Le mer. 15 août 2018 à 10:57, Ray Donnelly <mingw.andr...@gmail.com> a écrit :
> Docker is unnecessary overhead here and irrelevant to the question of > which compilers to use when building conda packages (use ours or risk > binary incompatibility with the rest of the ecosystems, please do not > attempt to use e.g. CentOS6 system compilers to compile modern software > either!). Docker doesn't come with modern compilers patched to support > things like c++17 on CentOS6, they are also slow and to not mitigate > against Spectre. > Hi Ray, Don't get me wrong I certainly don't want to generate flamewar against the benefits conda gives to many users. I routinely use custom-compiled compilers in native environment (without docker nor conda though) and I did never have any issue while compiling things with CMake and those custom compilers. > Our compilation story is very good. > Again I don't doubt that, and please accept my apologies if my previous words may have been understood otherwise. > For testing the packages though (on Linux targets) I love using docker. I > can make sure our conda packages work on all the OSes we support. > Agreed too, use the right tool for the right purpose. > You can if you want use our compilers in docker but it's pretty pointless > (and routing conda package building thorough something like docker is a > requirement the community, conda forge in particular does not need). > I don't want that I was asking question about Sebastian needs and certainly not questioning the value of conda and in particular the conda compiler work you did. I know too well that having a "fully controlled compiler version" is essential when you want to support a wide range of platforms [even various linux distribution], precisely because you want to ensure that you can "at least" have say C++17 on all your supported platform/distros, or common runtime or homogeneous OpenMP support etc... > > I dream of a day when docker is seen as one great tool with lots of useful > applications instead of the solution to everything but I don't see it > coming anytime soon. > I really don't think docker is the solution to everything. Again I'm sorry if my previous statement may have been understood otherwise. Having conda/conda compiler/conda build work seamlessly working with CMake is valuable and I'm sure you'll find the proper solution for that along with Kitware as already referred issue and PR indicates. -- Eric
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