This a system call virtualization layer, which also acts as a
portability layer.
+ \section GRAS_todo TODO
+ Documentation related:
+ - Add an example to the \ref GRAS_msg section, at least
+ - Document examples/gras/gras_stub_generator utility and how to deal
+ with the fact that programs must have a main in RL and not in SG.
+ - Document example/gras/ping as it uses almost all of the GRAS
+ features.
+
+ Code related: too long to be written here. See the TODO file
+
@{
*/
