[llvm-dev] Error in Windows build from release_40 branch

[Hans Wennborg via llvm-dev]

On Sun, Mar 5, 2017 at 12:45 AM, Stephan Mühlstrasser via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> I'm trying to do a build and install on Windows 10 with Visual Studio 2015
> Community Edition for the X86 and ARM targets, from the current release_40
> branch. While compilation completes without error, the INSTALL target fails
> with the following error:
>
> 54>  CMake Error at projects/compiler-rt/lib/builtins/cmake_install.cmake:34
> (file):
> 54>    file INSTALL cannot find
> 54>
> "E:/Users/stm/Documents/GIT/llvm-build-4.0/$(Configuration)/lib/clang/4.0.0/lib/windows/clang_rt.builtins-x86_64.lib".
> 54>  Call Stack (most recent call first):
> 54>    projects/compiler-rt/lib/cmake_install.cmake:33 (include)
> 54>    projects/compiler-rt/cmake_install.cmake:33 (include)
> 54>    projects/cmake_install.cmake:32 (include)
> 54>    cmake_install.cmake:57 (include)
>
> I found a similar issue described in this thread:
>
> http://lists.llvm.org/pipermail/llvm-dev/2014-March/070889.html
>
> I'm assuming that I made a mistake, as otherwise others would have the
> problem too, but it is unclear to me what I could be doing wrong. I'm
> building from the Git mirror, with the following repository hierarchy:
>
> llvm
> llvm\projects\compiler-rt
> llvm\tools\clang
> llvm\tools\clang\tools\extra
> llvm\tools\lld
>
> I would be grateful for any hints, thanks!

Can you share how you ran "cmake" and then how you're building?

The mailing list thread you linked to talkes about
"multi-configuration generators", such as MSBuild. Have you tried
building with ninja (https://ninja-build.org/) instead?

Cheers,
Hans