Errore Salmon g++

[root@localhost salmon]# cmake -DFETCH_BOOST=TRUE
CMake Warning:
  No source or binary directory provided.  Both will be assumed to be the
  same as the current working directory, but note that this warning will
  become a fatal error in future CMake releases.


CC: gcc
CC version:
version: 0.14.1
CMake Error at CMakeLists.txt:177 (message):
  Salmon requires g++ 5.2 or greater.


-- Configuring incomplete, errors occurred!
See also "/home/genomica/DATA/Software/salmon/CMakeFiles/CMakeOutput.log".
See also "/home/genomica/DATA/Software/salmon/CMakeFiles/CMakeError.log".
[root@localhost salmon]#