[CMake] How can I add -gstabs to the compile item for Debug?

[Tyler]

On Thu, Dec 18, 2008 at 03:07:12PM -0500, Bill Hoffman wrote:
> Tyler Roscoe wrote:
> >On Fri, Dec 19, 2008 at 01:33:45AM +0800, Kermit Mei wrote:
> >>c++ -Wall -gstabs(or -g)  main.cpp hello.cpp -o main
> >>
> >>How can I use cmake to do the same thing?
> >
> >Add your -g flag to CMAKE_CXX_FLAGS or I think you can use
> >ADD_DEFINITIONS("-g").
> >
> 
> It would be better to edit the CMAKE_CXX_FLAGS_DEBUG cache variable.
> 
> add_definitions(-g) is bad for a several reasons...
> 
> It will break for compilers that do not accept -g, it will add -g to 
> release and optimized builds.

If the compiler doesn't support -g, how would using CMAKE_CXX_FLAGS_*
help?

If one wanted -g in all configurations, is ADD_DEFINITIONS then an
acceptable solution, or is there other badness there?

Thanks,
tyler