[CMake] TRY_COMPILE without linking...

[Theodore Papadopoulo]

In porting a library (blitz) from autoconf to cmake, I have the 
sub-project of testing C++ compiler features.
The autoconf way was to create some C++ files and test that they are 
compiling (and just compiling not linking).

TRY_COMPILE (in the variant that creates automatically the CMake 
project) seems to oblige me to link the code.
Many of the tests (taken from autoconf) do not include a main(), some 
the tests fail. Obviously, I can create a main,
but I wondered if there was an easy way to avoid the linking phase 
(without having to create my own CMake project
for all those files).

     Thank's in advance,

         Theo.