[CMake] FILE(LOCK ... GUARD FILE) fails with cmake -P

[Robert Maynard]

Hi,

I have opened an issue reporting this problem:
https://gitlab.kitware.com/cmake/cmake/issues/17009

On Fri, Jun 23, 2017 at 2:23 AM, Sergey Zakharchenko
<doublef.mobile at gmail.com> wrote:
> Hello,
>
> CMake crashes on an assertion when I use FILE(LOCK ... GUARD FILE)
> inside of a file called (directly or indirectly) from cmake -P.
>
> $ cat x.cmake
> FILE(LOCK . DIRECTORY GUARD FILE)
>
> $ cat y.cmake
> INCLUDE(x.cmake)
>
> $ cmake -P  x.cmake
> Assertion failed: (!this->FileScopes.empty()), function LockFileScope,
> file /wrkdirs/usr/ports/devel/cmake/work/cmake-3.5.0/Source/cmFileLockPool.cxx,
> line 76.
> Abort trap (core dumped)
>
> $ cmake -P y.cmake
> Assertion failed: (!this->FileScopes.empty()), function LockFileScope,
> file /wrkdirs/usr/ports/devel/cmake/work/cmake-3.5.0/Source/cmFileLockPool.cxx,
> line 76.
> Abort trap (core dumped)
>
> I've tested this with different base systems and CMake versions from
> 3.4.1 to 3.7.2 with similar results (doesn't matter if I lock a file
> instead either). It's easy to work around (wrap code with function)
> but a bit inelegant. I understand there may be some limitation but
> there could at least be some sensible error message like with 'GUARD
> FUNCTION' when it's not used in a function definition...
>
> Best regards,
>
> --
> DoubleF
> --
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