“initializer_list” file not found
http://stackoverflow.com/questions/19493671/initializer-list-no-such-file-or-directory
Since you are using GCC-4.8 and your problem is that you don't have the C++11 features try to add -std=c++11 to your compilation line.
I saw that you are using CMake, then this post may help you (you can replace -std=c++0x by -std=c++11 or -std=gnu++11).
Example:
# It appends the -std=c++11 option to CMAKE_CXX_FLAGS
SET
(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") # for gcc >= 4.7