[Bug bootstrap/17364] [3.5 Regression] c99 designators in nptl <pthreads.h> break libstdc++

["jsm at polyomino dot org dot uk" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From jsm at polyomino dot org dot uk  2004-09-09 01:50 -------
Subject: Re:  [3.5 Regression] c99 designators in nptl
 <pthreads.h> break libstdc++

On Thu, 9 Sep 2004, bangerth at dealii dot org wrote:

> That's definitely a glibc bug. They need to fix it, or we should fixinclude 
> it. Even if g++ picks this up, some people will want to compile with 
> various older -std=... standards. 

It's the specific form of macro expansion here that's particularly 
problematic, as it's not amenable to using __extension__.

To work as a static initializer it needs to be a brace-enclosed list, not 
a compound literal which would only for C be accepted in such a case as a 
concession in gnu89 mode.  But being a brace-enclosed list, there's no way 
of attaching __extension__ to it to avoid -pedantic warnings for C90 and 
C++ even if designated initializers were implemented for C++.  Of course 
yet another syntax using __extension__ could be added for both languages 
if really necessary.



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17364