Defined in 4 files as a macro:
- external/gpl3/gcc/dist/gcc/config/i386/linux64.h, line 35 (as a macro)
- external/gpl3/gcc/dist/gcc/config/linux.h, line 94 (as a macro)
- external/gpl3/gcc/dist/gcc/config/mips/linux.h, line 41 (as a macro)
- external/gpl3/gcc/dist/gcc/config/rs6000/linux64.h, line 427 (as a macro)