Taichi Legacy cmake returning errors

[aagrawal05]

Describe the bug
When installing taichi from the legacy branch, lots of errors when building on cmake

To Reproduce
cloning and running install.py --> https://github.com/taichi-dev/taichi/blob/legacy/install.py
or equivalently from following https://github.com/taichi-dev/taichi/blob/5ab90f03ef37701506c7034c3f1955d225b39957/docs/installation.rst

Log/Screenshots
https://pastebin.com/xqGQc4iB

Additional comments
Running on Ubuntu 22.04

[strongoier]

Hi @aagrawal05. Could you try compiling with clang? My environment is Ubuntu 20.04 & clang++-8 and I can successfully build the legacy branch.

[aagrawal05]

Ok, edited the CMakeLists.txt and built again with clang++14. Gives a different error.
https://pastebin.com/Z4Tp3t90
Should I try again with a lower version of clang?

[bobcao3]

Ok, edited the CMakeLists.txt and built again with clang++14. Gives a different error. https://pastebin.com/Z4Tp3t90 Should I try again with a lower version of clang?

Yes, maybe clang 10 or 8 if possible!

[aagrawal05]

Ok, so I've tried with clang++-11 which seems to be the lowest that 22.04 can install and gives the same error as clang++-14. I'll try building from source but is there any other way to compile this? Or alternatively could you please direct me on how to install clang++-8 or 10 on Ubuntu 22.04? Thanks in advance

[bobcao3]

Our installation document provides a clang10 tool chain that you can use

[strongoier]

Hi @aagrawal05. If you haven't succeeded yet, could you try Ubuntu 20.04 (in docker if you don't have another environment)?

[aagrawal05]

Alright, I'll try that.
Sorry for not replying, got busy with some school work.
I'll update you guys whether I managed to get it working hopefully this week.

[strongoier]

I assume the problem has been resolved so I'm closing this issue. Feel free to reopen if you meet further problems.

[Hal-Zhaodong-Yang]

Are you able to solve the issue? I'm still having the same issue even switching to clang10 on ubuntu20.04 by changing the "g++" to "clang" in the install.py.