--- /dev/null
+#define CCAN_STR_DEBUG 1
+#include <ccan/str/str.h>
+
+int main(int argc, char *argv[])
+{
+#ifdef FAIL
+#if !HAVE_TYPEOF
+ #error We need typeof to check strstr.
+#endif
+#else
+ const
+#endif
+ char *ret;
+ const char *str = "hello";
+
+ ret = strstr(str, "hell");
+ return ret ? 0 : 1;
+}