hppa build broken

[Mike Crowe]

On Tuesday 16 July 2019 at 22:45:04 +0200, Florian Weimer wrote:
> In file included from tst-mutex5.c:27:
> tst-mutex5.c: In function ‘do_test_clock’:
> tst-mutex5.c:76:19: error: implicit declaration of function ‘pthread_mutex_clocklock’; did you mean ‘pthread_mutex_unlock’? [-Werror=implicit-function-declaration]
>    76 |     TEST_COMPARE (pthread_mutex_clocklock (&m, clockid, &ts_timeout),
>       |                   ^~~~~~~~~~~~~~~~~~~~~~~
> ../support/check.h:103:28: note: in definition of macro ‘TEST_COMPARE’
>   103 |     typedef __typeof__ (+ (left)) __left_type;                          \
>       |                            ^~~~
> 
> I think this is because the hppa copy of pthread.h wasn't updated for
> the recent nptl changes.

Proposed fix at https://sourceware.org/ml/libc-alpha/2019-07/msg00354.html

Mike.