!libc_pre_versions libc { GLIBC_2.2 { ioperm; iopl; inb; inw; inl; _inb; _inw; _inl; outb; outw; _outl; _outb; _outw; _outl; pciconfig_read; pciconfig_write; # linuxthreads __clone2; } GLIBC_2.2.2 { # w* wordexp; } GLIBC_2.3.3 { # Changed PTHREAD_STACK_MIN. pthread_attr_setstack; pthread_attr_setstacksize; } GLIBC_2.2.6 { getunwind; } GLIBC_2.24 { recvmsg; sendmsg; } } librt { GLIBC_2.3.3 { # Changed timer_t. timer_gettime; timer_settime; } }