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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/Wredundant-decls-1.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Wredundant-decls-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/Wredundant-decls-1.c
new file mode 100644
index 000000000..c38c7b554
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/Wredundant-decls-1.c
@@ -0,0 +1,7 @@
+/* PR 16684: no redundant declaration warnings should issue the first
+ time a built-in function is declared.
+ { dg-do compile }
+ { dg-options "-Wredundant-decls" } */
+
+void *malloc (__SIZE_TYPE__); /* { dg-bogus "redundant" } */
+void *malloc (__SIZE_TYPE__); /* { dg-warning "redundant" } */