[CMake] XCode generator hangs when writing build config.

[Axel Roebel]

On 05/01/2012 01:56, David Cole wrote:
>> Wow. Nice, quick work.
>> >
>> > Thanks for the patch. I'll get it applied and pushed to our 'next'
>> > branch so this can get into the next release...
>> >
>> >
>> > Thanks,
>> > David
> Hmmm. I've downloaded the source from SourceForge, but do not
> reproduce the problem here simply by running cmake to
> configure/generate. You must be setting the flags explicitly somehow?
> (By hand, or with a script?)

You may need to checkout from sourceforge CVS, the tar ball is not that
recent.

> Can you tell me exactly how to reproduce the problem so that I can
> verify the fix works?

You may need to force your compiler to be gcc (clang or llvm)
I don't have the latter so I don't know whether they pass or not.
You see the logic of setting the compiler flags in
EASDIF_SDIF/SDIF/cmModules/SET_COMPILER_FLAGS.cmake
here

...
IF (GCCVERSIONMAJ EQUAL 4)
        ADD_BT_COMPILER_FLAGS(RELEASE -finline-limit=5000 --param
large-function-insns=5000 --param large-function-growth=500 --param
inline-unit-growth=100)

So only gcc will trigger the problem

As far as I remember i did not have this machinery when I published the
last tar ball.

Please find attached a minimal example project (source tt.cc and
CMakeLists.txt) that trigger the problem.


Best
Axel


> The ExtractFlags method was modified in this commit to remove
> conflicting -g flags when multiple -g flags occur...
>
> http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=cb22afc0
> 
> It's relatively recent and first appeared in 2.8.6 -- I want to make
> sure that whatever fix goes in now also honors the intent of that
> commit, which fixed http://public.kitware.com/Bug/view.php?id=12377
> 
> 
> Thanks,
> David
> 


-- 
Axel Roebel
Head of the Analysis/Synthesis Team, IRCAM
Phone: ++33-1-4478 4845 | Fax: ++33-1-4478 1540
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