xnox@diamond:~$ g++ -std=c++14 -dM -E -x c++ - < /dev/null | grep linux #define __linux__ 1 #define __gnu_linux__ 1
xnox@diamond:~$ g++ -std=gnu++14 -dM -E -x c++ - < /dev/null | grep linux #define __linux 1 #define __linux__ 1 #define __gnu_linux__ 1 #define linux 1 The same is not observed on other architectures. And for some reason, boost cares about "linux" or "__linux", and is not sensitive to "__linux__" nor "__gnu_linux__". -- Regards, Dimitri.
