[CMake] add configuration

[Tyler Roscoe]

On Fri, Mar 27, 2009 at 03:39:14PM -0600, James Bigler wrote:
> On Fri, Mar 27, 2009 at 1:50 PM, Tyler Roscoe <tyler at cryptio.net> wrote:
> > On Fri, Mar 27, 2009 at 12:42:27PM -0700, Nicolas Slythe (Intern) wrote:
> >> Is It possile to add a new configuration in visualstudio project
> >> like Release, Debug
> >
> > http://www.cmake.org/Wiki/CMake_FAQ#How_can_I_extend_the_build_modes_with_a_custom_made_one_.3F
> 
> Well, according to that wiki entry it only works for gcc:
>    "Notes: this will only work with gcc"

The rest of that sentence is "(since the flags would need to be declined
with the possible compilers)". The note is pointing out that flags like
"-Wl,--warn-unresolved-symbols,--warn-once" are specific to gcc and that
other compilers will need to be told how to warn on unresolved symbols
with different flags. 

IOW, the *strategy* laid out in the FAQ is valid for all platforms but
the sample *implementation* will only work for gcc (or compilers that
understand gcc's compiler flags).

hth,
tyler