" %s", plugin->name);
+	puts("");
 
 #ifdef ENABLE_ENCODER
 	puts("\n"
-	     "Supported encoders:\n");
-	encoder_plugin_print_all_types(stdout);
+	     "Encoder plugins:");
+	encoder_plugins_for_each(plugin)
+		printf(" %s", plugin->name);
+	puts("");
 #endif
 
-
 #ifdef ENABLE_ARCHIVE
 	puts("\n"
-	     "Supported archives:\n");
-	archive_plugin_init_all();
-	archive_plugin_print_all_suffixes(stdout);
+	     "Archive plugins:");
+	archive_plugins_for_each(plugin) {
+		printf(" [%s]", plugin->name);
+
+		const char *const*suffixes = plugin->suffixes;
+		if (suffixes != NULL)
+			for (; *suffixes != NULL; ++suffixes)
+				printf(" %s", *suffixes);
+
+		puts("");
+	}
 #endif
 
 	puts("\n"
-	      "Supported protocols:\n");
+	     "Input plugins:");
+	input_plugins_for_each(plugin)
+		printf(" %s", plugin->name);
+
+	puts("\n\n"
+	     "Playlist plugins:");
+	playlist_plugins_for_each(plugin)
+		printf(" %s", plugin->name);
+
+	puts("\n\n"
+	     "Protocols:");
 	print_supported_uri_schemes_to_fp(stdout);
 
 	exit(EXIT_SUCCESS);
diff --git a/src/decoder/wildmidi_decoder_plugin.c b/src/decoder/wildmidi_decoder_plugin.c
index a2224940d..2cdb30a9c 100644
--- a/src/decoder/wildmidi_decoder_plugin.c
+++ b/src/decoder/wildmidi_decoder_plugin.c
@@ -20,6 +20,7 @@
 #include "config.h"
 #include "decoder_api.h"
 #include "tag_handler.h"
+#include "glib_compat.h"
 
 #include <glib.h>
 
diff --git a/src/decoder_list.c b/src/decoder_list.c
index 2029b3e62..e9e29c691 100644
--- a/src/decoder_list.c
+++ b/src/decoder_list.c
@@ -178,12 +178,9 @@ decoder_plugin_from_mime_type(const char *mimeType, unsigned int next)
 const struct decoder_plugin *
 decoder_plugin_from_name(const char *name)
 {
-	for (unsigned i = 0; decoder_plugins[i] != NULL; ++i) {
-		const struct decoder_plugin *plugin = decoder_plugins[i];
-		if (decoder_plugins_enabled[i] &&
-		    strcmp(plugin->name, name) == 0)
+	decoder_plugins_for_each_enabled(plugin)
+		if (strcmp(plugin->name, name) == 0)
 			return plugin;
-	}
 
 	return NULL;
 }
@@ -231,10 +228,6 @@ void decoder_plugin_init_all(void)
 
 void decoder_plugin_deinit_all(void)
 {
-	for (unsigned i = 0; decoder_plugins[i] != NULL; ++i) {
-		const struct decoder_plugin *plugin = decoder_plugins[i];
-
-		if (decoder_plugins_enabled[i])
-			decoder_plugin_finish(plugin);
-	}
+	decoder_plugins_for_each_enabled(plugin)
+		decoder_plugin_finish(plugin);
 }
diff --git a/src/decoder_list.h b/src/decoder_list.h
index d259cb195..d0a6ade7e 100644
--- a/src/decoder_list.h
+++ b/src/decoder_list.h
@@ -27,6 +27,16 @@ struct decoder_plugin;
 extern const struct decoder_plugin *const decoder_plugins[];
 extern bool decoder_plugins_enabled[];
 
+#define decoder_plugins_for_each(plugin) \
+	for (const struct decoder_plugin *plugin, \
+		*const*decoder_plugin_iterator = &decoder_plugins[0]; \
+		(plugin = *decoder_plugin_iterator) != NULL; \
+		++decoder_plugin_iterator)
+
+#define decoder_plugins_for_each_enabled(plugin) \
+	decoder_plugins_for_each(plugin) \
+		if (decoder_plugins_enabled[decoder_plugin_iterator - decoder_plugins])
+
 /* interface for using plugins */
 
 /**
diff --git a/src/decoder_print.c b/src/decoder_print.c
index 72c40ac75..e14477ed8 100644
--- a/src/decoder_print.c
+++ b/src/decoder_print.c
@@ -48,7 +48,6 @@ decoder_plugin_print(struct client *client,
 void
 decoder_list_print(struct client *client)
 {
-	for (unsigned i = 0; decoder_plugins[i] != NULL; ++i)
-		if (decoder_plugins_enabled[i])
-			decoder_plugin_print(client, decoder_plugins[i]);
+	decoder_plugins_for_each_enabled(plugin)
+		decoder_plugin_print(client, plugin);
 }
diff --git a/src/encoder_list.c b/src/encoder_list.c
index d98e617b4..2326c1099 100644
--- a/src/encoder_list.c
+++ b/src/encoder_list.c
@@ -30,7 +30,7 @@ extern const struct encoder_plugin twolame_encoder_plugin;
 extern const struct encoder_plugin wave_encoder_plugin;
 extern const struct encoder_plugin flac_encoder_plugin;
 
-static const struct encoder_plugin *encoder_plugins[] = {
+const struct encoder_plugin *const encoder_plugins[] = {
 	&null_encoder_plugin,
 #ifdef ENABLE_VORBIS_ENCODER
 	&vorbis_encoder_plugin,
@@ -53,19 +53,9 @@ static const struct encoder_plugin *encoder_plugins[] = {
 const struct encoder_plugin *
 encoder_plugin_get(const char *name)
 {
-	for (unsigned i = 0; encoder_plugins[i] != NULL; ++i)
-		if (strcmp(encoder_plugins[i]->name, name) == 0)
-			return encoder_plugins[i];
+	encoder_plugins_for_each(plugin)
+		if (strcmp(plugin->name, name) == 0)
+			return plugin;
 
 	return NULL;
 }
-
-void
-encoder_plugin_print_all_types(FILE * fp)
-{
-	for (unsigned i = 0; encoder_plugins[i] != NULL; ++i)
-		fprintf(fp, "%s ", encoder_plugins[i]->name);
-
-	fprintf(fp, "\n");
-	fflush(fp);
-}
diff --git a/src/encoder_list.h b/src/encoder_list.h
index 6316d5d2f..fb1c9bf9c 100644
--- a/src/encoder_list.h
+++ b/src/encoder_list.h
@@ -20,10 +20,16 @@
 #ifndef MPD_ENCODER_LIST_H
 #define MPD_ENCODER_LIST_H
 
-#include <stdio.h>
-
 struct encoder_plugin;
 
+extern const struct encoder_plugin *const encoder_plugins[];
+
+#define encoder_plugins_for_each(plugin) \
+	for (const struct encoder_plugin *plugin, \
+		*const*encoder_plugin_iterator = &encoder_plugins[0]; \
+		(plugin = *encoder_plugin_iterator) != NULL; \
+		++encoder_plugin_iterator)
+
 /**
  * Looks up an encoder plugin by its name.
  *
@@ -34,7 +40,4 @@ struct encoder_plugin;
 const struct encoder_plugin *
 encoder_plugin_get(const char *name);
 
-void
-encoder_plugin_print_all_types(FILE * fp);
-
 #endif
diff --git a/src/glib_compat.h b/src/glib_compat.h
index 330c9e779..989bf3b81 100644
--- a/src/glib_compat.h
+++ b/src/glib_compat.h
@@ -109,4 +109,32 @@ g_source_get_time(GSource *source)
 
 #endif
 
+#if defined(G_OS_WIN32) && defined(g_file_test)
+
+/* Modern GLib on Win32 likes to use UTF-8 for file names.
+It redefines g_file_test() to be g_file_test_utf8().
+This gives incorrect results for non-ASCII files.
+Old g_file_test() is available for *binary compatibility*,
+but symbol is hidden from linker, we copy-paste its definition here */
+
+#undef g_file_test
+
+static inline gboolean
+g_file_test(const gchar *filename, GFileTest test)
+{
+	gchar *utf8_filename = g_locale_to_utf8(filename, -1, NULL, NULL, NULL);
+	gboolean retval;
+
+	if (utf8_filename == NULL)
+		return FALSE;
+
+	retval = g_file_test_utf8(utf8_filename, test);
+
+	g_free(utf8_filename);
+
+	return retval;
+}
+
+#endif
+
 #endif
diff --git a/src/input_init.c b/src/input_init.c
index cf5affb4e..e1698b64c 100644
--- a/src/input_init.c
+++ b/src/input_init.c
@@ -99,8 +99,7 @@ input_stream_global_init(GError **error_r)
 
 void input_stream_global_finish(void)
 {
-	for (unsigned i = 0; input_plugins[i] != NULL; ++i)
-		if (input_plugins_enabled[i] &&
-		    input_plugins[i]->finish != NULL)
-			input_plugins[i]->finish();
+	input_plugins_for_each_enabled(plugin)
+		if (plugin->finish != NULL)
+			plugin->finish();
 }
diff --git a/src/input_registry.h b/src/input_registry.h
index a1b057469..4f5fff8da 100644
--- a/src/input_registry.h
+++ b/src/input_registry.h
@@ -32,4 +32,14 @@ extern const struct input_plugin *const input_plugins[];
 
 extern bool input_plugins_enabled[];
 
+#define input_plugins_for_each(plugin) \
+	for (const struct input_plugin *plugin, \
+		*const*input_plugin_iterator = &input_plugins[0]; \
+		(plugin = *input_plugin_iterator) != NULL; \
+		++input_plugin_iterator)
+
+#define input_plugins_for_each_enabled(plugin) \
+	input_plugins_for_each(plugin) \
+		if (input_plugins_enabled[input_plugin_iterator - input_plugins])
+
 #endif
diff --git a/src/input_stream.c b/src/input_stream.c
index 60a1559ba..e445dca6c 100644
--- a/src/input_stream.c
+++ b/src/input_stream.c
@@ -42,13 +42,9 @@ input_stream_open(const char *url,
 	assert(mutex != NULL);
 	assert(error_r == NULL || *error_r == NULL);
 
-	for (unsigned i = 0; input_plugins[i] != NULL; ++i) {
-		const struct input_plugin *plugin = input_plugins[i];
+	input_plugins_for_each_enabled(plugin) {
 		struct input_stream *is;
 
-		if (!input_plugins_enabled[i])
-			continue;
-
 		is = plugin->open(url, mutex, cond, &error);
 		if (is != NULL) {
 			assert(is->plugin != NULL);
diff --git a/src/ls.c b/src/ls.c
index 5ed9fc579..310c2d7b6 100644
--- a/src/ls.c
+++ b/src/ls.c
@@ -63,10 +63,10 @@ void print_supported_uri_schemes_to_fp(FILE *fp)
 	const char **prefixes = remoteUrlPrefixes;
 
 #ifdef HAVE_UN
-	fprintf(fp, "file:// ");
+	fprintf(fp, " file://");
 #endif
 	while (*prefixes) {
-		fprintf(fp, "%s ", *prefixes);
+		fprintf(fp, " %s", *prefixes);
 		prefixes++;
 	}
 	fprintf(fp,"\n");
diff --git a/src/output_init.c b/src/output_init.c
index 3b8a7a9f1..d2c86bfa2 100644
--- a/src/output_init.c
+++ b/src/output_init.c
@@ -49,12 +49,9 @@
 static const struct audio_output_plugin *
 audio_output_detect(GError **error)
 {
-	const struct audio_output_plugin *plugin;
-	unsigned i;
-
 	g_warning("Attempt to detect audio output device");
 
-	audio_output_plugins_for_each(plugin, i) {
+	audio_output_plugins_for_each(plugin) {
 		if (plugin->test_default_device == NULL)
 			continue;
 
diff --git a/src/output_list.c b/src/output_list.c
index ffb0698f1..835c02bba 100644
--- a/src/output_list.c
+++ b/src/output_list.c
@@ -39,7 +39,7 @@
 #include "output/solaris_output_plugin.h"
 #include "output/winmm_output_plugin.h"
 
-const struct audio_output_plugin *audio_output_plugins[] = {
+const struct audio_output_plugin *const audio_output_plugins[] = {
 #ifdef HAVE_SHOUT
 	&shout_output_plugin,
 #endif
@@ -98,24 +98,9 @@ const struct audio_output_plugin *audio_output_plugins[] = {
 const struct audio_output_plugin *
 audio_output_plugin_get(const char *name)
 {
-	unsigned int i;
-	const struct audio_output_plugin *plugin;
-
-	audio_output_plugins_for_each(plugin, i)
+	audio_output_plugins_for_each(plugin)
 		if (strcmp(plugin->name, name) == 0)
 			return plugin;
 
 	return NULL;
 }
-
-void audio_output_plugin_print_all_types(FILE * fp)
-{
-	unsigned i;
-	const struct audio_output_plugin *plugin;
-
-	audio_output_plugins_for_each(plugin, i)
-		fprintf(fp, "%s ", plugin->name);
-
-	fprintf(fp, "\n");
-	fflush(fp);
-}
diff --git a/src/output_list.h b/src/output_list.h
index 3deb31c00..185ada716 100644
--- a/src/output_list.h
+++ b/src/output_list.h
@@ -20,16 +20,14 @@
 #ifndef MPD_OUTPUT_LIST_H
 #define MPD_OUTPUT_LIST_H
 
-#include <stdio.h>
-
-extern const struct audio_output_plugin *audio_output_plugins[];
+extern const struct audio_output_plugin *const audio_output_plugins[];
 
 const struct audio_output_plugin *
 audio_output_plugin_get(const char *name);
 
-void audio_output_plugin_print_all_types(FILE * fp);
-
-#define audio_output_plugins_for_each(plugin, i) \
-	for (i = 0; (plugin = audio_output_plugins[i]) != NULL; ++i)
+#define audio_output_plugins_for_each(plugin) \
+	for (const struct audio_output_plugin *plugin, \
+		*const*output_plugin_iterator = &audio_output_plugins[0]; \
+		(plugin = *output_plugin_iterator) != NULL; ++output_plugin_iterator)
 
 #endif
diff --git a/src/output_thread.c b/src/output_thread.c
index 02c315af9..4eef2ccdd 100644
--- a/src/output_thread.c
+++ b/src/output_thread.c
@@ -30,6 +30,7 @@
 #include "filter/replay_gain_filter_plugin.h"
 #include "mpd_error.h"
 #include "notify.h"
+#include "gcc.h"
 
 #include <glib.h>
 
@@ -441,6 +442,10 @@ ao_play_chunk(struct audio_output *ao, const struct music_chunk *chunk)
 	}
 
 	size_t size;
+#if GCC_CHECK_VERSION(4,7)
+	/* workaround -Wmaybe-uninitialized false positive */
+	size = 0;
+#endif
 	const char *data = ao_filter_chunk(ao, chunk, &size);
 	if (data == NULL) {
 		ao_close(ao, false);
diff --git a/src/playlist_list.c b/src/playlist_list.c
index 64f03d46d..3d4edb9e1 100644
--- a/src/playlist_list.c
+++ b/src/playlist_list.c
@@ -42,7 +42,7 @@
 #include <string.h>
 #include <stdio.h>
 
-static const struct playlist_plugin *const playlist_plugins[] = {
+const struct playlist_plugin *const playlist_plugins[] = {
 	&extm3u_playlist_plugin,
 	&m3u_playlist_plugin,
 	&xspf_playlist_plugin,
@@ -66,6 +66,10 @@ static const struct playlist_plugin *const playlist_plugins[] = {
 /** which plugins have been initialized successfully? */
 static bool playlist_plugins_enabled[G_N_ELEMENTS(playlist_plugins)];
 
+#define playlist_plugins_for_each_enabled(plugin) \
+	playlist_plugins_for_each(plugin) \
+		if (playlist_plugins_enabled[playlist_plugin_iterator - playlist_plugins])
+
 /**
  * Find the "playlist" configuration block for the specified plugin.
  *
@@ -113,9 +117,8 @@ playlist_list_global_init(void)
 void
 playlist_list_global_finish(void)
 {
-	for (unsigned i = 0; playlist_plugins[i] != NULL; ++i)
-		if (playlist_plugins_enabled[i])
-			playlist_plugin_finish(playlist_plugins[i]);
+	playlist_plugins_for_each_enabled(plugin)
+		playlist_plugin_finish(plugin);
 }
 
 static struct playlist_provider *
@@ -209,11 +212,8 @@ playlist_list_open_stream_mime2(struct input_stream *is, const char *mime)
 	assert(is != NULL);
 	assert(mime != NULL);
 
-	for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
-		const struct playlist_plugin *plugin = playlist_plugins[i];
-
-		if (playlist_plugins_enabled[i] &&
-		    plugin->open_stream != NULL &&
+	playlist_plugins_for_each_enabled(plugin) {
+		if (plugin->open_stream != NULL &&
 		    plugin->mime_types != NULL &&
 		    string_array_contains(plugin->mime_types, mime)) {
 			/* rewind the stream, so each plugin gets a
@@ -257,11 +257,8 @@ playlist_list_open_stream_suffix(struct input_stream *is, const char *suffix)
 	assert(is != NULL);
 	assert(suffix != NULL);
 
-	for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
-		const struct playlist_plugin *plugin = playlist_plugins[i];
-
-		if (playlist_plugins_enabled[i] &&
-		    plugin->open_stream != NULL &&
+	playlist_plugins_for_each_enabled(plugin) {
+		if (plugin->open_stream != NULL &&
 		    plugin->suffixes != NULL &&
 		    string_array_contains(plugin->suffixes, suffix)) {
 			/* rewind the stream, so each plugin gets a
@@ -306,10 +303,8 @@ playlist_suffix_supported(const char *suffix)
 {
 	assert(suffix != NULL);
 
-	for (unsigned i = 0; playlist_plugins[i] != NULL; ++i) {
-		const struct playlist_plugin *plugin = playlist_plugins[i];
-
-		if (playlist_plugins_enabled[i] && plugin->suffixes != NULL &&
+	playlist_plugins_for_each_enabled(plugin) {
+		if (plugin->suffixes != NULL &&
 		    string_array_contains(plugin->suffixes, suffix))
 			return true;
 	}
diff --git a/src/playlist_list.h b/src/playlist_list.h
index 4a2485303..c3967d5ae 100644
--- a/src/playlist_list.h
+++ b/src/playlist_list.h
@@ -27,6 +27,14 @@
 struct playlist_provider;
 struct input_stream;
 
+extern const struct playlist_plugin *const playlist_plugins[];
+
+#define playlist_plugins_for_each(plugin) \
+	for (const struct playlist_plugin *plugin, \
+		*const*playlist_plugin_iterator = &playlist_plugins[0]; \
+		(plugin = *playlist_plugin_iterator) != NULL; \
+		++playlist_plugin_iterator)
+
 /**
  * Initializes all playlist plugins.
  */
diff --git a/src/playlist_save.c b/src/playlist_save.c
index 6571e286c..122eca332 100644
--- a/src/playlist_save.c
+++ b/src/playlist_save.c
@@ -28,6 +28,7 @@
 #include "uri.h"
 #include "database.h"
 #include "idle.h"
+#include "glib_compat.h"
 
 #include <glib.h>
 
diff --git a/src/update_walk.c b/src/update_walk.c
index 9ca9115bd..3ee35b2aa 100644
--- a/src/update_walk.c
+++ b/src/update_walk.c
@@ -33,6 +33,7 @@
 #include "decoder_list.h"
 #include "decoder_plugin.h"
 #include "playlist_list.h"
+#include "glib_compat.h"
 #include "conf.h"
 #include "tag.h"
 #include "tag_handler.h"