sleep              33 maint/gnulib/lib/sleep.c sleep (unsigned int seconds)
sleep              48 maint/gnulib/lib/sleep.c # undef sleep
sleep            2007 maint/gnulib/lib/unistd.in.h #   undef sleep
sleep            2008 maint/gnulib/lib/unistd.in.h #   define sleep rpl_sleep
sleep            2020 maint/gnulib/lib/unistd.in.h # undef sleep