Defined in 4 files as a macro:
- external/bsd/nsd/include/config.h, line 343 (as a macro)
- external/bsd/ntp/dist/ports/winnt/include/config.h, line 414 (as a macro)
- external/bsd/ntp/include/config.h, line 940 (as a macro)
- external/gpl2/xcvs/include/config.h, line 657 (as a macro)