page0types.h Eliminate a name collision on page_t on HP-UX

innobase/include/page0types.h:
  Eliminate a name collision on page_t on HP-UX

innobase/include/page0types.h

@@ -12,6 +12,8 @@ Created 2/2/1994 Heikki Tuuri
 #include "univ.i"
 
 /* Type of the index page */
+/* The following define eliminates a name collision on HP-UX */
+#define page_t     ib_page_t
 typedef	byte		page_t;
 typedef struct page_search_struct	page_search_t;
 typedef struct page_cur_struct	page_cur_t;