Eliminate warning

diff --git a/testsuite/libffi.call/callback.c b/testsuite/libffi.call/callback.c
index 5a803ed3500f5be67402497bccfc8a0eec4560c1..ac45c62a63cc56cb8498fcde89c2ce61787b1d4a 100644 (file)
--- a/testsuite/libffi.call/callback.c
+++ b/testsuite/libffi.call/callback.c
@@ -9,7 +9,7 @@
 
 int i=5;
 
-void callback() { i++; }
+void callback(void) { i++; }
 
 typedef struct
 {