[CMake] Parallel builds

[J Decker]

On Wed, Sep 16, 2015 at 10:39 AM, Greg Marr <greg.marr at autodesk.com> wrote:
> From: J Decker [mailto:d3ck0r at gmail.com]
> Sent: Wednesday, September 16, 2015 1:30 PM
> To: Greg Marr
> Cc: Petr Bena; Cory Quammen; cmake at cmake.org; Bill Hoffman
> Subject: Re: [CMake] Parallel builds
>
>         /mp has no effect on cmake projects since each file is compiled with a
>         separate command... it relies more on msbuild /m:<num> option...
>
>         from https://msdn.microsoft.com/en-us/library/bb385193.aspx?f=255&MSPPError=-2147217396
>
>         cl /MP7 a.cpp b.cpp c.cpp d.cpp e.cpp
>
>         but cl is invoked for each source already; multiple sources aren't passed to cl.
>
> That's not true for the Visual Studio generator.  CMake generates project files, and Visual Studio builds them just like any other project file, including using the /MP flag.
>
I see yer right.
Details get foggy after years.
well that's something to add :)