Portability changes

Docs/manual.texi:
  Comment about timestamp
include/my_pthread.h:
  Portability fix
mysys/thr_rwlock.c:
  Fix for hpux

Docs/manual.texi

@@ -28286,6 +28286,8 @@ aren't specified.
 You should have a primary key in the table.
 @item
 You should have a timestamp in all tables you want to be able to update.
+For maximum portability @code{TIMESTAMP(14)} or simple @code{TIMESTAMP}
+is recommended instead of other @code{TIMESTAMP(X)} variations.
 @item
 Only use double float fields. Access fails when comparing with single floats.
 @item

include/my_pthread.h

@@ -279,7 +279,7 @@ extern int my_pthread_create_detached;
 #endif /* defined(PTHREAD_SCOPE_GLOBAL) && !defined(PTHREAD_SCOPE_SYSTEM) */
 
 #if defined(_BSDI_VERSION) && _BSDI_VERSION < 199910
-int sigwait(const sigset_t *set, int *sig);
+int sigwait(sigset_t *set, int *sig);
 #endif
 
 #if defined(HAVE_UNIXWARE7_POSIX)
@@ -309,7 +309,7 @@ extern int my_pthread_cond_init(pthread_cond_t *mp,
 #endif
 
 #if !defined(HAVE_SIGWAIT) && !defined(HAVE_mit_thread) && !defined(HAVE_rts_threads) && !defined(sigwait) && !defined(alpha_linux_port) && !defined(HAVE_NONPOSIX_SIGWAIT) && !defined(HAVE_DEC_3_2_THREADS) && !defined(_AIX)
-int sigwait(const sigset_t *setp, int *sigp);		/* Use our implemention */
+int sigwait(sigset_t *setp, int *sigp);		/* Use our implemention */
 #endif
 #if !defined(HAVE_SIGSET) && !defined(HAVE_mit_thread) && !defined(sigset)
 #define sigset(A,B) do { struct sigaction s; sigset_t set;              \

mysys/thr_rwlock.c

@@ -65,8 +65,13 @@ int my_rwlock_init( rw_lock_t *rwp, void *arg __attribute__((unused)))
 
   pthread_mutex_init( &rwp->lock, NULL );
   pthread_condattr_init( &cond_attr );
+#ifdef HAVE_PTHREAD_CONDATTR_CREATE	/* HPUX 11.0 */
+  pthread_cond_init( &rwp->readers, cond_attr );
+  pthread_cond_init( &rwp->writers, cond_attr );
+#else
   pthread_cond_init( &rwp->readers, &cond_attr );
   pthread_cond_init( &rwp->writers, &cond_attr );
+#endif
   pthread_condattr_destroy(&cond_attr);
 
   rwp->state	= 0;