[libcxx-dev] libcxx on MSVC6.0 runtime

Louis Dionne via libcxx-dev libcxx-dev at lists.llvm.org
Fri Mar 1 14:18:23 PST 2019

> On Feb 28, 2019, at 12:20, Brendan Heinonen via libcxx-dev <libcxx-dev at lists.llvm.org> wrote:
> Hi,
> After some wrangling, I've managed to get libcxx running, linking against the MSVC 6.0 runtime library (yes... from 1998).  Right now, libcxx only supports MSVC 14.0 (2015) and above, presumably because the standard library did not have complete C99 support.  I'd like to possibly contribute these changes, but I have a couple of questions.
> 1. Would there be any interest in these patches, and would there be any chance of getting them merged since it would not be standards-compliant (due to missing C99+ functions in the runtime)?

I’d like to understand what’s the motivation for this work and what value it adds to the users of libc++. I can’t say I’m thrilled with supporting a runtime library from 1998.


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