[llvm-dev] Managing two versions of LLVM on the computer?

[Alex Denisov via llvm-dev]

Hi Osman,

Not sure if I understood correctly, what is the role of Git in this scenario?
For my use cases I just copy a number of precompiled versions[1] of LLVM and put them under /opt/llvm/. Here is how it looks like on my machine:

> ls /opt/llvm/
3.8.0  3.9.0  4.0.0  5.0.0  6.0.0  7.0.0  8.0.0  monorepo

Then ,when I need to use a different version to compile something I usually override compiler using environment variables, e.g.:

> export CC=/opt/llvm/3.9.0/bin/clang
> export CXX=/opt/llvm/3.9.0/bin/clang++
> cmake or whatever else is needed

I hope it helps.

> On 19. May 2019, at 02:23, Osman Zakir via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> I wanted to try installing both LLVM 8 and 9 on the same machine and managing them with a version control system, but is this possible?  And if so, would Git be a good version control system to use?  How do LLVM developers use it for that (if they do)?
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