+#ifdef X_NDBM
#include <ndbm.h>
#define T(t) (t*)0;
#define F(t,n) {t *y = &x.n;}
static void f()
{
T(size_t)
+T(mode_t)
T(DBM)
{
datum x;
{DBM*(*p)(const char*,int,mode_t) = dbm_open;}
{int(*p)(DBM*,datum,datum,int) = dbm_store;}
}
+#else
+static void f(){}
+#endif