Pending fixes for all-ABIs builds

[Joseph Myers]

I have the following patches pending review that fix various issues with 
glibc build or compile-only test shown up with all-ABI builds with my 
script (applying all 11 of these patches doesn't give completely clean 
results with any GCC version, but it does improve things a lot).

https://sourceware.org/ml/libc-alpha/2016-11/msg00127.html (Make 
check-installed-headers.sh ignore sys/sysctl.h for x32)

https://sourceware.org/ml/libc-alpha/2016-11/msg00182.html (Make Alpha 
<sys/user.h> self-contained)

https://sourceware.org/ml/libc-alpha/2016-11/msg00183.html (Make SH 
<sys/user.h> self-contained)

https://sourceware.org/ml/libc-alpha/2016-11/msg00189.html (Ignore 
-Wmaybe-uninitialized in stdlib/bug-getcontext.c)

https://sourceware.org/ml/libc-alpha/2016-11/msg00213.html (Update nios2 
localplt.data)

https://sourceware.org/ml/libc-alpha/2016-11/msg00214.html (Update alpha 
localplt.data)

https://sourceware.org/ml/libc-alpha/2016-11/msg00216.html (Add 
localplt.data for hppa)

https://sourceware.org/ml/libc-alpha/2016-11/msg00217.html (Add 
localplt.data for sh)

https://sourceware.org/ml/libc-alpha/2016-11/msg00250.html (Fix rpcgen 
buffer overrun (bug 20790))

https://sourceware.org/ml/libc-alpha/2016-11/msg00256.html (Make SH 
ucontext always match current kernels)

https://sourceware.org/ml/libc-alpha/2016-11/msg00257.html (Fix SH4 
register-dump.h for soft-float)

-- 
Joseph S. Myers
joseph@codesourcery.com