[cmake-developers] [CMake 0014492]: Visual Studio 2013 breaks parallel command-line builds

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://www.cmake.org/Bug/view.php?id=14492 
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Reported By:                Nick Hutchinson
Assigned To:                
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Project:                    CMake
Issue ID:                   14492
Category:                   CMake
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2013-10-18 09:07 NZDT
Last Modified:              2013-10-18 09:07 NZDT
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Summary:                    Visual Studio 2013 breaks parallel command-line
builds
Description: 
You get the following error:
fatal error C1041: cannot open program database 'XXXX.pdb'; if multiple CL.EXE
write to the same .PDB file, please use /FS

Adding `add_compile_options(/FS)` to a CMakeLists.txt works around the issue,
but CMake should probably add it in by default. Infuriatingly, Microsoft don't
appear to have documented this flag on MSDN[1].

1: http://msdn.microsoft.com/en-us/library/vstudio/fwkeyyhe(v=vs.120).aspx

Steps to Reproduce: 
With Ninja and Visual Studio 2013 installed (I tested with the Express edition),
open a vcvarsall.bat command prompt, and configure and build any CMake project.

E.g.
> cmake -GNinja -DCMAKE_C_COMPILER=cl -DCMAKE_CXX_COMPILER=cl
[PATH_TO_SOURCE_TREE]
> ninja -j2

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Issue History 
Date Modified    Username       Field                    Change               
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2013-10-18 09:07 Nick HutchinsonNew Issue                                    
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