modified: ext/ncurses/ncurses_wrap.h

Fixes the following compiler error:

ext/ncurses/ncurses_wrap.c: In function ‘rbncurshelper_nonblocking_wgetch’:
ext/ncurses/ncurses_wrap.c:807:12: error: variable ‘tz’ has initializer but incomplete type
     struct timezone tz = {0,0};

Also closes #6

ext/ncurses/ncurses_wrap.h

@@ -84,6 +84,7 @@ int close(int);
 #endif
 
 #include <ruby.h>
+#include <sys/time.h>
 
 extern VALUE mNcurses;  /* module Ncurses */
 extern VALUE cWINDOW;   /* class Ncurses::WINDOW */