__GNUC__ 49 include/sys/cdefs.h #ifdef __GNUC__ __GNUC__ 51 include/sys/cdefs.h ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ __GNUC__ 52 include/sys/cdefs.h (__GNUC__ > (x))) __GNUC__ 71 include/sys/cdefs.h #ifndef __GNUC__ __GNUC__ 76 include/sys/cdefs.h #ifdef __GNUC__ __GNUC__ 143 usr/sample/tetris/screen.c #if !__GNUC__