[CMake] CMake Coverage broken with Ninja

[Gerhard Gappmeier]

Hi Brad,

thanks for that information.
It is great to see that you are working on this.

Could you already verify if this problem is also the cause for the
coverage issue?

On 09/05/2017 01:31 PM, Brad King wrote:
> On 09/02/2017 03:14 AM, Gerhard Gappmeier wrote:
>> This is quite annoying, inconsistent with Makefiles and was already
>> reported once here: https://cmake.org/Bug/print_bug_page.php?bug_id=13894
>> AFAIK this was never fixed.
> Discussion of that issue is now here:
>
>   https://gitlab.kitware.com/cmake/cmake/issues/13894
>
> We made a serious attempt to fix it, but ran into a major problem
> described here:
>
>   https://gitlab.kitware.com/cmake/cmake/issues/13894#note_233789
>
> Fixing it requires a feature in Ninja:
>
>   https://github.com/ninja-build/ninja/issues/1251
>
> I posted a proposal to their list about it but got no response:
>
>   https://groups.google.com/forum/#!topic/ninja-build/yJvs7u0n2iA
>
> ---
>
> One may use out-of-source builds to get absolute paths to the files
> in the main source tree.
>
> -Brad