Make MIPS <sys/user.h> self-contained [committed]

[Joseph Myers]

The check-installed-headers tests show up that the MIPS <sys/user.h>
is not self-contained, using size_t without including any header that
defines it.  This patch fixes it by including <stddef.h>, as done for
other architectures' versions of this header.

Tested for MIPS (all 24 ABIs, compilation only).  Committed.

2016-11-04  Joseph Myers  <joseph@codesourcery.com>

	* sysdeps/unix/sysv/linux/mips/sys/user.h: Include <stddef.h>.

diff --git a/sysdeps/unix/sysv/linux/mips/sys/user.h b/sysdeps/unix/sysv/linux/mips/sys/user.h
index b240438..f3547d9 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/user.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/user.h
@@ -19,6 +19,7 @@
 #define _SYS_USER_H	1
 
 #include <sgidefs.h>
+#include <stddef.h>
 
 /* The whole purpose of this file is for GDB and GDB only.  Don't read
    too much into it.  Don't use it for anything other than GDB unless

-- 
Joseph S. Myers
joseph@codesourcery.com