#ifndef _SYS_SYSCTL_H #include_next # ifndef _ISOMAC /* Read or write system parameters (Linux, FreeBSD specific). */ extern int __sysctl (int *__name, int __nlen, void *__oldval, size_t *__oldlenp, void *__newval, size_t __newlen); libc_hidden_proto (__sysctl) # endif /* !_ISOMAC */ #endif /* _SYS_SYSCTL_H */