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diff --git a/lib/libsys/_exit.2 b/lib/libsys/_exit.2
--- a/lib/libsys/_exit.2
+++ b/lib/libsys/_exit.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm _exit
.Nd terminate the calling process
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft void
.Fn _exit "int status"
diff --git a/lib/libsys/_umtx_op.2 b/lib/libsys/_umtx_op.2
--- a/lib/libsys/_umtx_op.2
+++ b/lib/libsys/_umtx_op.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm _umtx_op
.Nd interface for implementation of userspace threading synchronization primitives
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/umtx.h
.Ft int
diff --git a/lib/libsys/abort2.2 b/lib/libsys/abort2.2
--- a/lib/libsys/abort2.2
+++ b/lib/libsys/abort2.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm abort2
.Nd "abort process with diagnostics"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In stdlib.h
.Ft void
.Fn abort2 "const char *why" "int nargs" "void **args"
diff --git a/lib/libsys/accept.2 b/lib/libsys/accept.2
--- a/lib/libsys/accept.2
+++ b/lib/libsys/accept.2
@@ -32,9 +32,8 @@
.Nm accept ,
.Nm accept4
.Nd accept a connection on a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Ft int
diff --git a/lib/libsys/access.2 b/lib/libsys/access.2
--- a/lib/libsys/access.2
+++ b/lib/libsys/access.2
@@ -33,9 +33,8 @@
.Nm eaccess ,
.Nm faccessat
.Nd check accessibility of a file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn access "const char *path" "int mode"
diff --git a/lib/libsys/acct.2 b/lib/libsys/acct.2
--- a/lib/libsys/acct.2
+++ b/lib/libsys/acct.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm acct
.Nd enable or disable process accounting
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn acct "const char *file"
diff --git a/lib/libsys/adjtime.2 b/lib/libsys/adjtime.2
--- a/lib/libsys/adjtime.2
+++ b/lib/libsys/adjtime.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm adjtime
.Nd "correct the time to allow synchronization of the system clock"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/time.h
.Ft int
.Fn adjtime "const struct timeval *delta" "struct timeval *olddelta"
diff --git a/lib/libsys/aio_cancel.2 b/lib/libsys/aio_cancel.2
--- a/lib/libsys/aio_cancel.2
+++ b/lib/libsys/aio_cancel.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm aio_cancel
.Nd cancel an outstanding asynchronous I/O operation (REALTIME)
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fn aio_cancel "int fildes" "struct aiocb *iocb"
diff --git a/lib/libsys/aio_error.2 b/lib/libsys/aio_error.2
--- a/lib/libsys/aio_error.2
+++ b/lib/libsys/aio_error.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm aio_error
.Nd retrieve error status of asynchronous I/O operation (REALTIME)
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fn aio_error "const struct aiocb *iocb"
diff --git a/lib/libsys/aio_fsync.2 b/lib/libsys/aio_fsync.2
--- a/lib/libsys/aio_fsync.2
+++ b/lib/libsys/aio_fsync.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm aio_fsync
.Nd asynchronous file synchronization (REALTIME)
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fn aio_fsync "int op" "struct aiocb *iocb"
diff --git a/lib/libsys/aio_mlock.2 b/lib/libsys/aio_mlock.2
--- a/lib/libsys/aio_mlock.2
+++ b/lib/libsys/aio_mlock.2
@@ -30,9 +30,8 @@
.Nd asynchronous
.Xr mlock 2
operation
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fn aio_mlock "struct aiocb *iocb"
diff --git a/lib/libsys/aio_read.2 b/lib/libsys/aio_read.2
--- a/lib/libsys/aio_read.2
+++ b/lib/libsys/aio_read.2
@@ -30,9 +30,8 @@
.Nm aio_read2 ,
.Nm aio_readv
.Nd asynchronous read from a file (REALTIME)
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fn aio_read "struct aiocb *iocb"
diff --git a/lib/libsys/aio_return.2 b/lib/libsys/aio_return.2
--- a/lib/libsys/aio_return.2
+++ b/lib/libsys/aio_return.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm aio_return
.Nd retrieve return status of asynchronous I/O operation (REALTIME)
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft ssize_t
.Fn aio_return "struct aiocb *iocb"
diff --git a/lib/libsys/aio_suspend.2 b/lib/libsys/aio_suspend.2
--- a/lib/libsys/aio_suspend.2
+++ b/lib/libsys/aio_suspend.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm aio_suspend
.Nd suspend until asynchronous I/O operations or timeout complete (REALTIME)
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fn aio_suspend "const struct aiocb *const iocbs[]" "int niocb" "const struct timespec *timeout"
diff --git a/lib/libsys/aio_waitcomplete.2 b/lib/libsys/aio_waitcomplete.2
--- a/lib/libsys/aio_waitcomplete.2
+++ b/lib/libsys/aio_waitcomplete.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm aio_waitcomplete
.Nd wait for the next completion of an aio request
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft ssize_t
.Fn aio_waitcomplete "struct aiocb **iocbp" "struct timespec *timeout"
diff --git a/lib/libsys/aio_write.2 b/lib/libsys/aio_write.2
--- a/lib/libsys/aio_write.2
+++ b/lib/libsys/aio_write.2
@@ -30,9 +30,8 @@
.Nm aio_write2 ,
.Nm aio_writev
.Nd asynchronous write to a file (REALTIME)
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fn aio_write "struct aiocb *iocb"
diff --git a/lib/libsys/bind.2 b/lib/libsys/bind.2
--- a/lib/libsys/bind.2
+++ b/lib/libsys/bind.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm bind
.Nd assign a local protocol address to a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/socket.h
.Ft int
.Fn bind "int s" "const struct sockaddr *addr" "socklen_t addrlen"
diff --git a/lib/libsys/bindat.2 b/lib/libsys/bindat.2
--- a/lib/libsys/bindat.2
+++ b/lib/libsys/bindat.2
@@ -30,9 +30,8 @@
.Sh NAME
.Nm bindat
.Nd assign a local protocol address to a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Pp
diff --git a/lib/libsys/brk.2 b/lib/libsys/brk.2
--- a/lib/libsys/brk.2
+++ b/lib/libsys/brk.2
@@ -32,9 +32,8 @@
.Nm brk ,
.Nm sbrk
.Nd change data segment size
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn brk "const void *addr"
diff --git a/lib/libsys/cap_enter.2 b/lib/libsys/cap_enter.2
--- a/lib/libsys/cap_enter.2
+++ b/lib/libsys/cap_enter.2
@@ -33,9 +33,8 @@
.Nm cap_enter ,
.Nm cap_getmode
.Nd Capability mode system calls
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/capsicum.h
.Ft int
.Fn cap_enter "void"
diff --git a/lib/libsys/cap_fcntls_limit.2 b/lib/libsys/cap_fcntls_limit.2
--- a/lib/libsys/cap_fcntls_limit.2
+++ b/lib/libsys/cap_fcntls_limit.2
@@ -32,9 +32,8 @@
.Nm cap_fcntls_limit ,
.Nm cap_fcntls_get
.Nd manage allowed fcntl commands
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/capsicum.h
.Ft int
.Fn cap_fcntls_limit "int fd" "uint32_t fcntlrights"
diff --git a/lib/libsys/cap_ioctls_limit.2 b/lib/libsys/cap_ioctls_limit.2
--- a/lib/libsys/cap_ioctls_limit.2
+++ b/lib/libsys/cap_ioctls_limit.2
@@ -32,9 +32,8 @@
.Nm cap_ioctls_limit ,
.Nm cap_ioctls_get
.Nd manage allowed ioctl commands
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/capsicum.h
.Ft int
.Fn cap_ioctls_limit "int fd" "const unsigned long *cmds" "size_t ncmds"
diff --git a/lib/libsys/cap_rights_limit.2 b/lib/libsys/cap_rights_limit.2
--- a/lib/libsys/cap_rights_limit.2
+++ b/lib/libsys/cap_rights_limit.2
@@ -36,9 +36,8 @@
.Sh NAME
.Nm cap_rights_limit
.Nd limit capability rights
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/capsicum.h
.Ft int
.Fn cap_rights_limit "int fd" "const cap_rights_t *rights"
diff --git a/lib/libsys/chdir.2 b/lib/libsys/chdir.2
--- a/lib/libsys/chdir.2
+++ b/lib/libsys/chdir.2
@@ -32,9 +32,8 @@
.Nm chdir ,
.Nm fchdir
.Nd change current working directory
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn chdir "const char *path"
diff --git a/lib/libsys/chflags.2 b/lib/libsys/chflags.2
--- a/lib/libsys/chflags.2
+++ b/lib/libsys/chflags.2
@@ -34,9 +34,8 @@
.Nm fchflags ,
.Nm chflagsat
.Nd set file flags
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/stat.h
.In unistd.h
.Ft int
diff --git a/lib/libsys/chmod.2 b/lib/libsys/chmod.2
--- a/lib/libsys/chmod.2
+++ b/lib/libsys/chmod.2
@@ -34,9 +34,8 @@
.Nm lchmod ,
.Nm fchmodat
.Nd change mode of file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/stat.h
.Ft int
.Fn chmod "const char *path" "mode_t mode"
diff --git a/lib/libsys/chown.2 b/lib/libsys/chown.2
--- a/lib/libsys/chown.2
+++ b/lib/libsys/chown.2
@@ -34,9 +34,8 @@
.Nm lchown ,
.Nm fchownat
.Nd change owner and group of a file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn chown "const char *path" "uid_t owner" "gid_t group"
diff --git a/lib/libsys/chroot.2 b/lib/libsys/chroot.2
--- a/lib/libsys/chroot.2
+++ b/lib/libsys/chroot.2
@@ -32,9 +32,8 @@
.Nm chroot ,
.Nm fchroot
.Nd change root directory
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn chroot "const char *dirname"
diff --git a/lib/libsys/clock_gettime.2 b/lib/libsys/clock_gettime.2
--- a/lib/libsys/clock_gettime.2
+++ b/lib/libsys/clock_gettime.2
@@ -35,9 +35,8 @@
.Nm clock_settime ,
.Nm clock_getres
.Nd get/set/calibrate date and time
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In time.h
.Ft int
.Fn clock_gettime "clockid_t clock_id" "struct timespec *tp"
diff --git a/lib/libsys/close.2 b/lib/libsys/close.2
--- a/lib/libsys/close.2
+++ b/lib/libsys/close.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm close
.Nd delete a descriptor
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn close "int fd"
diff --git a/lib/libsys/closefrom.2 b/lib/libsys/closefrom.2
--- a/lib/libsys/closefrom.2
+++ b/lib/libsys/closefrom.2
@@ -30,9 +30,8 @@
.Nm closefrom ,
.Nm close_range
.Nd delete open file descriptors
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft void
.Fn closefrom "int lowfd"
diff --git a/lib/libsys/connect.2 b/lib/libsys/connect.2
--- a/lib/libsys/connect.2
+++ b/lib/libsys/connect.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm connect
.Nd initiate a connection on a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/socket.h
.Ft int
.Fn connect "int s" "const struct sockaddr *name" "socklen_t namelen"
diff --git a/lib/libsys/connectat.2 b/lib/libsys/connectat.2
--- a/lib/libsys/connectat.2
+++ b/lib/libsys/connectat.2
@@ -30,9 +30,8 @@
.Sh NAME
.Nm connectat
.Nd initiate a connection on a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Pp
diff --git a/lib/libsys/copy_file_range.2 b/lib/libsys/copy_file_range.2
--- a/lib/libsys/copy_file_range.2
+++ b/lib/libsys/copy_file_range.2
@@ -30,9 +30,8 @@
.Nm copy_file_range
.Nd kernel copy of a byte range from one regular file to another
or within one regular file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In unistd.h
.Ft ssize_t
diff --git a/lib/libsys/cpuset.2 b/lib/libsys/cpuset.2
--- a/lib/libsys/cpuset.2
+++ b/lib/libsys/cpuset.2
@@ -32,9 +32,8 @@
.Nm cpuset_getid ,
.Nm cpuset_setid
.Nd manage CPU affinity sets
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/cpuset.h
.Ft int
diff --git a/lib/libsys/cpuset_getaffinity.2 b/lib/libsys/cpuset_getaffinity.2
--- a/lib/libsys/cpuset_getaffinity.2
+++ b/lib/libsys/cpuset_getaffinity.2
@@ -30,9 +30,8 @@
.Nm cpuset_getaffinity ,
.Nm cpuset_setaffinity
.Nd manage CPU affinity
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/cpuset.h
.Ft int
diff --git a/lib/libsys/cpuset_getdomain.2 b/lib/libsys/cpuset_getdomain.2
--- a/lib/libsys/cpuset_getdomain.2
+++ b/lib/libsys/cpuset_getdomain.2
@@ -29,9 +29,8 @@
.Nm cpuset_getdomain ,
.Nm cpuset_setdomain
.Nd manage memory domain policy
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/domainset.h
.Ft int
diff --git a/lib/libsys/creat.2 b/lib/libsys/creat.2
--- a/lib/libsys/creat.2
+++ b/lib/libsys/creat.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm creat
.Nd create a new file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In fcntl.h
.Ft int
.Fn creat "const char *path" "mode_t mode"
diff --git a/lib/libsys/dup.2 b/lib/libsys/dup.2
--- a/lib/libsys/dup.2
+++ b/lib/libsys/dup.2
@@ -32,9 +32,8 @@
.Nm dup ,
.Nm dup2
.Nd duplicate an existing file descriptor
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn dup "int oldd"
diff --git a/lib/libsys/eventfd.2 b/lib/libsys/eventfd.2
--- a/lib/libsys/eventfd.2
+++ b/lib/libsys/eventfd.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm eventfd
.Nd create a file descriptor for event notification
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/eventfd.h
.Ft int
.Fn eventfd "unsigned int initval" "int flags"
diff --git a/lib/libsys/execve.2 b/lib/libsys/execve.2
--- a/lib/libsys/execve.2
+++ b/lib/libsys/execve.2
@@ -32,9 +32,8 @@
.Nm execve ,
.Nm fexecve
.Nd execute a file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn execve "const char *path" "char *const argv[]" "char *const envp[]"
diff --git a/lib/libsys/extattr_get_file.2 b/lib/libsys/extattr_get_file.2
--- a/lib/libsys/extattr_get_file.2
+++ b/lib/libsys/extattr_get_file.2
@@ -41,9 +41,8 @@
.Nm extattr_set_file ,
.Nm extattr_set_link
.Nd system calls to manipulate VFS extended attributes
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/extattr.h
.Ft int
diff --git a/lib/libsys/fcntl.2 b/lib/libsys/fcntl.2
--- a/lib/libsys/fcntl.2
+++ b/lib/libsys/fcntl.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm fcntl
.Nd file control
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In fcntl.h
.Ft int
.Fn fcntl "int fd" "int cmd" "..."
diff --git a/lib/libsys/ffclock.2 b/lib/libsys/ffclock.2
--- a/lib/libsys/ffclock.2
+++ b/lib/libsys/ffclock.2
@@ -33,9 +33,8 @@
.Nm ffclock_getestimate ,
.Nm ffclock_setestimate
.Nd Retrieve feed-forward counter, get and set feed-forward clock estimates
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/timeffc.h
.Ft int
.Fn ffclock_getcounter "ffcounter *ffcount"
diff --git a/lib/libsys/fhlink.2 b/lib/libsys/fhlink.2
--- a/lib/libsys/fhlink.2
+++ b/lib/libsys/fhlink.2
@@ -30,9 +30,8 @@
.Nm fhlink ,
.Nm fhlinkat
.Nd make a hard file link
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn fhlink "fhandle_t *fhp" "const char *to"
diff --git a/lib/libsys/fhopen.2 b/lib/libsys/fhopen.2
--- a/lib/libsys/fhopen.2
+++ b/lib/libsys/fhopen.2
@@ -39,9 +39,8 @@
.Nm fhstat ,
.Nm fhstatfs
.Nd access file via file handle
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/mount.h
.In sys/stat.h
diff --git a/lib/libsys/fhreadlink.2 b/lib/libsys/fhreadlink.2
--- a/lib/libsys/fhreadlink.2
+++ b/lib/libsys/fhreadlink.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm fhreadlink
.Nd read value of a symbolic link
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/mount.h
.Ft int
diff --git a/lib/libsys/flock.2 b/lib/libsys/flock.2
--- a/lib/libsys/flock.2
+++ b/lib/libsys/flock.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm flock
.Nd "apply or remove an advisory lock on an open file"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/file.h
.Fd "#define LOCK_SH 0x01 /* shared file lock */"
.Fd "#define LOCK_EX 0x02 /* exclusive file lock */"
diff --git a/lib/libsys/fork.2 b/lib/libsys/fork.2
--- a/lib/libsys/fork.2
+++ b/lib/libsys/fork.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm fork
.Nd create a new process
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft pid_t
.Fn fork void
diff --git a/lib/libsys/fspacectl.2 b/lib/libsys/fspacectl.2
--- a/lib/libsys/fspacectl.2
+++ b/lib/libsys/fspacectl.2
@@ -33,9 +33,8 @@
.Sh NAME
.Nm fspacectl
.Nd space management in a file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In fcntl.h
.Ft int
.Fo fspacectl
diff --git a/lib/libsys/fsync.2 b/lib/libsys/fsync.2
--- a/lib/libsys/fsync.2
+++ b/lib/libsys/fsync.2
@@ -37,9 +37,8 @@
.Nm fdatasync ,
.Nm fsync
.Nd "synchronise changes to a file"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn fdatasync "int fd"
diff --git a/lib/libsys/getdirentries.2 b/lib/libsys/getdirentries.2
--- a/lib/libsys/getdirentries.2
+++ b/lib/libsys/getdirentries.2
@@ -32,9 +32,8 @@
.Nm getdirentries ,
.Nm getdents
.Nd "get directory entries in a file system independent format"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In dirent.h
.Ft ssize_t
diff --git a/lib/libsys/getdtablesize.2 b/lib/libsys/getdtablesize.2
--- a/lib/libsys/getdtablesize.2
+++ b/lib/libsys/getdtablesize.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm getdtablesize
.Nd get file descriptor limit
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn getdtablesize void
diff --git a/lib/libsys/getfh.2 b/lib/libsys/getfh.2
--- a/lib/libsys/getfh.2
+++ b/lib/libsys/getfh.2
@@ -34,9 +34,8 @@
.Nm lgetfh ,
.Nm getfhat
.Nd get file handle
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/mount.h
.Ft int
diff --git a/lib/libsys/getfsstat.2 b/lib/libsys/getfsstat.2
--- a/lib/libsys/getfsstat.2
+++ b/lib/libsys/getfsstat.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm getfsstat
.Nd get list of all mounted file systems
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/ucred.h
.In sys/mount.h
diff --git a/lib/libsys/getgid.2 b/lib/libsys/getgid.2
--- a/lib/libsys/getgid.2
+++ b/lib/libsys/getgid.2
@@ -32,9 +32,8 @@
.Nm getgid ,
.Nm getegid
.Nd get group process identification
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft gid_t
.Fn getgid void
diff --git a/lib/libsys/getgroups.2 b/lib/libsys/getgroups.2
--- a/lib/libsys/getgroups.2
+++ b/lib/libsys/getgroups.2
@@ -39,9 +39,8 @@
.Sh NAME
.Nm getgroups
.Nd get the calling process' supplementary groups
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn getgroups "int gidsetlen" "gid_t *gidset"
diff --git a/lib/libsys/getitimer.2 b/lib/libsys/getitimer.2
--- a/lib/libsys/getitimer.2
+++ b/lib/libsys/getitimer.2
@@ -32,9 +32,8 @@
.Nm getitimer ,
.Nm setitimer
.Nd get/set value of interval timer
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/time.h
.Fd "#define ITIMER_REAL 0"
.Fd "#define ITIMER_VIRTUAL 1"
diff --git a/lib/libsys/getlogin.2 b/lib/libsys/getlogin.2
--- a/lib/libsys/getlogin.2
+++ b/lib/libsys/getlogin.2
@@ -33,9 +33,8 @@
.Nm getlogin_r ,
.Nm setlogin
.Nd get/set login name
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft char *
.Fn getlogin void
diff --git a/lib/libsys/getloginclass.2 b/lib/libsys/getloginclass.2
--- a/lib/libsys/getloginclass.2
+++ b/lib/libsys/getloginclass.2
@@ -29,9 +29,8 @@
.Nm getloginclass ,
.Nm setloginclass
.Nd get/set login class
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn getloginclass "char *name" "size_t len"
diff --git a/lib/libsys/getpeername.2 b/lib/libsys/getpeername.2
--- a/lib/libsys/getpeername.2
+++ b/lib/libsys/getpeername.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm getpeername
.Nd get name of connected peer
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Ft int
diff --git a/lib/libsys/getpgrp.2 b/lib/libsys/getpgrp.2
--- a/lib/libsys/getpgrp.2
+++ b/lib/libsys/getpgrp.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm getpgrp
.Nd get process group
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft pid_t
.Fn getpgrp void
diff --git a/lib/libsys/getpid.2 b/lib/libsys/getpid.2
--- a/lib/libsys/getpid.2
+++ b/lib/libsys/getpid.2
@@ -32,9 +32,8 @@
.Nm getpid ,
.Nm getppid
.Nd get parent or calling process identification
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft pid_t
.Fn getpid void
diff --git a/lib/libsys/getpriority.2 b/lib/libsys/getpriority.2
--- a/lib/libsys/getpriority.2
+++ b/lib/libsys/getpriority.2
@@ -32,9 +32,8 @@
.Nm getpriority ,
.Nm setpriority
.Nd get/set program scheduling priority
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/time.h
.In sys/resource.h
.Ft int
diff --git a/lib/libsys/getrandom.2 b/lib/libsys/getrandom.2
--- a/lib/libsys/getrandom.2
+++ b/lib/libsys/getrandom.2
@@ -27,9 +27,8 @@
.Sh NAME
.Nm getrandom
.Nd get random data
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/random.h
.Ft ssize_t
.Fn getrandom "void *buf" "size_t buflen" "unsigned int flags"
diff --git a/lib/libsys/getrlimit.2 b/lib/libsys/getrlimit.2
--- a/lib/libsys/getrlimit.2
+++ b/lib/libsys/getrlimit.2
@@ -32,9 +32,8 @@
.Nm getrlimit ,
.Nm setrlimit
.Nd control maximum system resource consumption
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/time.h
.In sys/resource.h
diff --git a/lib/libsys/getrlimitusage.2 b/lib/libsys/getrlimitusage.2
--- a/lib/libsys/getrlimitusage.2
+++ b/lib/libsys/getrlimitusage.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm getrlimitusage
.Nd Query usage of the current process' limited resources
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/resource.h
.Ft int
.Fn getrlimitusage "unsigned which" "int flags" "rlim_t *res"
diff --git a/lib/libsys/getrusage.2 b/lib/libsys/getrusage.2
--- a/lib/libsys/getrusage.2
+++ b/lib/libsys/getrusage.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm getrusage
.Nd get information about resource utilization
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/time.h
.In sys/resource.h
diff --git a/lib/libsys/getsid.2 b/lib/libsys/getsid.2
--- a/lib/libsys/getsid.2
+++ b/lib/libsys/getsid.2
@@ -27,9 +27,8 @@
.Sh NAME
.Nm getsid
.Nd get process session
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft pid_t
.Fn getsid "pid_t pid"
diff --git a/lib/libsys/getsockname.2 b/lib/libsys/getsockname.2
--- a/lib/libsys/getsockname.2
+++ b/lib/libsys/getsockname.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm getsockname
.Nd get socket name
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Ft int
diff --git a/lib/libsys/getsockopt.2 b/lib/libsys/getsockopt.2
--- a/lib/libsys/getsockopt.2
+++ b/lib/libsys/getsockopt.2
@@ -32,9 +32,8 @@
.Nm getsockopt ,
.Nm setsockopt
.Nd get and set options on sockets
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Ft int
diff --git a/lib/libsys/gettimeofday.2 b/lib/libsys/gettimeofday.2
--- a/lib/libsys/gettimeofday.2
+++ b/lib/libsys/gettimeofday.2
@@ -32,9 +32,8 @@
.Nm gettimeofday ,
.Nm settimeofday
.Nd get/set date and time
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/time.h
.Ft int
.Fn gettimeofday "struct timeval *tp" "struct timezone *tzp"
diff --git a/lib/libsys/getuid.2 b/lib/libsys/getuid.2
--- a/lib/libsys/getuid.2
+++ b/lib/libsys/getuid.2
@@ -32,9 +32,8 @@
.Nm getuid ,
.Nm geteuid
.Nd get user identification
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft uid_t
.Fn getuid void
diff --git a/lib/libsys/inotify.2 b/lib/libsys/inotify.2
--- a/lib/libsys/inotify.2
+++ b/lib/libsys/inotify.2
@@ -13,9 +13,8 @@
.Nm inotify_add_watch_at ,
.Nm inotify_rm_watch
.Nd monitor file system events
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/inotify.h
.Ft int
.Fo inotify_init
diff --git a/lib/libsys/intro.2 b/lib/libsys/intro.2
--- a/lib/libsys/intro.2
+++ b/lib/libsys/intro.2
@@ -35,9 +35,8 @@
.Nm intro ,
.Nm errno
.Nd introduction to system calls and their error numbers
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/syscall.h
.In errno.h
.Sh DESCRIPTION
diff --git a/lib/libsys/ioctl.2 b/lib/libsys/ioctl.2
--- a/lib/libsys/ioctl.2
+++ b/lib/libsys/ioctl.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm ioctl
.Nd control device
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/ioctl.h
.Ft int
.Fn ioctl "int fd" "unsigned long request" ...
diff --git a/lib/libsys/issetugid.2 b/lib/libsys/issetugid.2
--- a/lib/libsys/issetugid.2
+++ b/lib/libsys/issetugid.2
@@ -33,9 +33,8 @@
.Sh NAME
.Nm issetugid
.Nd is current process tainted by uid or gid changes
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn issetugid void
diff --git a/lib/libsys/jail.2 b/lib/libsys/jail.2
--- a/lib/libsys/jail.2
+++ b/lib/libsys/jail.2
@@ -35,9 +35,8 @@
.Nm jail_remove_jd ,
.Nm jail_attach_jd
.Nd create and manage system jails
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/jail.h
.Ft int
diff --git a/lib/libsys/kcmp.2 b/lib/libsys/kcmp.2
--- a/lib/libsys/kcmp.2
+++ b/lib/libsys/kcmp.2
@@ -33,9 +33,8 @@
.Sh NAME
.Nm kcmp
.Nd compare two kernel objects
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn kcmp "pid_t pid1" "pid_t pid2" "int type" "uintptr_t idx1" "uintptr_t idx2"
diff --git a/lib/libsys/kenv.2 b/lib/libsys/kenv.2
--- a/lib/libsys/kenv.2
+++ b/lib/libsys/kenv.2
@@ -30,9 +30,8 @@
.Sh NAME
.Nm kenv
.Nd kernel environment
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In kenv.h
.Ft int
.Fn kenv "int action" "const char *name" "char *value" "int len"
diff --git a/lib/libsys/kill.2 b/lib/libsys/kill.2
--- a/lib/libsys/kill.2
+++ b/lib/libsys/kill.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm kill
.Nd send signal to a process
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In signal.h
.Ft int
diff --git a/lib/libsys/kldfind.2 b/lib/libsys/kldfind.2
--- a/lib/libsys/kldfind.2
+++ b/lib/libsys/kldfind.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm kldfind
.Nd returns the fileid of a kld file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/linker.h
.Ft int
.Fn kldfind "const char *file"
diff --git a/lib/libsys/kldfirstmod.2 b/lib/libsys/kldfirstmod.2
--- a/lib/libsys/kldfirstmod.2
+++ b/lib/libsys/kldfirstmod.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm kldfirstmod
.Nd "return first module id from the kld file specified"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/linker.h
.Ft int
.Fn kldfirstmod "int fileid"
diff --git a/lib/libsys/kldload.2 b/lib/libsys/kldload.2
--- a/lib/libsys/kldload.2
+++ b/lib/libsys/kldload.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm kldload
.Nd load KLD files into the kernel
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/linker.h
.Ft int
.Fn kldload "const char *file"
diff --git a/lib/libsys/kldnext.2 b/lib/libsys/kldnext.2
--- a/lib/libsys/kldnext.2
+++ b/lib/libsys/kldnext.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm kldnext
.Nd return the fileid of the next kld file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/linker.h
.Ft int
.Fn kldnext "int fileid"
diff --git a/lib/libsys/kldstat.2 b/lib/libsys/kldstat.2
--- a/lib/libsys/kldstat.2
+++ b/lib/libsys/kldstat.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm kldstat
.Nd get status of kld file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/linker.h
.Ft int
.Fn kldstat "int fileid" "struct kld_file_stat *stat"
diff --git a/lib/libsys/kldsym.2 b/lib/libsys/kldsym.2
--- a/lib/libsys/kldsym.2
+++ b/lib/libsys/kldsym.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm kldsym
.Nd look up address by symbol name in a KLD
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/linker.h
.Ft int
.Fn kldsym "int fileid" "int cmd" "void *data"
diff --git a/lib/libsys/kldunload.2 b/lib/libsys/kldunload.2
--- a/lib/libsys/kldunload.2
+++ b/lib/libsys/kldunload.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm kldunload , kldunloadf
.Nd unload kld files
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/linker.h
.Ft int
.Fn kldunload "int fileid"
diff --git a/lib/libsys/kqueue.2 b/lib/libsys/kqueue.2
--- a/lib/libsys/kqueue.2
+++ b/lib/libsys/kqueue.2
@@ -29,9 +29,8 @@
.Nm kqueue ,
.Nm kevent
.Nd kernel event notification mechanism
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/event.h
.Ft int
.Fn kqueue "void"
diff --git a/lib/libsys/ktrace.2 b/lib/libsys/ktrace.2
--- a/lib/libsys/ktrace.2
+++ b/lib/libsys/ktrace.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm ktrace
.Nd process tracing
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/time.h
.In sys/uio.h
diff --git a/lib/libsys/link.2 b/lib/libsys/link.2
--- a/lib/libsys/link.2
+++ b/lib/libsys/link.2
@@ -32,9 +32,8 @@
.Nm link ,
.Nm linkat
.Nd make a hard file link
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn link "const char *name1" "const char *name2"
diff --git a/lib/libsys/lio_listio.2 b/lib/libsys/lio_listio.2
--- a/lib/libsys/lio_listio.2
+++ b/lib/libsys/lio_listio.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm lio_listio
.Nd "list directed I/O (REALTIME)"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In aio.h
.Ft int
.Fo lio_listio
diff --git a/lib/libsys/listen.2 b/lib/libsys/listen.2
--- a/lib/libsys/listen.2
+++ b/lib/libsys/listen.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm listen
.Nd listen for connections on a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/socket.h
.Ft int
.Fn listen "int s" "int backlog"
diff --git a/lib/libsys/lseek.2 b/lib/libsys/lseek.2
--- a/lib/libsys/lseek.2
+++ b/lib/libsys/lseek.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm lseek
.Nd reposition read/write file offset
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft off_t
.Fn lseek "int fildes" "off_t offset" "int whence"
diff --git a/lib/libsys/madvise.2 b/lib/libsys/madvise.2
--- a/lib/libsys/madvise.2
+++ b/lib/libsys/madvise.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm madvise , posix_madvise
.Nd give advice about use of memory
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn madvise "void *addr" "size_t len" "int behav"
diff --git a/lib/libsys/membarrier.2 b/lib/libsys/membarrier.2
--- a/lib/libsys/membarrier.2
+++ b/lib/libsys/membarrier.2
@@ -32,9 +32,8 @@
.Sh NAME
.Nm membarrier
.Nd memory barrier
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/membarrier.h
.Ft int
.Fn membarrier "int cmd" "unsigned flags" "int cpu_id"
diff --git a/lib/libsys/mincore.2 b/lib/libsys/mincore.2
--- a/lib/libsys/mincore.2
+++ b/lib/libsys/mincore.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm mincore
.Nd determine residency of memory pages
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn mincore "const void *addr" "size_t len" "char *vec"
diff --git a/lib/libsys/minherit.2 b/lib/libsys/minherit.2
--- a/lib/libsys/minherit.2
+++ b/lib/libsys/minherit.2
@@ -32,9 +32,8 @@
.Sh NAME
.Nm minherit
.Nd control the inheritance of pages
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn minherit "void *addr" "size_t len" "int inherit"
diff --git a/lib/libsys/mkdir.2 b/lib/libsys/mkdir.2
--- a/lib/libsys/mkdir.2
+++ b/lib/libsys/mkdir.2
@@ -32,9 +32,8 @@
.Nm mkdir ,
.Nm mkdirat
.Nd make a directory file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/stat.h
.Ft int
.Fn mkdir "const char *path" "mode_t mode"
diff --git a/lib/libsys/mkfifo.2 b/lib/libsys/mkfifo.2
--- a/lib/libsys/mkfifo.2
+++ b/lib/libsys/mkfifo.2
@@ -32,9 +32,8 @@
.Nm mkfifo ,
.Nm mkfifoat
.Nd make a fifo file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/stat.h
.Ft int
diff --git a/lib/libsys/mknod.2 b/lib/libsys/mknod.2
--- a/lib/libsys/mknod.2
+++ b/lib/libsys/mknod.2
@@ -32,9 +32,8 @@
.Nm mknod ,
.Nm mknodat
.Nd make a special file node
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/stat.h
.Ft int
.Fn mknod "const char *path" "mode_t mode" "dev_t dev"
diff --git a/lib/libsys/mlock.2 b/lib/libsys/mlock.2
--- a/lib/libsys/mlock.2
+++ b/lib/libsys/mlock.2
@@ -32,9 +32,8 @@
.Nm mlock ,
.Nm munlock
.Nd lock (unlock) physical pages in memory
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn mlock "const void *addr" "size_t len"
diff --git a/lib/libsys/mlockall.2 b/lib/libsys/mlockall.2
--- a/lib/libsys/mlockall.2
+++ b/lib/libsys/mlockall.2
@@ -35,9 +35,8 @@
.Nm mlockall ,
.Nm munlockall
.Nd lock (unlock) the address space of a process
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn mlockall "int flags"
diff --git a/lib/libsys/mmap.2 b/lib/libsys/mmap.2
--- a/lib/libsys/mmap.2
+++ b/lib/libsys/mmap.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm mmap
.Nd allocate memory, or map files or devices into memory
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft void *
.Fn mmap "void *addr" "size_t len" "int prot" "int flags" "int fd" "off_t offset"
diff --git a/lib/libsys/modfind.2 b/lib/libsys/modfind.2
--- a/lib/libsys/modfind.2
+++ b/lib/libsys/modfind.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm modfind
.Nd returns the modid of a kernel module
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/module.h
.Ft int
diff --git a/lib/libsys/modnext.2 b/lib/libsys/modnext.2
--- a/lib/libsys/modnext.2
+++ b/lib/libsys/modnext.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm modnext
.Nd return the modid of the next kernel module
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/module.h
.Ft int
diff --git a/lib/libsys/modstat.2 b/lib/libsys/modstat.2
--- a/lib/libsys/modstat.2
+++ b/lib/libsys/modstat.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm modstat
.Nd get status of kernel module
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/module.h
.Ft int
diff --git a/lib/libsys/mount.2 b/lib/libsys/mount.2
--- a/lib/libsys/mount.2
+++ b/lib/libsys/mount.2
@@ -33,9 +33,8 @@
.Nm nmount ,
.Nm unmount
.Nd mount or dismount a file system
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/mount.h
.Ft int
diff --git a/lib/libsys/mprotect.2 b/lib/libsys/mprotect.2
--- a/lib/libsys/mprotect.2
+++ b/lib/libsys/mprotect.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm mprotect
.Nd control the protection of pages
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn mprotect "void *addr" "size_t len" "int prot"
diff --git a/lib/libsys/mq_close.2 b/lib/libsys/mq_close.2
--- a/lib/libsys/mq_close.2
+++ b/lib/libsys/mq_close.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm mq_close
.Nd "close a message queue (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft int
.Fn mq_close "mqd_t mqdes"
diff --git a/lib/libsys/mq_getattr.2 b/lib/libsys/mq_getattr.2
--- a/lib/libsys/mq_getattr.2
+++ b/lib/libsys/mq_getattr.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm mq_getattr
.Nd "get message queue attributes (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft int
.Fn mq_getattr "mqd_t mqdes" "struct mq_attr *mqstat"
diff --git a/lib/libsys/mq_notify.2 b/lib/libsys/mq_notify.2
--- a/lib/libsys/mq_notify.2
+++ b/lib/libsys/mq_notify.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm mq_notify
.Nd "notify process that a message is available (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft int
.Fn mq_notify "mqd_t mqdes" "const struct sigevent *notification"
diff --git a/lib/libsys/mq_open.2 b/lib/libsys/mq_open.2
--- a/lib/libsys/mq_open.2
+++ b/lib/libsys/mq_open.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm mq_open
.Nd "open a message queue (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft mqd_t
.Fn mq_open "const char *name" "int oflag" "..."
diff --git a/lib/libsys/mq_receive.2 b/lib/libsys/mq_receive.2
--- a/lib/libsys/mq_receive.2
+++ b/lib/libsys/mq_receive.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm mq_receive , mq_timedreceive
.Nd "receive a message from message queue (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft ssize_t
.Fo mq_receive
diff --git a/lib/libsys/mq_send.2 b/lib/libsys/mq_send.2
--- a/lib/libsys/mq_send.2
+++ b/lib/libsys/mq_send.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm mq_send , mq_timedsend
.Nd "send a message to message queue (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft int
.Fo mq_send
diff --git a/lib/libsys/mq_setattr.2 b/lib/libsys/mq_setattr.2
--- a/lib/libsys/mq_setattr.2
+++ b/lib/libsys/mq_setattr.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm mq_setattr
.Nd "set message queue attributes (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft int
.Fo mq_setattr
diff --git a/lib/libsys/mq_unlink.2 b/lib/libsys/mq_unlink.2
--- a/lib/libsys/mq_unlink.2
+++ b/lib/libsys/mq_unlink.2
@@ -40,9 +40,8 @@
.Sh NAME
.Nm mq_unlink
.Nd "mq_unlink - remove a message queue (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In mqueue.h
.Ft int
.Fn mq_unlink "const char *name"
diff --git a/lib/libsys/msgctl.2 b/lib/libsys/msgctl.2
--- a/lib/libsys/msgctl.2
+++ b/lib/libsys/msgctl.2
@@ -35,9 +35,8 @@
.Sh NAME
.Nm msgctl
.Nd message control operations
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ipc.h
.In sys/msg.h
diff --git a/lib/libsys/msgget.2 b/lib/libsys/msgget.2
--- a/lib/libsys/msgget.2
+++ b/lib/libsys/msgget.2
@@ -36,9 +36,8 @@
.Sh NAME
.Nm msgget
.Nd get message queue
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/msg.h
.Ft int
.Fn msgget "key_t key" "int msgflg"
diff --git a/lib/libsys/msgrcv.2 b/lib/libsys/msgrcv.2
--- a/lib/libsys/msgrcv.2
+++ b/lib/libsys/msgrcv.2
@@ -36,9 +36,8 @@
.Sh NAME
.Nm msgrcv
.Nd receive a message from a message queue
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ipc.h
.In sys/msg.h
diff --git a/lib/libsys/msgsnd.2 b/lib/libsys/msgsnd.2
--- a/lib/libsys/msgsnd.2
+++ b/lib/libsys/msgsnd.2
@@ -35,9 +35,8 @@
.Sh NAME
.Nm msgsnd
.Nd send a message to a message queue
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ipc.h
.In sys/msg.h
diff --git a/lib/libsys/msync.2 b/lib/libsys/msync.2
--- a/lib/libsys/msync.2
+++ b/lib/libsys/msync.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm msync
.Nd synchronize a mapped region
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn msync "void *addr" "size_t len" "int flags"
diff --git a/lib/libsys/munmap.2 b/lib/libsys/munmap.2
--- a/lib/libsys/munmap.2
+++ b/lib/libsys/munmap.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm munmap
.Nd remove a mapping
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/mman.h
.Ft int
.Fn munmap "void *addr" "size_t len"
diff --git a/lib/libsys/nanosleep.2 b/lib/libsys/nanosleep.2
--- a/lib/libsys/nanosleep.2
+++ b/lib/libsys/nanosleep.2
@@ -33,9 +33,8 @@
.Sh NAME
.Nm nanosleep
.Nd high resolution sleep
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In time.h
.Ft int
.Fo clock_nanosleep
diff --git a/lib/libsys/nfssvc.2 b/lib/libsys/nfssvc.2
--- a/lib/libsys/nfssvc.2
+++ b/lib/libsys/nfssvc.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm nfssvc
.Nd NFS services
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/mount.h
.In sys/time.h
diff --git a/lib/libsys/ntp_adjtime.2 b/lib/libsys/ntp_adjtime.2
--- a/lib/libsys/ntp_adjtime.2
+++ b/lib/libsys/ntp_adjtime.2
@@ -34,9 +34,8 @@
.Nm ntp_adjtime ,
.Nm ntp_gettime
.Nd Network Time Protocol (NTP) daemon interface system calls
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/timex.h
.Ft int
.Fn ntp_adjtime "struct timex *"
diff --git a/lib/libsys/open.2 b/lib/libsys/open.2
--- a/lib/libsys/open.2
+++ b/lib/libsys/open.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm open , openat
.Nd open or create a file for reading, writing or executing
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In fcntl.h
.Ft int
.Fn open "const char *path" "int flags" "..."
diff --git a/lib/libsys/pathconf.2 b/lib/libsys/pathconf.2
--- a/lib/libsys/pathconf.2
+++ b/lib/libsys/pathconf.2
@@ -33,9 +33,8 @@
.Nm lpathconf ,
.Nm fpathconf
.Nd get configurable pathname variables
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft long
.Fn pathconf "const char *path" "int name"
diff --git a/lib/libsys/pdfork.2 b/lib/libsys/pdfork.2
--- a/lib/libsys/pdfork.2
+++ b/lib/libsys/pdfork.2
@@ -40,9 +40,8 @@
.Nm pdkill ,
.Nm pdwait
.Nd System calls to manage process descriptors
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/procdesc.h
.Ft pid_t
.Fn pdfork "int *fdp" "int pdflags"
diff --git a/lib/libsys/pipe.2 b/lib/libsys/pipe.2
--- a/lib/libsys/pipe.2
+++ b/lib/libsys/pipe.2
@@ -32,9 +32,8 @@
.Nm pipe ,
.Nm pipe2
.Nd create descriptor pair for interprocess communication
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn pipe "int fildes[2]"
diff --git a/lib/libsys/poll.2 b/lib/libsys/poll.2
--- a/lib/libsys/poll.2
+++ b/lib/libsys/poll.2
@@ -33,9 +33,8 @@
.Sh NAME
.Nm poll
.Nd synchronous I/O multiplexing
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In poll.h
.Ft int
.Fn poll "struct pollfd fds[]" "nfds_t nfds" "int timeout"
diff --git a/lib/libsys/posix_fadvise.2 b/lib/libsys/posix_fadvise.2
--- a/lib/libsys/posix_fadvise.2
+++ b/lib/libsys/posix_fadvise.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm posix_fadvise
.Nd give advice about use of file data
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In fcntl.h
.Ft int
.Fn posix_fadvise "int fd" "off_t offset" "off_t len" "int advice"
diff --git a/lib/libsys/posix_fallocate.2 b/lib/libsys/posix_fallocate.2
--- a/lib/libsys/posix_fallocate.2
+++ b/lib/libsys/posix_fallocate.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm posix_fallocate
.Nd pre-allocate storage for a range in a file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In fcntl.h
.Ft int
.Fn posix_fallocate "int fd" "off_t offset" "off_t len"
diff --git a/lib/libsys/posix_openpt.2 b/lib/libsys/posix_openpt.2
--- a/lib/libsys/posix_openpt.2
+++ b/lib/libsys/posix_openpt.2
@@ -41,9 +41,8 @@
.Sh NAME
.Nm posix_openpt
.Nd "open a pseudo-terminal device"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In fcntl.h
.In stdlib.h
.Ft int
diff --git a/lib/libsys/procctl.2 b/lib/libsys/procctl.2
--- a/lib/libsys/procctl.2
+++ b/lib/libsys/procctl.2
@@ -33,9 +33,8 @@
.Sh NAME
.Nm procctl
.Nd control processes
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/procctl.h
.Ft int
.Fn procctl "idtype_t idtype" "id_t id" "int cmd" "void *data"
diff --git a/lib/libsys/profil.2 b/lib/libsys/profil.2
--- a/lib/libsys/profil.2
+++ b/lib/libsys/profil.2
@@ -34,9 +34,8 @@
.Sh NAME
.Nm profil
.Nd control process profiling
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn profil "char *samples" "size_t size" "vm_offset_t offset" "int scale"
diff --git a/lib/libsys/pselect.2 b/lib/libsys/pselect.2
--- a/lib/libsys/pselect.2
+++ b/lib/libsys/pselect.2
@@ -32,9 +32,8 @@
.Sh NAME
.Nm pselect
.Nd synchronous I/O multiplexing a la POSIX.1g
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/select.h
.Ft int
.Fo pselect
diff --git a/lib/libsys/ptrace.2 b/lib/libsys/ptrace.2
--- a/lib/libsys/ptrace.2
+++ b/lib/libsys/ptrace.2
@@ -7,9 +7,8 @@
.Sh NAME
.Nm ptrace
.Nd process tracing and debugging
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ptrace.h
.Ft int
diff --git a/lib/libsys/quotactl.2 b/lib/libsys/quotactl.2
--- a/lib/libsys/quotactl.2
+++ b/lib/libsys/quotactl.2
@@ -34,9 +34,8 @@
.Sh NAME
.Nm quotactl
.Nd manipulate file system quotas
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In ufs/ufs/quota.h
.Ft int
diff --git a/lib/libsys/rctl_add_rule.2 b/lib/libsys/rctl_add_rule.2
--- a/lib/libsys/rctl_add_rule.2
+++ b/lib/libsys/rctl_add_rule.2
@@ -32,9 +32,8 @@
.Nm rctl_get_rules ,
.Nm rctl_remove_rule
.Nd manipulate and query the resource limits database
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/rctl.h
.Ft int
.Fo rctl_add_rule
diff --git a/lib/libsys/read.2 b/lib/libsys/read.2
--- a/lib/libsys/read.2
+++ b/lib/libsys/read.2
@@ -34,9 +34,8 @@
.Nm pread ,
.Nm preadv
.Nd read input
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft ssize_t
.Fn read "int fd" "void *buf" "size_t nbytes"
diff --git a/lib/libsys/readlink.2 b/lib/libsys/readlink.2
--- a/lib/libsys/readlink.2
+++ b/lib/libsys/readlink.2
@@ -32,9 +32,8 @@
.Nm readlink ,
.Nm readlinkat
.Nd read value of a symbolic link
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft ssize_t
.Fn readlink "const char *restrict path" "char *restrict buf" "size_t bufsiz"
diff --git a/lib/libsys/reboot.2 b/lib/libsys/reboot.2
--- a/lib/libsys/reboot.2
+++ b/lib/libsys/reboot.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm reboot
.Nd reboot system or halt processor
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.In sys/reboot.h
.Ft int
diff --git a/lib/libsys/recv.2 b/lib/libsys/recv.2
--- a/lib/libsys/recv.2
+++ b/lib/libsys/recv.2
@@ -34,9 +34,8 @@
.Nm recvmsg ,
.Nm recvmmsg
.Nd receive message(s) from a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/socket.h
.Ft ssize_t
.Fn recv "int s" "void *buf" "size_t len" "int flags"
diff --git a/lib/libsys/rename.2 b/lib/libsys/rename.2
--- a/lib/libsys/rename.2
+++ b/lib/libsys/rename.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm rename
.Nd change the name of a file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In stdio.h
.Ft int
.Fn rename "const char *from" "const char *to"
diff --git a/lib/libsys/revoke.2 b/lib/libsys/revoke.2
--- a/lib/libsys/revoke.2
+++ b/lib/libsys/revoke.2
@@ -34,9 +34,8 @@
.Sh NAME
.Nm revoke
.Nd revoke file access
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn revoke "const char *path"
diff --git a/lib/libsys/rfork.2 b/lib/libsys/rfork.2
--- a/lib/libsys/rfork.2
+++ b/lib/libsys/rfork.2
@@ -9,9 +9,8 @@
.Sh NAME
.Nm rfork
.Nd manipulate process resources
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft pid_t
.Fn rfork "int flags"
diff --git a/lib/libsys/rmdir.2 b/lib/libsys/rmdir.2
--- a/lib/libsys/rmdir.2
+++ b/lib/libsys/rmdir.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm rmdir
.Nd remove a directory file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn rmdir "const char *path"
diff --git a/lib/libsys/rtprio.2 b/lib/libsys/rtprio.2
--- a/lib/libsys/rtprio.2
+++ b/lib/libsys/rtprio.2
@@ -58,9 +58,8 @@
.Nm rtprio ,
.Nm rtprio_thread
.Nd examine or modify realtime or idle priority
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/rtprio.h
.Ft int
diff --git a/lib/libsys/sched_get_priority_max.2 b/lib/libsys/sched_get_priority_max.2
--- a/lib/libsys/sched_get_priority_max.2
+++ b/lib/libsys/sched_get_priority_max.2
@@ -30,9 +30,8 @@
.Nm sched_get_priority_min ,
.Nm sched_rr_get_interval
.Nd get scheduling parameter limits
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sched.h
.Ft int
.Fn sched_get_priority_max "int policy"
diff --git a/lib/libsys/sched_setparam.2 b/lib/libsys/sched_setparam.2
--- a/lib/libsys/sched_setparam.2
+++ b/lib/libsys/sched_setparam.2
@@ -29,9 +29,8 @@
.Nm sched_setparam ,
.Nm sched_getparam
.Nd set/get scheduling parameters
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sched.h
.Ft int
.Fn sched_setparam "pid_t pid" "const struct sched_param *param"
diff --git a/lib/libsys/sched_setscheduler.2 b/lib/libsys/sched_setscheduler.2
--- a/lib/libsys/sched_setscheduler.2
+++ b/lib/libsys/sched_setscheduler.2
@@ -29,9 +29,8 @@
.Nm sched_setscheduler ,
.Nm sched_getscheduler
.Nd set/get scheduling policy and scheduler parameters
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sched.h
.Ft int
.Fn sched_setscheduler "pid_t pid" "int policy" "const struct sched_param *param"
diff --git a/lib/libsys/sched_yield.2 b/lib/libsys/sched_yield.2
--- a/lib/libsys/sched_yield.2
+++ b/lib/libsys/sched_yield.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm sched_yield
.Nd yield processor
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sched.h
.Ft int
.Fn sched_yield void
diff --git a/lib/libsys/sctp_generic_recvmsg.2 b/lib/libsys/sctp_generic_recvmsg.2
--- a/lib/libsys/sctp_generic_recvmsg.2
+++ b/lib/libsys/sctp_generic_recvmsg.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sctp_generic_recvmsg
.Nd receive data from a peer
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.In netinet/sctp.h
diff --git a/lib/libsys/sctp_generic_sendmsg.2 b/lib/libsys/sctp_generic_sendmsg.2
--- a/lib/libsys/sctp_generic_sendmsg.2
+++ b/lib/libsys/sctp_generic_sendmsg.2
@@ -32,9 +32,8 @@
.Nm sctp_generic_sendmsg ,
.Nm sctp_generic_sendmsg_iov
.Nd send data to a peer
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.In netinet/sctp.h
diff --git a/lib/libsys/sctp_peeloff.2 b/lib/libsys/sctp_peeloff.2
--- a/lib/libsys/sctp_peeloff.2
+++ b/lib/libsys/sctp_peeloff.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sctp_peeloff
.Nd detach an association from a one-to-many socket to its own fd
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.In netinet/sctp.h
diff --git a/lib/libsys/select.2 b/lib/libsys/select.2
--- a/lib/libsys/select.2
+++ b/lib/libsys/select.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm select
.Nd synchronous I/O multiplexing
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/select.h
.Ft int
.Fn select "int nfds" "fd_set *readfds" "fd_set *writefds" "fd_set *exceptfds" "struct timeval *timeout"
diff --git a/lib/libsys/semctl.2 b/lib/libsys/semctl.2
--- a/lib/libsys/semctl.2
+++ b/lib/libsys/semctl.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm semctl
.Nd control operations on a semaphore set
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ipc.h
.In sys/sem.h
diff --git a/lib/libsys/semget.2 b/lib/libsys/semget.2
--- a/lib/libsys/semget.2
+++ b/lib/libsys/semget.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm semget
.Nd obtain a semaphore id
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/sem.h
.Ft int
.Fn semget "key_t key" "int nsems" "int flag"
diff --git a/lib/libsys/semop.2 b/lib/libsys/semop.2
--- a/lib/libsys/semop.2
+++ b/lib/libsys/semop.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm semop
.Nd atomic array of operations on a semaphore set
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ipc.h
.In sys/sem.h
diff --git a/lib/libsys/send.2 b/lib/libsys/send.2
--- a/lib/libsys/send.2
+++ b/lib/libsys/send.2
@@ -34,9 +34,8 @@
.Nm sendmsg ,
.Nm sendmmsg
.Nd send message(s) from a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/socket.h
.Ft ssize_t
.Fn send "int s" "const void *msg" "size_t len" "int flags"
diff --git a/lib/libsys/sendfile.2 b/lib/libsys/sendfile.2
--- a/lib/libsys/sendfile.2
+++ b/lib/libsys/sendfile.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm sendfile
.Nd send a file to a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.In sys/uio.h
diff --git a/lib/libsys/setcred.2 b/lib/libsys/setcred.2
--- a/lib/libsys/setcred.2
+++ b/lib/libsys/setcred.2
@@ -12,9 +12,8 @@
.Sh NAME
.Nm setcred
.Nd set current process credentials atomically
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/ucred.h
.Ft int
.Fn setcred "u_int flags" "const struct setcred *wcred" "size_t size"
diff --git a/lib/libsys/setfib.2 b/lib/libsys/setfib.2
--- a/lib/libsys/setfib.2
+++ b/lib/libsys/setfib.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm setfib
.Nd set the default FIB (routing table) for the calling process
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/socket.h
.Ft int
.Fn setfib "int fib"
diff --git a/lib/libsys/setgroups.2 b/lib/libsys/setgroups.2
--- a/lib/libsys/setgroups.2
+++ b/lib/libsys/setgroups.2
@@ -39,9 +39,8 @@
.Sh NAME
.Nm setgroups
.Nd set the calling process' supplementary groups
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In unistd.h
.Ft int
diff --git a/lib/libsys/setpgid.2 b/lib/libsys/setpgid.2
--- a/lib/libsys/setpgid.2
+++ b/lib/libsys/setpgid.2
@@ -32,9 +32,8 @@
.Nm setpgid ,
.Nm setpgrp
.Nd set process group
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn setpgid "pid_t pid" "pid_t pgrp"
diff --git a/lib/libsys/setregid.2 b/lib/libsys/setregid.2
--- a/lib/libsys/setregid.2
+++ b/lib/libsys/setregid.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm setregid
.Nd set real and effective group ID
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn setregid "gid_t rgid" "gid_t egid"
diff --git a/lib/libsys/setresuid.2 b/lib/libsys/setresuid.2
--- a/lib/libsys/setresuid.2
+++ b/lib/libsys/setresuid.2
@@ -26,9 +26,8 @@
.Nm setresgid ,
.Nm setresuid
.Nd "get or set real, effective and saved user or group ID"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In unistd.h
.Ft int
diff --git a/lib/libsys/setreuid.2 b/lib/libsys/setreuid.2
--- a/lib/libsys/setreuid.2
+++ b/lib/libsys/setreuid.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm setreuid
.Nd set real and effective user ID's
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn setreuid "uid_t ruid" "uid_t euid"
diff --git a/lib/libsys/setsid.2 b/lib/libsys/setsid.2
--- a/lib/libsys/setsid.2
+++ b/lib/libsys/setsid.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm setsid
.Nd create session and set process group ID
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft pid_t
.Fn setsid void
diff --git a/lib/libsys/setuid.2 b/lib/libsys/setuid.2
--- a/lib/libsys/setuid.2
+++ b/lib/libsys/setuid.2
@@ -34,9 +34,8 @@
.Nm setgid ,
.Nm setegid
.Nd set user and group ID
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn setuid "uid_t uid"
diff --git a/lib/libsys/shm_open.2 b/lib/libsys/shm_open.2
--- a/lib/libsys/shm_open.2
+++ b/lib/libsys/shm_open.2
@@ -32,9 +32,8 @@
.Sh NAME
.Nm memfd_create , shm_create_largepage , shm_open , shm_rename, shm_unlink
.Nd "shared memory object operations"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/mman.h
.In fcntl.h
diff --git a/lib/libsys/shmat.2 b/lib/libsys/shmat.2
--- a/lib/libsys/shmat.2
+++ b/lib/libsys/shmat.2
@@ -30,9 +30,8 @@
.Nm shmat ,
.Nm shmdt
.Nd attach or detach shared memory
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ipc.h
.In sys/shm.h
diff --git a/lib/libsys/shmctl.2 b/lib/libsys/shmctl.2
--- a/lib/libsys/shmctl.2
+++ b/lib/libsys/shmctl.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm shmctl
.Nd shared memory control
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/ipc.h
.In sys/shm.h
diff --git a/lib/libsys/shmget.2 b/lib/libsys/shmget.2
--- a/lib/libsys/shmget.2
+++ b/lib/libsys/shmget.2
@@ -29,9 +29,8 @@
.Sh NAME
.Nm shmget
.Nd obtain a shared memory identifier
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/shm.h
.Ft int
.Fn shmget "key_t key" "size_t size" "int flag"
diff --git a/lib/libsys/shutdown.2 b/lib/libsys/shutdown.2
--- a/lib/libsys/shutdown.2
+++ b/lib/libsys/shutdown.2
@@ -32,9 +32,8 @@
.Sh NAME
.Nm shutdown
.Nd disable sends and/or receives on a socket
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Ft int
diff --git a/lib/libsys/sigaction.2 b/lib/libsys/sigaction.2
--- a/lib/libsys/sigaction.2
+++ b/lib/libsys/sigaction.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigaction
.Nd software signal facilities
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Bd -literal
struct sigaction {
diff --git a/lib/libsys/sigaltstack.2 b/lib/libsys/sigaltstack.2
--- a/lib/libsys/sigaltstack.2
+++ b/lib/libsys/sigaltstack.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigaltstack
.Nd set and/or get signal stack context
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Bd -literal
typedef struct {
diff --git a/lib/libsys/sigfastblock.2 b/lib/libsys/sigfastblock.2
--- a/lib/libsys/sigfastblock.2
+++ b/lib/libsys/sigfastblock.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigfastblock
.Nd controls signals blocking with a simple memory write
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/signalvar.h
.Ft int
.Fn sigfastblock "int cmd" "void *ptr"
diff --git a/lib/libsys/sigpending.2 b/lib/libsys/sigpending.2
--- a/lib/libsys/sigpending.2
+++ b/lib/libsys/sigpending.2
@@ -34,9 +34,8 @@
.Sh NAME
.Nm sigpending
.Nd get pending signals
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Ft int
.Fn sigpending "sigset_t *set"
diff --git a/lib/libsys/sigprocmask.2 b/lib/libsys/sigprocmask.2
--- a/lib/libsys/sigprocmask.2
+++ b/lib/libsys/sigprocmask.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigprocmask
.Nd manipulate current signal mask
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Ft int
.Fo sigprocmask
diff --git a/lib/libsys/sigqueue.2 b/lib/libsys/sigqueue.2
--- a/lib/libsys/sigqueue.2
+++ b/lib/libsys/sigqueue.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigqueue
.Nd "queue a signal to a process (REALTIME)"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Ft int
.Fn sigqueue "pid_t pid" "int signo" "const union sigval value"
diff --git a/lib/libsys/sigreturn.2 b/lib/libsys/sigreturn.2
--- a/lib/libsys/sigreturn.2
+++ b/lib/libsys/sigreturn.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigreturn
.Nd return from signal
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Ft int
.Fn sigreturn "const ucontext_t *scp"
diff --git a/lib/libsys/sigstack.2 b/lib/libsys/sigstack.2
--- a/lib/libsys/sigstack.2
+++ b/lib/libsys/sigstack.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigstack
.Nd set and/or get signal stack context
-.Sh LIBRARY
-.Lb libc
.Sh DESCRIPTION
+.Lb libc
The
.Fn sigstack
function has been deprecated in favor of the interface described in
diff --git a/lib/libsys/sigsuspend.2 b/lib/libsys/sigsuspend.2
--- a/lib/libsys/sigsuspend.2
+++ b/lib/libsys/sigsuspend.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigsuspend
.Nd atomically release blocked signals and wait for interrupt
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Ft int
.Fn sigsuspend "const sigset_t *sigmask"
diff --git a/lib/libsys/sigwait.2 b/lib/libsys/sigwait.2
--- a/lib/libsys/sigwait.2
+++ b/lib/libsys/sigwait.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigwait
.Nd select a set of signals
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Ft int
.Fn sigwait "const sigset_t * restrict set" "int * restrict sig"
diff --git a/lib/libsys/sigwaitinfo.2 b/lib/libsys/sigwaitinfo.2
--- a/lib/libsys/sigwaitinfo.2
+++ b/lib/libsys/sigwaitinfo.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sigtimedwait , sigwaitinfo
.Nd "wait for queued signals (REALTIME)"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In signal.h
.Ft int
.Fo sigtimedwait
diff --git a/lib/libsys/socket.2 b/lib/libsys/socket.2
--- a/lib/libsys/socket.2
+++ b/lib/libsys/socket.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm socket
.Nd create an endpoint for communication
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/socket.h
.Ft int
.Fn socket "int domain" "int type" "int protocol"
diff --git a/lib/libsys/socketpair.2 b/lib/libsys/socketpair.2
--- a/lib/libsys/socketpair.2
+++ b/lib/libsys/socketpair.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm socketpair
.Nd create a pair of connected sockets
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/types.h
.In sys/socket.h
.Ft int
diff --git a/lib/libsys/stat.2 b/lib/libsys/stat.2
--- a/lib/libsys/stat.2
+++ b/lib/libsys/stat.2
@@ -34,9 +34,8 @@
.Nm fstat ,
.Nm fstatat
.Nd get file status
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/stat.h
.Ft int
.Fn stat "const char * restrict path" "struct stat * restrict sb"
diff --git a/lib/libsys/statfs.2 b/lib/libsys/statfs.2
--- a/lib/libsys/statfs.2
+++ b/lib/libsys/statfs.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm statfs
.Nd get file system statistics
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/mount.h
.Ft int
diff --git a/lib/libsys/swapon.2 b/lib/libsys/swapon.2
--- a/lib/libsys/swapon.2
+++ b/lib/libsys/swapon.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm swapon , swapoff
.Nd control devices for interleaved paging/swapping
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In vm/vm_param.h
.In vm/swap_pager.h
.Pp
diff --git a/lib/libsys/symlink.2 b/lib/libsys/symlink.2
--- a/lib/libsys/symlink.2
+++ b/lib/libsys/symlink.2
@@ -32,9 +32,8 @@
.Nm symlink ,
.Nm symlinkat
.Nd make symbolic link to a file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn symlink "const char *name1" "const char *name2"
diff --git a/lib/libsys/sync.2 b/lib/libsys/sync.2
--- a/lib/libsys/sync.2
+++ b/lib/libsys/sync.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm sync
.Nd "schedule file system updates"
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft void
.Fn sync void
diff --git a/lib/libsys/sysarch.2 b/lib/libsys/sysarch.2
--- a/lib/libsys/sysarch.2
+++ b/lib/libsys/sysarch.2
@@ -33,9 +33,8 @@
.Sh NAME
.Nm sysarch
.Nd architecture-dependent system call
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In machine/sysarch.h
.Ft int
.Fn sysarch "int number" "void *args"
diff --git a/lib/libsys/syscall.2 b/lib/libsys/syscall.2
--- a/lib/libsys/syscall.2
+++ b/lib/libsys/syscall.2
@@ -32,9 +32,8 @@
.Nm syscall ,
.Nm __syscall
.Nd indirect system call
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/syscall.h
.In unistd.h
.Ft int
diff --git a/lib/libsys/thr_exit.2 b/lib/libsys/thr_exit.2
--- a/lib/libsys/thr_exit.2
+++ b/lib/libsys/thr_exit.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm thr_exit
.Nd terminate current thread
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/thr.h
.Ft void
.Fn thr_exit "long *state"
diff --git a/lib/libsys/thr_kill.2 b/lib/libsys/thr_kill.2
--- a/lib/libsys/thr_kill.2
+++ b/lib/libsys/thr_kill.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm thr_kill
.Nd send signal to thread
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/thr.h
.Ft int
.Fn thr_kill "long id" "int sig"
diff --git a/lib/libsys/thr_new.2 b/lib/libsys/thr_new.2
--- a/lib/libsys/thr_new.2
+++ b/lib/libsys/thr_new.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm thr_new
.Nd create new thread of execution
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/thr.h
.Ft int
.Fn thr_new "struct thr_param *param" "int param_size"
diff --git a/lib/libsys/thr_self.2 b/lib/libsys/thr_self.2
--- a/lib/libsys/thr_self.2
+++ b/lib/libsys/thr_self.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm thr_self
.Nd return thread identifier for the calling thread
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/thr.h
.Ft int
.Fn thr_self "long *id"
diff --git a/lib/libsys/thr_set_name.2 b/lib/libsys/thr_set_name.2
--- a/lib/libsys/thr_set_name.2
+++ b/lib/libsys/thr_set_name.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm thr_set_name
.Nd set user-visible thread name
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/thr.h
.Ft int
.Fn thr_set_name "long id" "const char *name"
diff --git a/lib/libsys/thr_suspend.2 b/lib/libsys/thr_suspend.2
--- a/lib/libsys/thr_suspend.2
+++ b/lib/libsys/thr_suspend.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm thr_suspend
.Nd suspend the calling thread
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/thr.h
.Ft int
.Fn thr_suspend "struct timespec *timeout"
diff --git a/lib/libsys/thr_wake.2 b/lib/libsys/thr_wake.2
--- a/lib/libsys/thr_wake.2
+++ b/lib/libsys/thr_wake.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm thr_wake
.Nd wake up the suspended thread
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/thr.h
.Ft int
.Fn thr_wake "long id"
diff --git a/lib/libsys/timer_create.2 b/lib/libsys/timer_create.2
--- a/lib/libsys/timer_create.2
+++ b/lib/libsys/timer_create.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm timer_create
.Nd "create a per-process timer (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In time.h
.In signal.h
.Ft int
diff --git a/lib/libsys/timer_delete.2 b/lib/libsys/timer_delete.2
--- a/lib/libsys/timer_delete.2
+++ b/lib/libsys/timer_delete.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm timer_delete
.Nd "delete a per-process timer (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In time.h
.Ft int
.Fn timer_delete "timer_t timerid"
diff --git a/lib/libsys/timer_settime.2 b/lib/libsys/timer_settime.2
--- a/lib/libsys/timer_settime.2
+++ b/lib/libsys/timer_settime.2
@@ -33,9 +33,8 @@
.Nm timer_gettime ,
.Nm timer_settime
.Nd "per-process timers (REALTIME)"
-.Sh LIBRARY
-.Lb librt
.Sh SYNOPSIS
+.Lb librt
.In time.h
.Ft int
.Fn timer_getoverrun "timer_t timerid"
diff --git a/lib/libsys/timerfd.2 b/lib/libsys/timerfd.2
--- a/lib/libsys/timerfd.2
+++ b/lib/libsys/timerfd.2
@@ -32,9 +32,8 @@
.Nm timerfd_gettime ,
.Nm timerfd_settime
.Nd timers with file descriptor semantics
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/timerfd.h
.Ft int
.Fo timerfd_create
diff --git a/lib/libsys/truncate.2 b/lib/libsys/truncate.2
--- a/lib/libsys/truncate.2
+++ b/lib/libsys/truncate.2
@@ -32,9 +32,8 @@
.Nm truncate ,
.Nm ftruncate
.Nd truncate or extend a file to a specified length
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn truncate "const char *path" "off_t length"
diff --git a/lib/libsys/umask.2 b/lib/libsys/umask.2
--- a/lib/libsys/umask.2
+++ b/lib/libsys/umask.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm umask
.Nd set file creation mode mask
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/stat.h
.Ft mode_t
.Fn umask "mode_t numask"
diff --git a/lib/libsys/undelete.2 b/lib/libsys/undelete.2
--- a/lib/libsys/undelete.2
+++ b/lib/libsys/undelete.2
@@ -32,9 +32,8 @@
.Sh NAME
.Nm undelete
.Nd attempt to recover a deleted file
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn undelete "const char *path"
diff --git a/lib/libsys/unlink.2 b/lib/libsys/unlink.2
--- a/lib/libsys/unlink.2
+++ b/lib/libsys/unlink.2
@@ -33,9 +33,8 @@
.Nm unlinkat ,
.Nm funlinkat
.Nd remove directory entry
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft int
.Fn unlink "const char *path"
diff --git a/lib/libsys/utimensat.2 b/lib/libsys/utimensat.2
--- a/lib/libsys/utimensat.2
+++ b/lib/libsys/utimensat.2
@@ -35,9 +35,8 @@
.Nm futimens ,
.Nm utimensat
.Nd set file access and modification times
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/stat.h
.Ft int
.Fn futimens "int fd" "const struct timespec times[2]"
diff --git a/lib/libsys/utimes.2 b/lib/libsys/utimes.2
--- a/lib/libsys/utimes.2
+++ b/lib/libsys/utimes.2
@@ -36,9 +36,8 @@
.Nm futimes ,
.Nm futimesat
.Nd set file access and modification times
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/time.h
.Ft int
.Fn utimes "const char *path" "const struct timeval *times"
diff --git a/lib/libsys/utrace.2 b/lib/libsys/utrace.2
--- a/lib/libsys/utrace.2
+++ b/lib/libsys/utrace.2
@@ -32,9 +32,8 @@
.Sh NAME
.Nm utrace
.Nd insert user record in ktrace log
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/param.h
.In sys/time.h
.In sys/uio.h
diff --git a/lib/libsys/uuidgen.2 b/lib/libsys/uuidgen.2
--- a/lib/libsys/uuidgen.2
+++ b/lib/libsys/uuidgen.2
@@ -28,9 +28,8 @@
.Sh NAME
.Nm uuidgen
.Nd generate universally unique identifiers
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/uuid.h
.Ft int
.Fn uuidgen "struct uuid *store" "int count"
diff --git a/lib/libsys/vfork.2 b/lib/libsys/vfork.2
--- a/lib/libsys/vfork.2
+++ b/lib/libsys/vfork.2
@@ -31,9 +31,8 @@
.Sh NAME
.Nm vfork
.Nd create a new process without copying the address space
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft pid_t
.Fn vfork void
diff --git a/lib/libsys/wait.2 b/lib/libsys/wait.2
--- a/lib/libsys/wait.2
+++ b/lib/libsys/wait.2
@@ -36,9 +36,8 @@
.Nm wait4 ,
.Nm wait6
.Nd wait for processes to change status
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In sys/wait.h
.Ft pid_t
.Fn wait "int *status"
diff --git a/lib/libsys/write.2 b/lib/libsys/write.2
--- a/lib/libsys/write.2
+++ b/lib/libsys/write.2
@@ -34,9 +34,8 @@
.Nm pwrite ,
.Nm pwritev
.Nd write output
-.Sh LIBRARY
-.Lb libc
.Sh SYNOPSIS
+.Lb libc
.In unistd.h
.Ft ssize_t
.Fn write "int fd" "const void *buf" "size_t nbytes"

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