Right. On Mon, Jun 6, 2016 at 7:31 AM, Eric V. Smith <e...@trueblade.com> wrote: > On 06/06/2016 10:11 AM, Guido van Rossum wrote: >> On Mon, Jun 6, 2016 at 4:23 AM, Sturla Molden <sturla.mol...@gmail.com> >> wrote: >>> Guido van Rossum <gu...@python.org> wrote: >>> >>>> I'm not sure I meant that. But if I have a 3rd party extension that >>>> compiles with 3.5 headers using C89, then it should still compile with >>>> 3.6 headers using C99. Also if I compile it for 3.5 and it only uses >>>> the ABI it should still be linkable with 3.6. >>> >>> Ok, but if third-party developers shall be free to use a C89 compiler for >>> their own code, we cannot have C99 in the include files. Otherwise the >>> include files will taint the C89 purity of their source code. >> >> Well, they should use the right compiler for the Python version they >> are targeting. I'm just saying that they can't afford C99 features in >> their own code. Not even to call C/Python APIs. I think it would be >> okay if e.g. Py_INCREF was an inline function in Python 3.6, as long >> as the way you use it remains the same. > > Right. So we could use C99 features in 3.6 .h files, as long as the same > extension module, unmodified, could be compiled with 3.5 .h files with a > 3.5 approved (C89) compiler, and also with a 3.6 approved (C99) compiler. > > The headers would be different, but so would the compilers. It's the > extension module source code that must be the same in the two scenarios. > > We're not saying that an extension module must compile with a C89 > compiler under 3.6. > > Eric. > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/guido%40python.org
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