[openssl-dev] [openssl-team] Discussion: design issue: async and -lpthread

[Florian Weimer]

On 11/23/2015 11:08 PM, Kurt Roeckx wrote:

> I think that we currently don't do any compile / link test to
> detect features but that we instead explicitly say so for each
> platform.
> 
> Anyway, the gcc the documentation is here:
> https://gcc.gnu.org/onlinedocs/gcc/Thread-Local.html
> 
> TLS support clearly isn't supported everywhere.

The most portable approach is to switch C++11, which provides you
thread-local variables with destructors (and you also get portable
atomics).  There are simply no standards-based C solutions as long as
you have to support the Microsoft compiler under Windows.

Florian