On 11/25/2015 06:48 PM, Kurt Roeckx wrote: > On Wed, Nov 25, 2015 at 01:02:29PM +0100, Florian Weimer wrote: >> 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. > > Please note that we use C, not C++. But C11 has the same atomics > extentions as C++11.
C++11 support is much more widespread than C11 support. You will have trouble finding reliable support for C11 atomics with the Microsoft toolchain. > We're also currently still targetting C89/C90 (with some minor > extentions), but I think we should try to use them if the platform > supports it. It is a lot of working getting the atomics right on all supported platforms. Florian _______________________________________________ openssl-dev mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
