intro(3): Update the list of included libraries
- Extend the list of main libraries of section 3 - Extend the library functions that are included in the libc MFC after: 2 weeks Submitted by: Naga Chaitanya Vellanki <pnagato at protonmail dot com> Approved by: gbe Differential Revision: https://reviews.freebsd.org/D26476
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2020-12-20 02:59:44 +00:00
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@ -28,12 +28,17 @@
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.\" @(#)intro.3 8.1 (Berkeley) 6/5/93
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.\" $FreeBSD$
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.\"
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.Dd March 22, 2017
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.Dd October 6, 2020
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.Dt INTRO 3
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.Os
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.Sh NAME
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.Nm intro
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.Nd introduction to the C libraries
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.Sh SYNOPSIS
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.Nm cc
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.Op Ar flags
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.Ar
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.Op Fl llibrary
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.Sh DESCRIPTION
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This section provides an overview of the C
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library functions, their error returns and other
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@ -47,7 +52,11 @@ must be indicated at compile time with the
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option of the compiler.
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.Pp
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The various libraries (followed by the loader flag):
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.Bl -tag -width "libc (-lc)"
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.Bl -tag -width "libbluetooth (-lbluetooth)"
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.It Em libbluetooth Pq Fl l Ns Ar bluetooth
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The bluetooth library.
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See
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.Xr bluetooth 3 .
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.It Em libc Pq Fl l Ns Ar c
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Standard C library functions.
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When using the C compiler
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@ -57,21 +66,58 @@ to supply the loader flag
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.Fl l Ns Ar c
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for these functions.
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There are several `libraries' or groups of functions included inside of
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.Em libc
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: the standard
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.Tn I/O
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routines,
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database routines,
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bit operators,
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string operators,
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character tests and character operators,
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des encryption routines,
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storage allocation, time functions, signal handling and more.
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.Em libc :
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.Bl -tag -width "XXXXXX"
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.It standard I/O routines
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see
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.Xr stdio 3
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.It database routines
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see
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.Xr db 3
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.It bit operators
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see
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.Xr bitstring 3
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.It string operators
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see
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.Xr string 3
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.It character tests and character operators
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.It storage allocation
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see
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.Xr mpool 3
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.It regular-expressions
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see
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.Xr regex 3
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.It remote procedure calls (RPC)
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see
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.Xr rpc 3
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.It time functions
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see
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.Xr time 3
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.It signal handling
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see
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.Xr signal 3
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.El
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.It Em libcalendar Pq Fl l Ns Ar calendar
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The calendar arithmetic library.
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See
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.Xr calendar 3 .
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.It Em libcam Pq Fl l Ns Ar cam
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The common access method user library.
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See
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.Xr cam 3 .
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.It Em libcrypt Pq Fl l Ns Ar crypt
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The crypt library.
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See
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.Xr crypt 3 .
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.It Em libcurses Pq Fl l Ns Ar curses Fl l Ns Ar termcap
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Terminal independent screen management routines
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for two dimensional non-bitmap display terminals.
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(See
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.Xr ncurses 3 . )
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See
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.Xr ncurses 3 .
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.It Em libcuse Pq Fl l Ns Ar cuse
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The userland character device library.
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See
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.Xr cuse 3 .
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.It Em libcompat Pq Fl l Ns Ar compat
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Functions which are obsolete but are available for compatibility with
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.Bx 4.3 .
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@ -82,32 +128,106 @@ have been included for source code compatibility.
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Use of these routines should, for the most part, be avoided.
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The manual page entry for each compatibility routine
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indicates the proper interface to use.
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.It Em libdevinfo Pq Fl l Ns Ar devinfo
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The Device and Resource Information Utility library.
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See
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.Xr devinfo 3 .
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.It Em libdevstat Pq Fl l Ns Ar devstat
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The Device Statistics library.
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See
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.Xr devstat 3 .
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.It Em libdwarf Pq Fl l Ns Ar dwarf
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The DWARF access library.
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See
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.Xr dwarf 3 .
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.It Em libelf Pq Fl l Ns Ar elf
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The ELF access library.
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See
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.Xr elf 3 .
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.It Em libfetch Pq Fl l Ns Ar fetch
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The file transfer library.
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See
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.Xr fetch 3 .
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.It Em libfigpar Pq Fl l Ns Ar figpar
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The configuration file parsing library.
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See
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.Xr figpar 3 .
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.It Em libgpio Pq Fl l Ns Ar gpio
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The general-purpose input output library (GPIO).
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See
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.Xr gpio 3 .
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.It Em libgssapi Pq Fl l Ns Ar gssapi
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The generic security service application programming
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interface.
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See
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.Xr gssapi 3 .
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.It Em libjail Pq Fl l Ns Ar jail
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The jail library.
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See
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.Xr jail 3 .
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.It Em libkvm Pq Fl l Ns Ar kvm
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Functions used to access kernel memory are in this library.
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They can be used
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against both a running system and a crash dump.
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(See
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.Xr kvm 3 . )
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See
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.Xr kvm 3 .
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.It Em libl Pq Fl l Ns Ar l
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The library for
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.Xr lex 1 .
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.It Em libm Pq Fl l Ns Ar m
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The math library,
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.Em libm .
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The math library is loaded as needed by the Pascal compiler,
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but not by the C compiler which requires the
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.Fl l Ns Ar m
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flag.
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(See
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.Xr math 3 . )
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The math library.
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See
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.Xr math 3 .
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.It Em libmd Pq Fl l Ns Ar md
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The message digest library.
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See
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.Xr md4 3 ,
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.Xr md5 3 ,
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.Xr sha 3 ,
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.Xr sha256 3 ,
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.Xr sha512 3 ,
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.Xr ripemd 3 ,
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.Xr skein 3 .
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.It Em libmp Pq Fl l Ns Ar mp
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.It Em libpam Pq Fl l Ns Ar pam
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The pluggable authentication module library.
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See
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.Xr pam 3 .
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.It Em libpcap Pq Fl l Ns Ar pcap
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The packet capture library.
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See
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.Xr pcap 3 .
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.It Em libpmc Pq Fl l Ns Ar pmc
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The performance counters library.
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See
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.Xr pmc 3 .
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.It Em libpthread Pq Fl l Ns Ar pthread
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The POSIX threads library.
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See
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.Xr pthread 3 .
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.It Em libsysdecode Pq Fl l Ns Ar sysdecode
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The system argument decoding library.
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See
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.Xr sysdecode 3 .
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.It Em libtermcap Pq Fl l Ns Ar termcap
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The terminal independent operation library package.
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(See
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.Xr termcap 3 . )
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See
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.Xr termcap 3 .
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.It Em libusb Pq Fl l Ns Ar usb
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The USB access library.
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See
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.Xr usb 3 .
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.It Em libvgl Pq Fl l Ns Ar vgl
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The video graphics library.
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See
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.Xr vgl 3 .
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.It Em liby Pq Fl l Ns Ar y
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The library for
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.Xr yacc 1 .
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.It Em libz Pq Fl l Ns Ar z
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The general-purpose data compression library.
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See
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.Xr zlib 3 .
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.El
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.Sh FILES
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.Bl -tag -width /usr/lib/libm_p.a -compact
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