Re: [boost] clang-win, again

On 10/26/2018 4:04 AM, degski via Boost wrote:

On Fri, 26 Oct 2018 at 01:37, Edward Diener via Boost wrote:

...

I have not attempted to build clang-8.0 under Windows. I ran into too many errors in the past attempting to build clang on Windows, which were ignored when I mentioned it on the clang developers list, to want to keep pursuing another attempt.

It has become clear [following discussions on the cfe-dev mailing list] that vc/msbuild do(es) not scale well [enough] to build Clang/LLVM. The recommended [and what more or less seems to be the only way] is to use the combo Ninja/Cmake/VC. There are some spells [see llvm web-site] you could utter that allows you to bootstrap Clang with VC and then build Clang with the [that] latest Clang.

In the past when I tried to build clang from source under Windows I used the Ninja/CMake/mingw-64/gcc chain to build. Sometimes I was successful but many times there were errors and my efforts to try to find out what was wrong on the clang user and developer mailing lists came to nothing.

When I run the preprocessor tests using b2 with my toolset clang-7.0

...

targeting VC++ I get no errors at all, so I really do not know what you are seeing or what you are doing to produce "lots of errors". I am working with the 'develop' branch of Boost Preprocessor.

As far as I read, Edward said there were 2 errors, one of which he thought, could be ignored.

Not with clang. The errors I mentioned, in anoter thread, were with vc++ 14.1 using the new vc++ preprocessor with the /experimental:preprocessor switch.

degski