diff --git a/daemon/cli.c b/daemon/cli.c
index 336183f56..c65ea9328 100644
--- a/daemon/cli.c
+++ b/daemon/cli.c
@@ -1887,8 +1887,8 @@ static void cli_incoming_media_list_files(str *instr, struct cli_writer *cw, con
 		if (media_player_get_file_times(name, &mtime, &atime))
 			cw->cw_printf(cw, STR_FORMAT ", loaded %lu s ago, last used %lu s ago\n",
 					STR_FMT(name),
-					(long) rtpe_now.tv_sec - mtime,
-					(long) rtpe_now.tv_sec - atime);
+					(long) (rtpe_now.tv_sec - mtime),
+					(long) (rtpe_now.tv_sec - atime));
 		str_free(name);
 	}
 }
@@ -1901,8 +1901,8 @@ static void cli_incoming_media_list_dbs(str *instr, struct cli_writer *cw, const
 		time_t atime, mtime;
 		if (media_player_get_db_times(id, &mtime, &atime))
 			cw->cw_printf(cw, "%llu, loaded %lu s ago, last used %lu s ago\n", id,
-					(long) rtpe_now.tv_sec - mtime,
-					(long) rtpe_now.tv_sec - atime);
+					(long) (rtpe_now.tv_sec - mtime),
+					(long) (rtpe_now.tv_sec - atime));
 	}
 }
 
@@ -2071,8 +2071,8 @@ static void cli_incoming_media_list_caches(str *instr, struct cli_writer *cw, co
 		time_t atime, mtime;
 		if (media_player_get_cache_times(id, &mtime, &atime))
 			cw->cw_printf(cw, "%llu, loaded %lu s ago, last used %lu s ago\n", id,
-					(long) rtpe_now.tv_sec - mtime,
-					(long) rtpe_now.tv_sec - atime);
+					(long) (rtpe_now.tv_sec - mtime),
+					(long) (rtpe_now.tv_sec - atime));
 	}
 }
 
diff --git a/daemon/codec.c b/daemon/codec.c
index cdf72e932..a4c821155 100644
--- a/daemon/codec.c
+++ b/daemon/codec.c
@@ -3753,7 +3753,7 @@ static void __dtx_send_later(struct codec_timer *ct) {
 			else if (ts_diff_us < -100000 || dtxb->discard_old_count > 3)
 				ilogs(dtx, LOG_DEBUG, "DTX timestamp reset (from %lu to %lu)", dtxb->head_ts, ts);
 			else if (ts_diff < 0 || (ts_diff == 0 && discarded_old)) {
-				ilogs(dtx, LOG_DEBUG, "Discarding old packet (TS %lu < %lu, %" PRId64 " ms old)",
+				ilogs(dtx, LOG_DEBUG, "Discarding old packet (TS %lu < %lu, %ld ms old)",
 						ts, dtxb->head_ts, -ts_diff);
 				t_queue_pop_head(&dtxb->packets);
 				dtx_packet_free(dtxp);
@@ -3765,7 +3765,7 @@ static void __dtx_send_later(struct codec_timer *ct) {
 						dtxb->head_ts, ts, ts_diff_us / 1000);
 			else if (ts_diff >= dtxb->tspp * 2) {
 				ilogs(dtx, LOG_DEBUG, "First packet in DTX buffer not ready yet (packet TS %lu, "
-						"DTX TS %lu, diff %li)",
+						"DTX TS %lu, diff %ld)",
 						ts, dtxb->head_ts, ts_diff);
 				dtxp = NULL;
 			}
diff --git a/lib/bufferpool.h b/lib/bufferpool.h
index baa56c435..de03d95fa 100644
--- a/lib/bufferpool.h
+++ b/lib/bufferpool.h
@@ -6,7 +6,7 @@
 #define BUFFERPOOL_ALIGNMENT (sizeof(void *)) // bytes
 #define BUFFERPOOL_ALIGN(x) (((x + BUFFERPOOL_ALIGNMENT - 1) / BUFFERPOOL_ALIGNMENT) * BUFFERPOOL_ALIGNMENT)
 
-#define BUFFERPOOL_SHARD_SIZE (1LL<<24) // 16 MB, must be a power of two
+#define BUFFERPOOL_SHARD_SIZE ((size_t) (1LL<<24)) // 16 MB, must be a power of two
 #define BUFFERPOOL_OVERHEAD BUFFERPOOL_ALIGN(sizeof(void *)) // storage space not available
 
 #define BUFFERPOOL_BOTTOM_MASK (BUFFERPOOL_SHARD_SIZE - 1)
diff --git a/recording-daemon/notify.c b/recording-daemon/notify.c
index dba575231..b56520f07 100644
--- a/recording-daemon/notify.c
+++ b/recording-daemon/notify.c
@@ -212,7 +212,7 @@ static void *notify_timer(void *p) {
 		gettimeofday(&now, NULL);
 		if (now.tv_sec < first->retry_time) {
 			ilog(LOG_DEBUG, "Sleeping until next scheduled HTTP notification retry in %lu seconds",
-					(unsigned long) first->retry_time - now.tv_sec);
+					(unsigned long) (first->retry_time - now.tv_sec));
 			struct timespec ts = {.tv_sec = first->retry_time, .tv_nsec = 0};
 			pthread_cond_timedwait(&timer_cond, &timer_lock, &ts);
 			continue;