libc { GLIBC_2.17 { # c* clock_getres; clock_gettime; clock_settime; clock_getcpuclockid; clock_nanosleep; } GLIBC_PRIVATE { __clock_getres; __clock_gettime; __clock_settime; __clock_getcpuclockid; __clock_nanosleep; } } librt { GLIBC_2.1 { # AIO functions. aio_cancel; aio_cancel64; aio_error; aio_error64; aio_fsync; aio_fsync64; aio_init; aio_read; aio_read64; aio_return; aio_return64; aio_suspend; aio_suspend64; aio_write; aio_write64; lio_listio; lio_listio64; } GLIBC_2.2 { # These have moved to libc and are still here only for compatibility. clock_getres; clock_gettime; clock_settime; clock_getcpuclockid; clock_nanosleep; # s* shm_open; shm_unlink; # t* timer_create; timer_delete; timer_getoverrun; timer_gettime; timer_settime; } GLIBC_2.3.4 { # m* mq_open; mq_close; mq_unlink; mq_getattr; mq_setattr; mq_notify; mq_send; mq_receive; mq_timedsend; mq_timedreceive; } GLIBC_2.7 { __mq_open_2; } }