negative_year     916 maint/gnulib/lib/nstrftime.c             bool negative_year = tp->tm_year < - TM_YEAR_BASE;
negative_year     917 maint/gnulib/lib/nstrftime.c             bool zero_thru_1899 = !negative_year & (tp->tm_year < 0);
negative_year     920 maint/gnulib/lib/nstrftime.c             DO_YEARISH (2, negative_year, century);