--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/Wc90-c99-compat-5.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,54 @@
+/* { dg-do compile } */
+/* { dg-options "-std=gnu90 -pedantic-errors -Wno-c90-c99-compat" } */
+
+_Bool b;
+_Complex double c = __builtin_complex (0.0, 0.0);
+long long l;
+struct A { int i; char a[]; };
+struct { long int b: 2; } s;
+const const int i;
+volatile volatile int v;
+
+struct S { int a[2]; };
+extern struct S foo (void);
+
+enum { E, };
+
+void fn1 (char [*]);
+
+void
+fn2 (char x[static 4])
+{
+  int i = (int) { 1 };
+  struct A a = { .i = 3 };
+}
+
+void
+fn3 (int n)
+{
+  n = 3;
+  int i;
+}
+
+void
+fn4 (int n)
+{
+  n = 3;
+  __extension__ int i;
+}
+
+void
+fn5 (void)
+{
+  (foo ()).a[0];
+}
+
+#define F(a) a
+
+void
+fn6 (void)
+{
+  F();
+}
+
+void fn7 (int n, int a[n]);