Re: [Boost-build] Future development

From: Vladimir Prus (ghost_at_[hidden])
Date: 2007-10-17 10:49:09

Larry Evans wrote:

>> http://svn.boost.org/trac/boost/browser/sandbox-branches/boost-cmake/boost_1_34_0/CMakeLists.txt#L51
>> 
>> Thanks.
> Hmm..., but how does cmake know what options are valid for a *new*
> compiler, such as Doug's variadic template compiler.  Although
> usage of the CMake-env.sh attached here:
> 
> http://article.gmane.org/gmane.comp.lib.boost.build/16632
> 
> results in the correct value for CMAKE_CXX_COMPILER:FILEPATH in the
> CMakeCache.txt file, I can't imagine how Doug's layer could infer
> what the valid values for options to this compiler since it is
> new.  I've tried finding the definition of the option macro
> on CMakeLists.txt#151 without success. I looked in the
> directories:
> 
> */boost-cmake/boost_1_34_0/tools/build/CMake
> /usr/share/cmake-2.4/Modules
> 
> with the command:
> 
>   find . -name \*.cmake -exec grep -e 'option' {} \; -ls
> 
> without success.
> 
> Could some cmake expert point me in the right direction or
> tell me how cmake+Doug's layer figures out how to translate the
> uniform names (e.g. the BUILD_SINGLE_THREADED on:
> 
> http://svn.boost.org/trac/boost/browser/sandbox-branches/boost-cmake/boost_1_34_0/CMakeLists.txt#L59
> 
> ) to the compiler specific options?

I start to wonder if this thread has anything to do with Boost.Build any longer?
It seems purely a discussion of how to do something with CMake,
and therefore not a topic of this list.

Am I wrong?

- Volodya