[CMake] Windows path too long

[David Cole]

I suppose the obvious "use shorter paths and names" is not possible or hard to enforce?


David


> On Sep 7, 2016, at 2:55 AM, Robert Bielik <Robert.Bielik at dirac.com> wrote:
> 
> I have a problem with a VS 2015 project, where the build state path becomes too long:
> 
> Severity    Code    Description    Project    File    Line    Suppression State
> Error    MSB3491    Could not write lines to file "processor_withAVeryVeryLongName.dir\Release\processo.92BD73FC.tlog\processor_withAVeryVeryLongName.lastbuildstate". The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters.    processor_withAVeryVeryLongName    C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.CppBuild.targets    312
> 
> The line in Microsoft.CppBuild.targets is:
> 
> <WriteLinesToFile Overwrite="true" File="$(LastBuildState)" Lines="$(ProjectStateLine);$(ProjectEvaluationFingerprint)"/>
> 
> I've set CMAKE_OBJECT_PATH_MAX to 240, but I don't think it will affect this...
> 
> Ideas ?
> 
> This is with CMake 3.5.2.
> 
> Regards
> /Robert
> 
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