Thanks everyone. I fully understand about compilers being on PATH or
setting the CMAKE_<LANG>_COMPILER variables. However, what is really
important is the system introspection done by CMake to find the IDEs
when you select the visual studio generators. I was hoping that logic
could be shared. This would save a lot of work in setting up
environment and/or hunting down vcvars batch files.
On Wed, May 22, 2019 at 10:44 AM Michael Ellery <mellery...@gmail.com> wrote:
>
>
>
> > On May 22, 2019, at 6:58 AM, Robert Dailey <rcdailey.li...@gmail.com> wrote:
> >
> > From the command line, I want to generate Ninja build scripts that
> > utilize a specific version of MSVC compiler. Basically I'd like the
> > combination of `-G"Visual Studio 15 2017"` with regards to its ability
> > to find the C and C++ compiler on the system via registry/environment
> > variables, and `-G"Ninja"` with regards to it being the build driver
> > for that compiler.
> >
> > Is this even possible?
> > —
>
>
> In addition to the other suggestions about using a MSVC command prompt (which
> work just fine for manual builds), Here’s what I’ve done when needing to
> automate the build using powershell:
>
>
> Invoke-BatchFile "${env:ProgramFiles(x86)}\\Microsoft Visual
> Studio\\2017\\Community\\VC\\Auxiliary\\Build\\vcvarsall.bat" x86_amd64
> Get-ChildItem env:* | Sort-Object name
>
>
> …which invokes the vcvarsall batch and imports all of the environment vars
> that were set by that invocation. vcvarsall is provided exactly for the
> purpose of setting your env for building and it supports a few different arch
> arguments to select the right toolchain.
>
> HTH,
> Mike
>
>
--
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