[llvm-dev] Updating release docs and minimal tools

Sean Silva via llvm-dev llvm-dev at lists.llvm.org
Tue Jul 5 18:01:02 PDT 2016

On Mon, Jul 4, 2016 at 1:48 AM, Renato Golin via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Folks,
> I'm in the process of updating this page:
> http://llvm.org/docs/HowToReleaseLLVM.html
> which had its last review in the middle ages.
> In particular, I'm removing "dragonegg" from the list of requirements,
> changing the "build" instructions to use the test-release script (by
> pointing it to the right doc [1]), and updating the list of
> requirements.
> CMake is now required to be 3.4.3 for *all* platforms, and Ninja is
> best if 1.5+ (but not required). That's the easy part. But I'm not
> sure about the compiler version...
> Some of the versions cite gcc 3.4.5 in mingw, which I find hard to
> believe, given the recent c++11 additions. It also doesn't mention
> MSVC or Clang at all, which is a serious lack of information.
> Since I haven't been paying that much attention to the progress (and
> my minimum version is GCC 4.8), I'd like for people to chime in on
> which versions work where. The versions used to matter across arches
> because of basic support, but now, all of that is gone in GCC, and we
> only have MSVC to worry about.
> Last I remember, Linux (all arches) minimum was 4.7.2, though there
> may be some newer developments requiring 4.8.2.
> I believe Clang 3.6 was once the minimum on all arches and OSs, but
> this may also have changed.
> MSVC was once 2012 but may recently have changed to allow more C++11
> goodness, and I have no idea about Mingw.

MSVC 2013 and 2015 are the only MSVC's that are supported currently.

-- Sean Silva

> Also, is there *any* pre-GPLv3 GCC in Mac or BSD that can compile
> Clang at this day and age?
> Please, let me know and I'll update the doc to the appropriate values.
> cheers,
> --renato
> [1] http://llvm.org/docs/ReleaseProcess.html
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