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Re: glibc test tst-thread_local1.cc fails to compile with latest GCC
- From: Steve Ellcey <sellcey at caviumnetworks dot com>
- To: Jonathan Wakely <jwakely dot gcc at gmail dot com>, "Ellcey, Steve" <Steve dot Ellcey at cavium dot com>
- Cc: "libc-alpha at sourceware dot org" <libc-alpha at sourceware dot org>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: Fri, 21 Oct 2016 09:07:32 -0700
- Subject: Re: glibc test tst-thread_local1.cc fails to compile with latest GCC
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On Fri, 2016-10-21 at 17:03 +0100, Jonathan Wakely wrote:
> > Is there some C++ standard change that I am not aware of or some
> > other header file I need to include?
> No, what probably happened is GCC didn't detect a usable Pthreads
> implementation and so doesn't define std::thread. The <thread> header
> uses this condition around the definition of std::thread:
> #if defined(_GLIBCXX_HAS_GTHREADS) &&
Yes, I finally realized I had built a GCC with '--enable-threads=no'
and was using that GCC to build GLIBC. Once I rebuilt GCC with threads
I could build GLIBC and not get this error.