sleep              35 gnulib-tests/sleep.c sleep (unsigned int seconds)
sleep              50 gnulib-tests/sleep.c # undef sleep
sleep            1231 lib/unistd.in.h #   undef sleep
sleep            1232 lib/unistd.in.h #   define sleep rpl_sleep
sleep            1244 lib/unistd.in.h # undef sleep