[CMake] Visual Studio Warning Level

[Michael Jackson]

On Nov 22, 2008, at 8:01 AM, Vladimir Prus wrote:

> Bill Hoffman wrote:
>
>> Robert Dailey wrote:
>>> Hi,
>>>
>>> I've done some googling on how to set warning levels for visual  
>>> studio
>>> projects generated with CMake and I can't say I really enjoy the
>>> proposed solutions I've found. Literally this should be a single
>>> function call like:
>>>
>>> cmake_warning_level( 4 )
>>>
>>> I expected something simple like above, but instead I found  
>>> solutions
>>> that involved over 10 lines of code and very complex logic. This is
>>> really starting to discourage me from using CMake. I won't jump  
>>> the gun,
>>> though, and I'll assume that I just haven't found that magically  
>>> simple
>>> solution yet. Help is greatly appreciated!
>>>
>>
>> CMake does not yet have a feature to flag type of mapping layer like
>> that.  It is on the road map for the future.  It could be and is done
>> with macros or functions in projects currently.  I am pretty sure the
>> boost CMake files have macros that do this.  Anyone have a macro for
>> this to post?
>
> Boost.Build allows you to write:
>
>        bjam warnings=all
>
> and this will lead to /W4 on msvc (and to suitable options on other  
> compilers)
>
> I don't think boost's CMake setup has this specific option, and  
> generally,
> lacks most of advanced Boost.Build mechanisms necessary to portably
> specify build properties.
>
> - Volodya
>

Vladimar,
    Could you please enumerate the advanced options that are missing  
from boost's cmake setup so that I can start working on implementing  
those options. (Cross Posting to Boost-CMake as that may become the  
more appropriate place for this )

What are the equivalents in gcc to /w4, /w3, /w2, /w1? What are the  
equivalents on icc, or any other compiler? What does bjam do?


http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html

That list is pretty long...

It is easy enough to add some macros to the boost cmake files.

macro(set_warning_level warning_level)

if (MSVC)

elseif (GCC)

endif()

macro(set_warning_level warning_level)

Thanks
_________________________________________________________
Mike Jackson                  mike.jackson at bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio