sleep              68 lib-src/ntlib.c sleep (unsigned seconds)
sleep              30 lib-src/ntlib.h #undef sleep
sleep            2024 lib/unistd.in.h #   undef sleep
sleep            2025 lib/unistd.in.h #   define sleep rpl_sleep
sleep            2037 lib/unistd.in.h # undef sleep
sleep             277 nt/inc/ms-w32.h #define sleep   sys_sleep