toolchain/glibc: remove obsolete versions
[openwrt.git] / toolchain / glibc / config / Config.in
diff --git a/toolchain/glibc/config/Config.in b/toolchain/glibc/config/Config.in
deleted file mode 100644 (file)
index 6f02223..0000000
+++ /dev/null
@@ -1,903 +0,0 @@
-config EGLIBC_OPTION_EGLIBC_ADVANCED_INET6
-       bool "IPv6 Advanced Sockets API support (RFC3542)"
-       default y
-       select EGLIBC_OPTION_EGLIBC_INET
-       help
-         This option group includes the functions specified by RFC 3542,
-         "Advanced Sockets Application Program Interface (API) for
-         IPv6".
-
-         This option group includes the following functions:
-
-               inet6_opt_append
-               inet6_opt_find
-               inet6_opt_finish
-               inet6_opt_get_val
-               inet6_opt_init
-               inet6_option_alloc
-               inet6_option_append
-               inet6_option_find
-               inet6_option_init
-               inet6_option_next
-               inet6_option_space
-               inet6_opt_next
-               inet6_opt_set_val
-               inet6_rth_add
-               inet6_rth_getaddr
-               inet6_rth_init
-               inet6_rth_reverse
-               inet6_rth_segments
-               inet6_rth_space
-
-
-config EGLIBC_OPTION_EGLIBC_BACKTRACE
-       bool "Functions for producing backtraces"
-       default y
-       help
-         This option group includes functions for producing a list of
-         the function calls that are currently active in a thread, from
-         within the thread itself.  These functions are often used
-         within signal handlers, to produce diagnostic output.
-
-         This option group includes the following functions:
-
-               backtrace
-               backtrace_symbols
-               backtrace_symbols_fd
-
-
-config EGLIBC_OPTION_EGLIBC_BIG_MACROS
-       bool "Use extensive inline code"
-       default y
-       help
-         This option group specifies whether certain pieces of code
-         should be inlined to achieve maximum speed.  If this option
-         group is not selected, function calls will be used instead,
-         hence reducing the library footprint.
-
-
-config EGLIBC_OPTION_EGLIBC_BSD
-       bool "BSD-specific functions, and their compatibility stubs"
-       default y
-       help
-         This option group includes functions specific to BSD kernels.
-         A number of these functions have stub versions that are also
-         included in libraries built for non-BSD systems for
-         compatibility.
-
-         This option group includes the following functions:
-
-               chflags
-               fchflags
-               lchmod
-               revoke
-               setlogin
-
-
-config EGLIBC_OPTION_EGLIBC_CXX_TESTS
-       bool "Tests that link against the standard C++ library."
-       default y
-       select EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO
-       select EGLIBC_OPTION_EGLIBC_LIBM
-       help
-         This option group does not include any C library functions;
-         instead, it controls which EGLIBC tests an ordinary 'make
-         tests' runs.  With this group disabled, tests that would
-         normally link against the standard C++ library are not
-         run.
-
-         The standard C++ library depends on the math library 'libm' and
-         the wide character I/O functions included in EGLIBC.  If those
-         option groups are disabled, this test must also be disabled.
-
-
-config EGLIBC_OPTION_EGLIBC_CATGETS
-       bool "Functions for accessing message catalogs"
-       default y
-       select EGLIBC_OPTION_EGLIBC_LOCALE_CODE
-       help
-         This option group includes functions for accessing message
-         catalogs: catopen, catclose, and catgets.
-
-         This option group depends on the EGLIBC_OPTION_EGLIBC_LOCALE_CODE
-         option group; if you disable that, you must also disable this.
-
-
-config EGLIBC_OPTION_EGLIBC_CHARSETS
-       bool "iconv/gconv character set conversion libraries"
-       default y
-       help
-
-         This option group includes support for character sets other
-         than ASCII (ANSI_X3.4-1968) and Unicode and ISO-10646 in their
-         various encodings.  This affects both the character sets
-         supported by the wide and multibyte character functions, and
-         those supported by the 'iconv' functions.
-
-         With this option group disabled, EGLIBC supports only the
-         following character sets:
-
-               ANSI_X3.4         - ASCII
-               ANSI_X3.4-1968
-               ANSI_X3.4-1986
-               ASCII
-               CP367
-               CSASCII
-               IBM367
-               ISO-IR-6
-               ISO646-US
-               ISO_646.IRV:1991
-               OSF00010020
-               US
-               US-ASCII
-
-               10646-1:1993      - ISO 10646, in big-endian UCS4 form
-               10646-1:1993/UCS4
-               CSUCS4
-               ISO-10646
-               ISO-10646/UCS4
-               OSF00010104
-               OSF00010105
-               OSF00010106
-               UCS-4
-               UCS-4BE
-               UCS4
-
-               UCS-4LE           - ISO 10646, in little-endian UCS4 form
-
-               ISO-10646/UTF-8   - ISO 10646, in UTF-8 form
-               ISO-10646/UTF8
-               ISO-IR-193
-               OSF05010001
-               UTF-8
-               UTF8
-
-               ISO-10646/UCS2    - ISO 10646, in target-endian UCS2 form
-               OSF00010100
-               OSF00010101
-               OSF00010102
-               UCS-2
-               UCS2
-
-               UCS-2BE           - ISO 10646, in big-endian UCS2 form
-               UNICODEBIG
-
-               UCS-2LE           - ISO 10646, in little-endian UCS2 form
-               UNICODELITTLE
-
-               WCHAR_T           - EGLIBC's internal form (target-endian,
-                                                       32-bit ISO 10646)
-
-
-config EGLIBC_OPTION_EGLIBC_CRYPT
-       bool "Encryption library"
-       default y
-       help
-         This option group includes the `libcrypt' library which
-         provides functions for one-way encryption.  Supported
-         encryption algorithms include MD5, SHA-256, SHA-512 and DES.
-
-
-config EGLIBC_OPTION_EGLIBC_CRYPT_UFC
-       bool "Ultra fast `crypt' implementation"
-       default y
-       select EGLIBC_OPTION_EGLIBC_CRYPT
-       help
-         This option group provides ultra fast DES-based implementation of
-         the `crypt' function.  When this option group is disabled,
-         (a) the library will not provide the setkey[_r] and encrypt[_r]
-         functions and (b) the crypt[_r] function will return NULL and set the
-         errno to ENOSYS if /salt/ passed does not correspond to either MD5,
-         SHA-256 or SHA-512 algorithm.
-
-
-config EGLIBC_OPTION_EGLIBC_DB_ALIASES
-       bool "Functions for accessing the mail aliases database"
-       default y
-       help
-         This option group includes functions for looking up mail
-         aliases in '/etc/aliases' or using nsswitch.  It includes the
-         following functions:
-
-               endaliasent
-               getaliasbyname
-               getaliasbyname_r
-               getaliasent
-               getaliasent_r
-               setaliasent
-
-         When this option group is disabled, the NSS service libraries
-         also lack support for querying their mail alias tables.
-
-
-config EGLIBC_OPTION_EGLIBC_ENVZ
-       bool "Functions for handling envz-style environment vectors."
-       default y
-       help
-         This option group contains functions for creating and operating
-         on envz vectors.  An "envz vector" is a vector of strings in a
-         contiguous block of memory, where each element is a name-value
-         pair, and elements are separated from their neighbors by null
-         characters.
-
-         This option group includes the following functions:
-
-               envz_add        envz_merge 
-               envz_entry      envz_remove
-               envz_get        envz_strip 
-
-
-config EGLIBC_OPTION_EGLIBC_FCVT
-       bool "Functions for converting floating-point numbers to strings"
-       default y
-       help
-         This option group includes functions for converting
-         floating-point numbers to strings.
-
-         This option group includes the following functions:
-
-               ecvt           qecvt
-               ecvt_r         qecvt_r
-               fcvt           qfcvt
-               fcvt_r         qfcvt_r
-               gcvt           qgcvt
-
-
-config EGLIBC_OPTION_EGLIBC_FMTMSG
-       bool "Functions for formatting messages"
-       default y
-       help
-         This option group includes the following functions:
-
-               addseverity    fmtmsg
-
-
-config EGLIBC_OPTION_EGLIBC_FSTAB
-       bool "Access functions for 'fstab'"
-       default y
-       help
-         This option group includes functions for reading the mount
-         point specification table, '/etc/fstab'.  These functions are
-         not included in the POSIX standard, which provides the
-         'getmntent' family of functions instead.
-
-         This option group includes the following functions:
-
-               endfsent       getfsspec
-               getfsent       setfsent
-               getfsfile
-
-
-config EGLIBC_OPTION_EGLIBC_FTRAVERSE
-       bool "Functions for traversing file hierarchies"
-       default y
-       help
-         This option group includes functions for traversing file
-         UNIX file hierachies.
-
-         This option group includes the following functions:
-
-               fts_open       ftw
-               fts_read       nftw
-               fts_children   ftw64
-               fts_set        nftw64
-               fts_close
-
-
-config EGLIBC_OPTION_EGLIBC_GETLOGIN
-       bool "The getlogin function"
-       default y
-       select EGLIBC_OPTION_EGLIBC_UTMP
-       help
-         This function group includes the 'getlogin' and 'getlogin_r'
-         functions, which return the user name associated by the login
-         activity with the current process's controlling terminal.
-
-         With this option group disabled, the 'glob' function will not
-         fall back on 'getlogin' to find the user's login name for tilde
-         expansion when the 'HOME' environment variable is not set.
-
-
-config EGLIBC_OPTION_EGLIBC_IDN
-       bool "International domain names support"
-       default y
-       help
-         This option group includes the `libcidn' library which
-         provides support for international domain names.
-
-
-config EGLIBC_OPTION_EGLIBC_INET
-       bool "Networking support"
-       default y
-       help
-         This option group includes networking-specific functions and
-         data.  With EGLIBC_OPTION_EGLIBC_INET disabled, the EGLIBC
-         installation and API changes as follows:
-
-         - The following libraries are not installed:
-
-               libanl
-               libnsl
-               libnss_compat
-               libnss_dns
-               libnss_hesiod
-               libnss_nis
-               libnss_nisplus
-               libresolv
-                
-         - The following functions and variables are omitted from libc:
-
-               authdes_create           hstrerror              svc_fdset
-               authdes_getucred         htonl                  svc_getreq
-               authdes_pk_create        htons                  svc_getreq_common
-               authnone_create          if_freenameindex       svc_getreq_poll
-               authunix_create          if_indextoname         svc_getreqset
-               authunix_create_default  if_nameindex           svc_max_pollfd
-               bindresvport             if_nametoindex         svc_pollfd
-               callrpc                  in6addr_any            svcraw_create
-               cbc_crypt                in6addr_loopback       svc_register
-               clnt_broadcast           inet6_opt_append       svc_run
-               clnt_create              inet6_opt_find         svc_sendreply
-               clnt_pcreateerror        inet6_opt_finish       svctcp_create
-               clnt_perrno              inet6_opt_get_val      svcudp_bufcreate
-               clnt_perror              inet6_opt_init         svcudp_create
-               clntraw_create           inet6_option_alloc     svcudp_enablecache
-               clnt_spcreateerror       inet6_option_append    svcunix_create
-               clnt_sperrno             inet6_option_find      svcunixfd_create
-               clnt_sperror             inet6_option_init      svc_unregister
-               clnttcp_create           inet6_option_next      user2netname
-               clntudp_bufcreate        inet6_option_space     xdecrypt
-               clntudp_create           inet6_opt_next         xdr_accepted_reply
-               clntunix_create          inet6_opt_set_val      xdr_array
-               des_setparity            inet6_rth_add          xdr_authdes_cred
-               ecb_crypt                inet6_rth_getaddr      xdr_authdes_verf
-               endaliasent              inet6_rth_init         xdr_authunix_parms
-               endhostent               inet6_rth_reverse      xdr_bool
-               endnetent                inet6_rth_segments     xdr_bytes
-               endnetgrent              inet6_rth_space        xdr_callhdr
-               endprotoent              inet_addr              xdr_callmsg
-               endrpcent                inet_aton              xdr_char
-               endservent               inet_lnaof             xdr_cryptkeyarg
-               ether_aton               inet_makeaddr          xdr_cryptkeyarg2
-               ether_aton_r             inet_netof             xdr_cryptkeyres
-               ether_hostton            inet_network           xdr_des_block
-               ether_line               inet_nsap_addr         xdr_double
-               ether_ntoa               inet_nsap_ntoa         xdr_enum
-               ether_ntoa_r             inet_ntoa              xdr_float
-               ether_ntohost            inet_ntop              xdr_free
-               freeaddrinfo             inet_pton              xdr_getcredres
-               freeifaddrs              innetgr                xdr_hyper
-               gai_strerror             iruserok               xdr_int
-               getaddrinfo              iruserok_af            xdr_int16_t
-               getaliasbyname           key_decryptsession     xdr_int32_t
-               getaliasbyname_r         key_decryptsession_pk  xdr_int64_t
-               getaliasent              key_encryptsession     xdr_int8_t
-               getaliasent_r            key_encryptsession_pk  xdr_keybuf
-               gethostbyaddr            key_gendes             xdr_key_netstarg
-               gethostbyaddr_r          key_get_conv           xdr_key_netstres
-               gethostbyname            key_secretkey_is_set   xdr_keystatus
-               gethostbyname2           key_setnet             xdr_long
-               gethostbyname2_r         key_setsecret          xdr_longlong_t
-               gethostbyname_r          netname2host           xdrmem_create
-               gethostent               netname2user           xdr_netnamestr
-               gethostent_r             ntohl                  xdr_netobj
-               getifaddrs               ntohs                  xdr_opaque
-               getipv4sourcefilter      passwd2des             xdr_opaque_auth
-               get_myaddress            pmap_getmaps           xdr_pmap
-               getnameinfo              pmap_getport           xdr_pmaplist
-               getnetbyaddr             pmap_rmtcall           xdr_pointer
-               getnetbyaddr_r           pmap_set               xdr_quad_t
-               getnetbyname             pmap_unset             xdrrec_create
-               getnetbyname_r           rcmd                   xdrrec_endofrecord
-               getnetent                rcmd_af                xdrrec_eof
-               getnetent_r              registerrpc            xdrrec_skiprecord
-               getnetgrent              res_init               xdr_reference
-               getnetgrent_r            rexec                  xdr_rejected_reply
-               getnetname               rexec_af               xdr_replymsg
-               getprotobyname           rexecoptions           xdr_rmtcall_args
-               getprotobyname_r         rpc_createerr          xdr_rmtcallres
-               getprotobynumber         rresvport              xdr_short
-               getprotobynumber_r       rresvport_af           xdr_sizeof
-               getprotoent              rtime                  xdrstdio_create
-               getprotoent_r            ruserok                xdr_string
-               getpublickey             ruserok_af             xdr_u_char
-               getrpcbyname             ruserpass              xdr_u_hyper
-               getrpcbyname_r           setaliasent            xdr_u_int
-               getrpcbynumber           sethostent             xdr_uint16_t
-               getrpcbynumber_r         setipv4sourcefilter    xdr_uint32_t
-               getrpcent                setnetent              xdr_uint64_t
-               getrpcent_r              setnetgrent            xdr_uint8_t
-               getrpcport               setprotoent            xdr_u_long
-               getsecretkey             setrpcent              xdr_u_longlong_t
-               getservbyname            setservent             xdr_union
-               getservbyname_r          setsourcefilter        xdr_unixcred
-               getservbyport            svcauthdes_stats       xdr_u_quad_t
-               getservbyport_r          svcerr_auth            xdr_u_short
-               getservent               svcerr_decode          xdr_vector
-               getservent_r             svcerr_noproc          xdr_void
-               getsourcefilter          svcerr_noprog          xdr_wrapstring
-               h_errlist                svcerr_progvers        xencrypt
-               h_errno                  svcerr_systemerr       xprt_register
-               herror                   svcerr_weakauth        xprt_unregister
-               h_nerr                   svc_exit
-               host2netname             svcfd_create
-
-         - The rpcgen, nscd, and rpcinfo commands are not installed.
-
-         - The 'rpc' file (a text file listing RPC services) is not installed.
-
-         Socket-related system calls do not fall in this option group,
-         because many are also used for other inter-process
-         communication mechanisms.  For example, the 'syslog' routines
-         use Unix-domain sockets to communicate with the syslog daemon;
-         syslog is valuable in non-networked contexts.
-
-
-config EGLIBC_OPTION_EGLIBC_INET_ANL
-       bool "Asynchronous name lookup"
-       default y
-       select EGLIBC_OPTION_EGLIBC_INET
-       help
-         This option group includes the `libanl' library which
-         provides support for asynchronous name lookup.
-
-
-config EGLIBC_OPTION_EGLIBC_LIBM
-       bool "libm (math library)"
-       default y
-       help
-         This option group includes the 'libm' library, containing
-         mathematical functions.  If this option group is omitted, then
-         an EGLIBC installation does not include shared or unshared versions
-         of the math library.
-
-         Note that this does not remove all floating-point related
-         functionality from EGLIBC; for example, 'printf' and 'scanf'
-         can still print and read floating-point values with this option
-         group disabled.
-
-         Note that the ISO Standard C++ library 'libstdc++' depends on
-         EGLIBC's math library 'libm'.  If you disable this option
-         group, you will not be able to build 'libstdc++' against the
-         resulting EGLIBC installation.
-
-
-config EGLIBC_OPTION_EGLIBC_LIBM_BIG
-       bool "Math library size"
-       default y
-       help
-         This option group enables default configuration of the math library.
-         Not selecting this option group removes most of the extended and
-         double precision math functions and replaces them with wrappers
-         to the single precision couterparts.
-         Doing so greatly degrades quality of calculations carried
-         out by the functions of the math library, but also significantly
-         reduces the size of the libm.
-         This option group is useful for systems that do not rely on precise
-         floating point math.
-
-
-config EGLIBC_OPTION_EGLIBC_LOCALES
-       bool "Locale definitions"
-       default y
-       help
-         This option group includes all locale definitions other than
-         that for the "C" locale.  If this option group is omitted, then
-         only the "C" locale is supported.
-
-
-config EGLIBC_OPTION_EGLIBC_LOCALE_CODE
-       bool "Locale functions"
-       default y
-       select EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR
-       help
-         This option group includes locale support functions, programs,
-         and libraries.  With EGLIBC_OPTION_EGLIBC_LOCALE_CODE disabled,
-         EGLIBC supports only the 'C' locale (also known as 'POSIX'),
-         and ignores the settings of the 'LANG' and 'LC_*' environment
-         variables.
-
-         With EGLIBC_OPTION_EGLIBC_LOCALE_CODE disabled, the following
-         functions are omitted from libc:
-
-               duplocale   localeconv  nl_langinfo    rpmatch  strfmon_l
-               freelocale  newlocale   nl_langinfo_l  strfmon  uselocale
-
-         Furthermore, only the LC_CTYPE and LC_TIME categories of the
-         standard "C" locale are available.
-
-         The EGLIBC_OPTION_EGLIBC_CATGETS option group depends on this option
-         group; if you disable EGLIBC_OPTION_EGLIBC_LOCALE_CODE, you must also
-         disable EGLIBC_OPTION_EGLIBC_CATGETS.
-
-
-config EGLIBC_OPTION_EGLIBC_MEMUSAGE
-       bool "Memory profiling library"
-       default y
-       help
-         This option group includes the `libmemusage' library and
-         the `memusage' and `memusagestat' utilities.
-         These components provide memory profiling functions.
-
-         EGLIBC_OPTION_EGLIBC_MEMUSAGE_DEFAULT_BUFFER_SIZE
-
-         Libmemusage library buffers the profiling data in memory
-         before writing it out to disk.  By default, the library
-         allocates 1.5M buffer, which can be substantial for some
-         systems.  EGLIBC_OPTION_EGLIBC_MEMUSAGE_DEFAULT_BUFFER_SIZE option
-         allows to change the default buffer size.  It specifies
-         the number of entries the buffer should have.
-         On most architectures one buffer entry amounts to 48 bytes,
-         so setting this option to the value of 512 will reduce the size of
-         the memory buffer to 24K.
-
-
-config EGLIBC_OPTION_EGLIBC_NIS
-       bool "Support for NIS, NIS+, and the special 'compat' services."
-       default n
-       select EGLIBC_OPTION_EGLIBC_INET
-       select EGLIBC_OPTION_EGLIBC_SUNRPC
-       help
-         This option group includes the NIS, NIS+, and 'compat' Name
-         Service Switch service libraries.  When it is disabled, those
-         services libraries are not installed; you should remove any
-         references to them from your 'nsswitch.conf' file.
-
-         This option group depends on the EGLIBC_OPTION_EGLIBC_INET option
-         group; you must enable that to enable this option group.
-
-
-config EGLIBC_OPTION_EGLIBC_NSSWITCH
-       bool "Name service switch (nsswitch) support"
-       default y
-       select EGLIBC_OPTION_EGLIBC_INET
-       help
-
-         This option group includes support for the 'nsswitch' facility.
-         With this option group enabled, all EGLIBC functions for
-         accessing various system databases (passwords and groups;
-         networking; aliases; public keys; and so on) consult the
-         '/etc/nsswitch.conf' configuration file to decide how to handle
-         queries.
-
-         With this option group disabled, EGLIBC uses a fixed list of
-         services to satisfy queries on each database, as requested by
-         configuration files specified when EGLIBC is built.  Your
-         'option-groups.config' file must set the following two
-         variables:
-
-         EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG
-
-               Set this to the name of a file whose contents observe the
-               same syntax as an ordinary '/etc/nsswitch.conf' file.  The
-               EGLIBC build process parses this file just as EGLIBC would
-               at run time if EGLIBC_NSSWITCH were enabled, and
-               produces a C library that uses the nsswitch service
-               libraries to search for database entries as this file
-               specifies, instead of consulting '/etc/nsswitch.conf' at run
-               time.
-
-               This should be an absolute filename.  The EGLIBC build
-               process may use it from several different working
-               directories.  It may include references to Makefile
-               variables like 'common-objpfx' (the top of the build tree,
-               with a trailing slash), or '..' (the top of the source tree,
-               with a trailing slash).
-
-               The EGLIBC source tree includes a sample configuration file
-               named 'nss/fixed-nsswitch.conf'; for simple configurations,
-               you will probably want to delete references to databases not
-               needed on your system.
-
-         EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_FUNCTIONS
-
-               The EGLIBC build process uses this file to decide which
-               functions to make available from which service libraries.
-               The file 'nss/fixed-nsswitch.functions' serves as a sample
-               configuration file for this setting, and explains its syntax
-               and meaning in more detail.
-
-               This should be an absolute file name.  The EGLIBC build
-               process may use it from several different working
-               directories.  It may include references to Makefile
-               variables like 'common-objpfx' (the top of the build tree,
-               with a trailing slash), or '..' (the top of the source tree,
-               with a trailing slash).
-
-               Be sure to mention each function in each service you wish to
-               use.  If you do not mention a service's function here, the
-               EGLIBC database access functions will not find it, even if
-               it is listed in the EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG
-               file.
-
-         In this arrangement, EGLIBC will not use the 'dlopen' and
-         'dlsym' functions to find database access functions.  Instead,
-         libc hard-codes references to the service libraries' database
-         access functions.  You must explicitly link your program
-         against the name service libraries (those whose names start
-         with 'libnss_', in the sysroot's '/lib' directory) whose
-         functions you intend to use.  This arrangement helps
-         system-wide static analysis tools decide which functions a
-         system actually uses.
-
-         Note that some nsswitch service libraries require other option
-         groups to be enabled; for example, the EGLIBC_OPTION_EGLIBC_INET
-         option group must be enabled to use the 'libnss_dns.so.2'
-         service library, which uses the Domain Name System network
-         protocol to answer queries.
-
-
-config EGLIBC_OPTION_EGLIBC_RCMD
-       bool "Support for 'rcmd' and related library functions"
-       default y
-       select EGLIBC_OPTION_EGLIBC_INET
-       help
-         This option group includes functions for running commands on
-         remote machines via the 'rsh' protocol, and doing authentication
-         related to those functions.  This also includes functions that
-         use the 'rexec' protocol.
-
-         This option group includes the following functions:
-
-               rcmd            ruserok
-               rcmd_af         ruserok_af
-               rexec           iruserok
-               rexec_af        iruserok_af
-               rresvport       ruserpass
-               rresvport_af
-
-
-config EGLIBC_OPTION_EGLIBC_RTLD_DEBUG
-       bool "Runtime linker debug print outs"
-       default y
-       help
-         This option group enables debug output of the runtime linker
-         which is activated via LD_DEBUG and LD_TRACE_PRELINKING
-         environment variables.  Disabling this option group yields
-         a smaller runtime linker binary.
-         BEWARE: Disabling this option group is likely to break
-         the `ldd' utility which may also be used by the prelinker.
-         In particular, the `--unused' ldd option will not work correctly.
-
-
-config EGLIBC_OPTION_EGLIBC_SPAWN
-       bool "Support for POSIX posix_spawn functions"
-       default y
-       help
-         This option group includes the POSIX functions for executing
-         programs in child processes without using 'fork' or 'vfork'.
-
-         This option group includes the following functions:
-
-               posix_spawn
-               posix_spawnattr_destroy
-               posix_spawnattr_getflags
-               posix_spawnattr_getpgroup
-               posix_spawnattr_getschedparam
-               posix_spawnattr_getschedpolicy
-               posix_spawnattr_getsigdefault
-               posix_spawnattr_getsigmask
-               posix_spawnattr_init
-               posix_spawnattr_setflags
-               posix_spawnattr_setpgroup
-               posix_spawnattr_setschedparam
-               posix_spawnattr_setschedpolicy
-               posix_spawnattr_setsigdefault
-               posix_spawnattr_setsigmask
-               posix_spawn_file_actions_addclose
-               posix_spawn_file_actions_adddup2
-               posix_spawn_file_actions_addopen
-               posix_spawn_file_actions_destroy
-               posix_spawn_file_actions_init
-               posix_spawnp
-
-         This option group also provides the ability for the iconv,
-         localedef, and locale programs to operate transparently on
-         compressed charset definitions.  When this option group is
-         disabled, those programs will only operate on uncompressed
-         charmap files.
-
-
-config EGLIBC_OPTION_EGLIBC_STREAMS
-       bool "Support for accessing STREAMS."
-       default y
-       help
-         This option group includes functions for reading and writing
-         messages to and from STREAMS.  The STREAMS interface provides a
-         uniform mechanism for implementing networking services and other
-         character-based I/O.  (STREAMS are not to be confused with
-         <stdio.h> FILE objects, also called 'streams'.)
-
-         This option group includes the following functions:
-
-               getmsg          putpmsg
-               getpmsg         fattach
-               isastream       fdetach
-               putmsg
-
-
-config EGLIBC_OPTION_EGLIBC_SUNRPC
-       bool "Support for the Sun 'RPC' protocol."
-       default n
-       select EGLIBC_OPTION_EGLIBC_INET
-       help
-         This option group includes support for the Sun RPC protocols,
-         including the 'rpcgen' and 'rpcinfo' programs.
-
-
-config EGLIBC_OPTION_EGLIBC_UTMP
-       bool "Older access functions for 'utmp' login records"
-       default y
-       help
-         This option group includes the older 'utent' family of
-         functions for accessing user login records in the 'utmp' file.
-         POSIX omits these functions in favor of the 'utxent' family,
-         and they are obsolete on systems other than Linux.
-
-         This option group includes the following functions:
-
-               endutent
-               getutent
-               getutent_r
-               getutid
-               getutid_r
-               getutline
-               getutline_r
-               logwtmp
-               pututline
-               setutent
-               updwtmp
-               utmpname
-
-         This option group includes the following libraries:
-
-               libutil.so (and libutil.a)
-
-
-config EGLIBC_OPTION_EGLIBC_UTMPX
-       bool "POSIX access functions for 'utmp' login records"
-       default y
-       select EGLIBC_OPTION_EGLIBC_UTMP    
-       help
-         This option group includes the POSIX functions for reading and
-         writing user login records in the 'utmp' file (usually
-         '/var/run/utmp').  The POSIX functions operate on 'struct
-         utmpx' structures, as opposed to the family of older 'utent'
-         functions, which operate on 'struct utmp' structures.
-
-         This option group includes the following functions:
-
-               endutxent
-               getutmp
-               getutmpx
-               getutxent
-               getutxid
-               getutxline
-               pututxline
-               setutxent
-               updwtmpx
-               utmpxname
-
-
-config EGLIBC_OPTION_EGLIBC_WORDEXP
-       bool "Shell-style word expansion"
-       default y
-       help
-         This option group includes the 'wordexp' function for
-         performing word expansion in the manner of the shell, and the
-         accompanying 'wordfree' function.
-
-
-config EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR
-       bool "ISO C library wide character functions, excluding I/O"
-       default y
-       help
-         This option group includes the functions defined by the ISO C
-         standard for working with wide and multibyte characters in
-         memory.  Functions for reading and writing wide and multibyte
-         characters from and to files call in the
-         EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO option group.
-
-         This option group includes the following functions:
-
-               btowc         mbsinit       wcscspn       wcstoll
-               iswalnum      mbsrtowcs     wcsftime      wcstombs
-               iswalpha      mbstowcs      wcslen        wcstoul
-               iswblank      mbtowc        wcsncat       wcstoull
-               iswcntrl      swprintf      wcsncmp       wcstoumax
-               iswctype      swscanf       wcsncpy       wcsxfrm
-               iswdigit      towctrans     wcspbrk       wctob
-               iswgraph      towlower      wcsrchr       wctomb
-               iswlower      towupper      wcsrtombs     wctrans
-               iswprint      vswprintf     wcsspn        wctype
-               iswpunct      vswscanf      wcsstr        wmemchr
-               iswspace      wcrtomb       wcstod        wmemcmp
-               iswupper      wcscat        wcstof        wmemcpy
-               iswxdigit     wcschr        wcstoimax     wmemmove
-               mblen         wcscmp        wcstok        wmemset
-               mbrlen        wcscoll       wcstol
-               mbrtowc       wcscpy        wcstold
-
-
-config EGLIBC_OPTION_POSIX_REGEXP
-       bool "Regular expressions"
-       default y
-       help
-         This option group includes the POSIX regular expression
-         functions, and the associated non-POSIX extensions and
-         compatibility functions.
-
-         With EGLIBC_OPTION_POSIX_REGEXP disabled, the following functions are
-         omitted from libc:
-
-               re_comp                 re_max_failures         regcomp
-               re_compile_fastmap      re_search               regerror
-               re_compile_pattern      re_search_2             regexec
-               re_exec                 re_set_registers        regfree
-               re_match                re_set_syntax           rpmatch
-               re_match_2              re_syntax_options
-
-         Furthermore, the compatibility regexp interface defined in the
-         <regexp.h> header file, 'compile', 'step', and 'advance', is
-         omitted.
-
-
-config EGLIBC_OPTION_POSIX_REGEXP_GLIBC
-       bool "Regular expressions from GLIBC"
-       default y
-       select EGLIBC_OPTION_POSIX_REGEXP
-       help
-         This option group specifies which regular expression
-         library to use.  The choice is between regex
-         implementation from GLIBC and regex implementation from
-         libiberty.  The GLIBC variant is fully POSIX conformant and
-         optimized for speed; regex from libiberty is more than twice
-         as small while still is enough for most practical purposes.
-
-
-config EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO
-       bool "Input and output functions for wide characters"
-       default y
-       select EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR
-       help
-         This option group includes functions for reading and writing
-         wide characters to and from <stdio.h> streams.
-
-         This option group includes the following functions:
-
-               fgetwc        fwprintf      putwchar      vwscanf
-               fgetws        fwscanf       ungetwc       wprintf
-               fputwc        getwc         vfwprintf     wscanf
-               fputws        getwchar      vfwscanf
-               fwide         putwc         vwprintf
-
-         This option group further includes the following unlocked
-         variants of the above functions:
-
-               fgetwc_unlocked           getwc_unlocked
-               fgetws_unlocked           getwchar_unlocked
-               fputwc_unlocked           putwc_unlocked
-               fputws_unlocked           putwchar_unlocked
-                                       
-         Note that the GNU standard C++ library, 'libstdc++.so', uses
-         some of these functions; you will not be able to link or run
-         C++ programs if you disable this option group.
-
-         This option group also affects the behavior of the following
-         functions:
-
-               fdopen
-               fopen
-               fopen64
-               freopen
-               freopen64
-
-         These functions all take an OPENTYPE parameter which may
-         contain a string of the form ",ccs=CHARSET", indicating that
-         the underlying file uses the character set named CHARSET.
-         This produces a wide-oriented stream, which is only useful
-         when the functions included in this option group are present.
-         If the user attempts to open a file specifying a character set
-         in the OPENTYPE parameter, and EGLIBC was built with this
-         option group disabled, the function returns NULL, and sets
-         errno to EINVAL.