Don't prototype usage as static.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/cat.c b/src/cat.c
index a278a951f..8fe48e648 100644
--- a/src/cat.c
+++ b/src/cat.c
@@ -72,7 +72,7 @@ static int newlines2 = 0;
 /* Count of non-fatal error conditions.  */
 static int exit_status = 0;
 
-static void
+void
 usage (int status)
 {
   if (status != 0)