Need findfile.h for something or other.

src/nethack.cc

@@ -28,6 +28,11 @@ void nethack_init() { }
 #include <time.h>
 #include <fcntl.h>
 
+#include "findfile.h"
+
+#ifdef HAVE_MALLOC_H
+# include <malloc.h>
+#endif
 #ifndef __GNUC__
 # if HAVE_ALLOCA_H
 #  include <alloca.h>