1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/redecl-5.c b/gcc/testsuite/gcc.dg/redecl-5.c
new file mode 100644
index 000000000..15b1f8c8e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/redecl-5.c
@@ -0,0 +1,19 @@
+/* Test for multiple declarations and composite types.  Diagnosis of
+   incompatible implicit declaration.  */
+/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
+/* { dg-do compile } */
+/* { dg-options "-std=c89" } */
+
+void
+f (void)
+{
+  long z(); /* { dg-message "note: previous implicit declaration" } */
+}
+
+void
+g (void)
+{
+  z(); /* { dg-error "incompatible" } */
+  labs(1); /* { dg-warning "incompatible" } */
+  printf("x"); /* { dg-warning "incompatible" } */
+}