Fix declaration of pthread_rwlock_* functions

[Ken Brown]

On 6/1/2018 6:10 AM, Corinna Vinschen wrote:
> On May 30 16:28, Ken Brown wrote:
>> The attached patch fixes the second problem reported in
>> https://cygwin.com/ml/cygwin/2018-05/msg00316.html, though I'm not sure it's
>> the right fix.
>>
>> Ken
> 
>>  From 4940baac08cd9339d771d9db90a880c61610ae4c Mon Sep 17 00:00:00 2001
>> From: Ken Brown <kbrown@cornell.edu>
>> Date: Wed, 30 May 2018 16:19:01 -0400
>> Subject: [PATCH] Declare the pthread_rwlock_* functions if __cplusplus >=
>>   201402L
>>
>> Some of these functions are used in the <shared_mutex> C++ header.
>> ---
>>   winsup/cygwin/include/pthread.h | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/winsup/cygwin/include/pthread.h b/winsup/cygwin/include/pthread.h
>> index 3dfc2bc80..fed616532 100644
>> --- a/winsup/cygwin/include/pthread.h
>> +++ b/winsup/cygwin/include/pthread.h
>> @@ -187,7 +187,7 @@ int pthread_spin_unlock (pthread_spinlock_t *);
>>   #endif
>>   
>>   /* RW Locks */
>> -#if __XSI_VISIBLE >= 500 || __POSIX_VISIBLE >= 200112
>> +#if __XSI_VISIBLE >= 500 || __POSIX_VISIBLE >= 200112 || __cplusplus >= 201402L
>>   int pthread_rwlock_destroy (pthread_rwlock_t *rwlock);
>>   int pthread_rwlock_init (pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr);
>>   int pthread_rwlock_rdlock (pthread_rwlock_t *rwlock);
>> -- 
>> 2.17.0
>>
> 
> Pushed.  Any text for winsup/cygwin/release/2.10.1, perhaps?

Attached.

Ken

-------------- next part --------------
From 661edafedeb09d6ead1d3249763dc3fc6d3de40f Mon Sep 17 00:00:00 2001
From: Ken Brown <kbrown@cornell.edu>
Date: Fri, 1 Jun 2018 08:31:43 -0400
Subject: [PATCH] Cygwin: Add pthread_rwlock_* fix to release notes

---
 winsup/cygwin/release/2.10.1 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/winsup/cygwin/release/2.10.1 b/winsup/cygwin/release/2.10.1
index c133124ae..42d9d1110 100644
--- a/winsup/cygwin/release/2.10.1
+++ b/winsup/cygwin/release/2.10.1
@@ -29,3 +29,6 @@ Bug Fixes
 - Fix a stack alignment problem which may lead to spurious crashes after
   fork.
   Addresses: https://cygwin.com/ml/cygwin-patches/2018-q2/msg00016.html
+
+- Fix a g++ compilation problem with -std=c++14 or -std=c++17.
+  Addresses: https://cygwin.com/ml/cygwin/2018-05/msg00316.html
-- 
2.17.0