I think it’s more a matter of using new features in C11 that preclude compilation on older platforms, rather than the use of a C11 compiler itself.
-- -Todd Short // tsh...@akamai.com<mailto:tsh...@akamai.com> // "One if by land, two if by sea, three if by the Internet." On Jul 4, 2017, at 1:34 PM, Kurt Roeckx <k...@roeckx.be<mailto:k...@roeckx.be>> wrote: On Tue, Jul 04, 2017 at 05:42:42PM +0200, Richard Levitte wrote: In message <2f548b68de1c47dfaa6a3b0107080...@usma1ex-dag1mb1.msg.corp.akamai.com<mailto:2f548b68de1c47dfaa6a3b0107080...@usma1ex-dag1mb1.msg.corp.akamai.com>> on Tue, 4 Jul 2017 15:05:06 +0000, "Salz, Rich via openssl-dev" <openssl-dev@openssl.org<mailto:openssl-dev@openssl.org>> said: openssl-dev> > beldmit> What is the minimal version of the compiler to build openssl? openssl-dev> > beldmit> Is it still required C89 compatibility or C99 standard can be used? openssl-dev> > beldmit> openssl-dev> > beldmit> Unfortunately, I did not find these requirements in documentation. openssl-dev> > openssl-dev> > At the beginning of INSTALL, you will find a set of requirements. On of them openssl-dev> > is "an ANSI C compiler". openssl-dev> openssl-dev> That doesn't answer the question :) Which version of ANSI C? Ah, you're right, "ANSI C" is a bit of a loose target depending on who you ask. As far as I know, we refer to C89/C90 (they are essentially the same for our intents and purposes). openssl-dev> I believe C89 is written down somewhere. C89 is written nowhere in the source at least, nor is C90. We should probably clarify that. Speculating a bit, it's probably safe to say that C95 compiler is fine as well. C99, not so much, there's too much risk that we start excluding some platforms if we start using its features. Anyway, I don't think it's safe to upgrade our minimum expectations now. OpenSSL 1.2.0 would be a good time for such re-evaluations. I think the minimum requirement is C89 + support for "long long". A newer version shouldn't be a problem, it should work with a compiler that defaults to C11 for instance. Kurt -- openssl-dev mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-dev
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