1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wshadow-2.c b/gcc/testsuite/gcc.dg/Wshadow-2.c
new file mode 100644
index 000000000..b0c051271
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wshadow-2.c
@@ -0,0 +1,10 @@
+/* Bogus warning for a double declaration of the same extern variable,
+   first at file scope, then at block scope.  PR 13129.  */
+
+/* { dg-options "-Wshadow" } */
+
+extern struct foo bar;
+void dummy()
+{
+  extern struct foo bar;  /* { dg-bogus "shadows" } */
+}