testsuite plt.c: suppress another compiler warning

diff --git a/testsuite/systemtap.base/plt.c b/testsuite/systemtap.base/plt.c
index ff45f37bea427fc4c5535c80d95c861998c9ecc4..c1147042e0ef01268ca393d4306edb13faf0846f 100644 (file)
--- a/testsuite/systemtap.base/plt.c
+++ b/testsuite/systemtap.base/plt.c
@@ -278,6 +278,8 @@ zenme ()
 #endif
 
 #if defined (NOLIBPLT) || defined (ONLY_MAIN)
+void zenme (void);
+
 int
 main ()
 {