[CMake] FYI - From Ninja-build mailing list - Fwd: Proposal: restat rules

[Malfettone, Kris]

Peter,
I am very interested in the ninja generator and gave it a try for one of my very large projects.  Unfortunately, I have approximately 100 targets all with the same output name(simple) but in CMake I give them all unique target names(dot separated name built from their place in the directory tree).  This works fine for Makefiles however the ninja generator seems to be adding:
        # Shortcut target for the output name.
        build simple: phony MD/MDF/Parsers/BX/BLS/v1_1/utils/simple/simple
        # Shortcut target for the target name.
        build BX.BLS.v1_1.simple: phony simple
Which then causes the following from ninja:
        ninja: WARNING: multiple rules generate simple. build will not be correct; continuing anyway

Is there a way to disable these shortcut targets?  Even changing my target names to a different format is a possibility if that is necessary.

-Kris




-----Original Message-----
From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On Behalf Of Peter Collingbourne
Sent: Thursday, September 08, 2011 2:55 PM
To: Jean-Christophe Fillion-Robin
Cc: CMake ML
Subject: Re: [CMake] FYI - From Ninja-build mailing list - Fwd: Proposal: restat rules

On Wed, Sep 07, 2011 at 11:04:42PM -0400, Jean-Christophe Fillion-Robin wrote:
> ---------- Forwarded message ----------
> From: Peter Collingbourne <peter at pcc.me.uk>
> Date: Wed, Sep 7, 2011 at 9:17 PM
> Subject: Proposal: restat rules
> To: ninja-build at googlegroups.com

FWIW, the Ninja generator I have been working on is based on work by Nicolas Despres, and has been successfully used to compile a number of large open source projects, including CMake itself, LLVM/Clang, OpenCV and Bullet Physics.

I am planning to submit the Ninja generator as a patch to CMake upstream once it has been put through more exhaustive testing and certain known issues have been resolved (my post to ninja-build being one of them).

Anyone who is interested in trying the Ninja generator with their own projects is welcome to clone my repository at:

https://github.com/pcc/CMake/tree/ninja-generator

and to report any issues encountered.  Note that the generator is currently only known to work on Linux.  To select the Ninja generator you can pass the option "-G Ninja" on the cmake command line.

Thanks,
--
Peter
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