write.c: Make some variables static

diff --git a/write.c b/write.c
index bf5ce62..ec27f3d 100644 (file)
--- a/write.c
+++ b/write.c
@@ -60,9 +60,9 @@ struct initial_delay_task {
 };
 
 static struct write_args_info conf;
-struct stdin_task sit;
-struct check_wav_task cwt;
-struct initial_delay_task idt;
+static struct stdin_task sit;
+static struct check_wav_task cwt;
+static struct initial_delay_task idt;
 static struct writer_node_group *wng;
 
 /** length of a standard wav header */