1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Werror-implicit-function-declaration.c b/gcc/testsuite/gcc.dg/Werror-implicit-function-declaration.c
new file mode 100644
index 000000000..3261fc0d9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Werror-implicit-function-declaration.c
@@ -0,0 +1,8 @@
+/* Test the legacy option -Werror-implicit-function-declaration */
+/* { dg-do compile } */
+/* { dg-options "-std=c89 -Werror-implicit-function-declaration" } */
+/* { dg-message "some warnings being treated as errors" "" {target "*-*-*"} 0 } */
+void f(void) 
+{ 
+  puts("Hello"); /* { dg-error "implicit declaration of function" } */
+}