Defined in 3 files as a macro:
- external/gpl2/gettext/dist/gettext-runtime/intl/localename.c, line 362 (as a macro)
- external/gpl2/texinfo/dist/intl/localename.c, line 354 (as a macro)
- external/gpl3/binutils/dist/intl/localename.c, line 159 (as a macro)