g++ -ggdb -Wall -Wextra -Werror -pedantic -std=c++11  -I/usr/local/include -I/home/myuser/Elymus   -c -o /home/myuser/Elymus/main.o /home/myuser/Elymus/main.cpp
In file included from /home/myuser/Elymus/main.cpp:6:0:
/usr/local/include/chicken/chicken.h:1035:27: error: declaration of ‘double round(double)’ has a different exception specifier
 extern double round(double);
                           ^
In file included from /usr/include/features.h:374:0,
                 from /usr/include/x86_64-linux-gnu/c++/4.9/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/4.9/bits/c++config.h:430,
                 from /usr/include/c++/4.9/cstdlib:41,
                 from /home/myuser/Elymus/main.cpp:2:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:309:1: error: from previous declaration ‘double round(double) throw ()’
 __MATHCALLX (round,, (_Mdouble_ __x), (__const__));
 ^
In file included from /home/myuser/Elymus/main.cpp:6:0:
/usr/local/include/chicken/chicken.h:1036:27: error: declaration of ‘double trunc(double)’ has a different exception specifier
 extern double trunc(double);
                           ^
In file included from /usr/include/features.h:374:0,
                 from /usr/include/x86_64-linux-gnu/c++/4.9/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/4.9/bits/c++config.h:430,
                 from /usr/include/c++/4.9/cstdlib:41,
                 from /home/myuser/Elymus/main.cpp:2:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:313:1: error: from previous declaration ‘double trunc(double) throw ()’
 __MATHCALLX (trunc,, (_Mdouble_ __x), (__const__));
 ^
<builtin>: recipe for target '/home/myuser/Elymus/main.o' failed
make: *** [/home/myuser/Elymus/main.o] Error 1