Fix building with GCC 10 / CFLAGS=-fno-common

src/audioscrobbler.c

@@ -39,6 +39,9 @@
 #include "queue.h"
 #include "scmpc.h"
 
+static struct as_conn_t as_conn;
+gchar *buffer;
+
 static void as_parse_error(char *response);
 static gboolean as_submit(void);
 static gushort build_querystring(gchar **qs);

src/audioscrobbler.h

@@ -36,19 +36,19 @@
 /**
  * Last.fm connection data
  */
-struct {
+struct as_conn_t {
   gchar *session_id;
   gint64 last_auth;
   gint64 last_fail;
   connection_status status;
   CURL *handle;
   struct curl_slist *headers;
-} as_conn;
+};
 
 /**
  * cURL data buffer
  */
-gchar *buffer;
+extern gchar *buffer;
 
 /**
  * Initialize cURL

src/mpd.c

@@ -31,6 +31,8 @@
 #include "queue.h"
 #include "scmpc.h"
 
+struct mpd_t mpd;
+
 static void mpd_update(void);
 static void mpd_schedule_check(void);
 static gboolean mpd_parse(GIOChannel *source, GIOCondition condition,

src/mpd.h

@@ -31,7 +31,7 @@
 /**
  * MPD connection data
  */
-struct {
+struct mpd_t {
   struct mpd_connection *conn;
   struct mpd_status *status;
   struct mpd_song *song;
@@ -41,7 +41,9 @@ struct {
   guint idle_source;
   guint check_source;
   guint reconnect_source;
-} mpd;
+};
+
+extern struct mpd_t mpd;
 
 /**
  * Connect to MPD

src/preferences.c

@@ -35,6 +35,8 @@
 #include "preferences.h"
 #include "scmpc.h"
 
+struct prefs_t prefs;
+
 static gint cf_log_level(cfg_t *cfg, cfg_opt_t *opt, const gchar *value,
                          void *result);
 static gint cf_validate_num(cfg_t *cfg, cfg_opt_t *opt);

src/preferences.h

@@ -31,7 +31,7 @@
 /**
  * scmpc settings
  */
-struct {
+struct prefs_t {
   gchar *mpd_hostname;
   gushort mpd_port;
   gushort mpd_timeout;
@@ -47,7 +47,9 @@ struct {
   gchar *cache_file;
   guint queue_length;
   guint cache_interval;
-} prefs;
+};
+
+extern struct prefs_t prefs;
 
 /**
  * Initialize preferences