[cfe-dev] Building clang 5 (for coroutines)

[Kirit Sælensminde via cfe-dev]

Hi,

I've been trying to get a copy of clang 5 working so I can start to get 
to grips with the coroutines. I'm on Ubuntu Zesty for reference.

My first attempt was to dockerize the nightly packages using:

     deb http://apt.llvm.org/zesty/ llvm-toolchain-zesty main

But as far as I can tell there isn't any way to get the latest libc++ 
this way, at least no matter what I try I can't find the coroutine 
header on the image.

Next I've tried the git monorepo. I've tried to build with ninja and 
cmake using the instructions on 
<http://llvm.org/docs/GettingStarted.html>. I've tried to use the 
packaged versions  of both clang and gcc to do the build.

I've also tried to use the git repos from llvm-project on github and 
then finally the svn repositories. In all cases I get large numbers of 
link errors like the ones at the end of this message.

The latest cmake invokation I've tried is this one:

     CC=clang CXX=clang++ cmake ../svn/llvm 
-DLLVM_ENABLE_PROJECTS="llvm" -DCMAKE_BUILD_TYPE=Release

Should I be taking particular commits, or am I doing something idiotic? 
I don't develop using cmake, make or ninja, so I certainly don't know 
what to not do.


Thanks in advance,


Kirit


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