log10              23 maint/gnulib/lib/log10.c log10 (double x)
log10            1547 maint/gnulib/lib/math.in.h #   undef log10
log10            1548 maint/gnulib/lib/math.in.h #   define log10 rpl_log10
log10            1559 maint/gnulib/lib/math.in.h # undef log10