clang version 3.0 $ echo "" | /usr/bin/clang -E -dM - | grep linux #define __gnu_linux__ 1 #define __linux 1 #define __linux__ 1 #define linux 1
clang version 3.0
$ echo "" | /usr/bin/clang -E -dM - | grep linux
#define __gnu_linux__ 1
#define __linux 1
#define __linux__ 1
#define linux 1