Sorry!  Accidentally checked in experimental change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84183 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/builtins.c b/test/CodeGen/builtins.c
index ac59b27..359d507 100644
--- a/test/CodeGen/builtins.c
+++ b/test/CodeGen/builtins.c
@@ -117,7 +117,7 @@
 
 
 
-char *strcat(char *a, char const *b) {}
+void strcat() {}
 
 void foo() {
  __builtin_strcat(0, 0);