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alpha/sys/user.h: remove asm/page.h references


newer kernel headers no longer install asm/page.h.  this causes breakage on 
alpha where its sys/user.h header pulls in asm/page.h for PAGE defines.  
attached patch fixes the issue like some other arches have fixed it.
-mike

2008-06-07  Mike Frysinger  <vapier@gentoo.org>

	* sysdeps/unix/sysv/linux/alpha/sys/user.h: Copy page.h definitions
	from the kernel header to sys/user.h and remove the #include of
	sys/user.h.

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2008-06-07  Mike Frysinger  <vapier@gentoo.org>

	* sysdeps/unix/sysv/linux/alpha/sys/user.h: Copy page.h definitions
	from the kernel header to sys/user.h and remove the #include of
	sys/user.h.

--- a/sysdeps/unix/sysv/linux/alpha/sys/user.h
+++ b/sysdeps/unix/sysv/linux/alpha/sys/user.h
@@ -23,7 +23,6 @@
    only. Don't read too much into it. Don't use it for anything other
    than gdb/strace unless you know what you are doing. */
 
-#include <asm/page.h>
 #include <asm/reg.h>
 
 struct user
@@ -41,6 +40,9 @@ struct user
   char u_comm[32];				/* user command name */
 };
 
+#define PAGE_SHIFT		13
+#define PAGE_SIZE		(1 << PAGE_SHIFT)
+#define PAGE_MASK		(~(PAGE_SIZE-1))
 #define NBPG			PAGE_SIZE
 #define UPAGES			1
 #define HOST_TEXT_START_ADDR	(u.start_code)

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