[CMake] Enabling C99 in CMake

[Sean McBride]

On Wed, 22 Jun 2011 12:32:55 -0700, Todd Gamblin said:

>Is there a good cross-platform way to enable C99 in a CMake project
>right now?  You can obviously do this:
>
>	set(CMAKE_C_FLAGS "-std=c99")
>
>However, that's the GNU way to enable C99, and other compilers do it
>differently.  It would be nice if there were some flags for this set for
>you in whatever platform file you're using, e.g.:
>
>	set(CMAKE_C_FLAGS "${CMAKE_ENABLE_C99}")
>
>Or something to that effect.  Then you'd pick up -qlanglvl=c99 for xlc, -
>std=c99 for gcc, etc.
>
>Is there anything similar already in there?  I don't see anything
>grepping around in the modules or platform files.

I don't think there is.  But it would be a good idea, and I suggest you file a bug.  The VTK dashboard has warnings for exactly this reason:

<http://www.vtk.org/Bug/view.php?id=11952>

-- 
____________________________________________________________
Sean McBride, B. Eng                 sean at rogue-research.com
Rogue Research                        www.rogue-research.com 
Mac Software Developer              Montréal, Québec, Canada